Includes.

Make Pixel static.
Clean up comments.
2025-03-01 17:08:44 -05:00 · 2025-03-01 16:49:15 -05:00 · 2025-03-01 16:15:21 -05:00 · 2025-03-01 15:43:40 -05:00 · 2025-03-01 10:34:24 -05:00 · 2025-02-26 19:26:53 -05:00
98 changed files with 13336 additions and 18177 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,5 @@
 **/Makefile
 **/*.cbp
 **/node-modules/
+**/CMakeLists.txt.user
+**/catch2/bin/
--- a/README.md
+++ b/README.md
@@ -2,15 +2,16 @@

 This repository is a collection of useful code snippets and configurations.

-```
-github.com/shaunrd0/klips/
+```bash
+shaunrd0/klips/
 ├── ansible     # Ansible roles, playbooks, and examples
 ├── blockchain  # Blockchain related project templates and examples
 ├── cpp         # C++ programs, datastructures, and other examples
 ├── dotnet      # .NET projects and examples
+├── esp         # ESP32 projects and examples
 ├── figlet      # Figlet fonts I like :)
 ├── javascript  # Javascript projects and examples
-├── python      # Python scripts or tools I've made   
-├── README.md   
-└── scripts     # Bash scripts
+├── python      # Python scripts and tools I've made
+├── scripts     # Bash scripts
+└── README.md
 ```
--- a/ansible/README.md
+++ b/ansible/README.md
@@ -1,4 +1,4 @@
-# Ansible 
+# ansible

 A few simple roles / plays I've put together in learning how to use Ansible can be found under their corresponding directories.

--- a/blockchain/eth/truffle-solidity/README.md
+++ b/blockchain/eth/truffle-solidity/README.md
@@ -1,3 +1,4 @@
+# blockchain

 A template project for getting started working on the Ethereum blockchain.
 This project comes with basic packages for compiling and deploying Solidity contracts with Truffle.
@@ -72,7 +73,7 @@ I explain how to configure metamask on ropsten on [Knoats - Solidity](https://kn

 Give yourself test Ethereum with the [Ropsten ETH Faucet](https://faucet.ropsten.be)

-To deploy to ropsten test network, and verify using `truffle-verify-plugin` - 
+To deploy to ropsten test network, and verify using `truffle-verify-plugin` -

 ```asm
 npx truffle migrate --network ropsten
--- a/cpp/README.md
+++ b/cpp/README.md
@@ -1,4 +1,4 @@
-# Cpp
+# cpp

 ```bash
 shaunrd0/klips/cpp/
@@ -13,11 +13,11 @@ shaunrd0/klips/cpp/
 └── README.md
 ```

-This directory contains a `CMakeLists.txt`, which can be selected to open as a 
+This directory contains a `CMakeLists.txt`, which can be selected to open as a
 project within your preferred IDE. From there, all nested examples can be built,
 debugged, and ran.

-Some of the more recent projects in this repository requires the latest CMake LTS. 
+Some of the more recent projects in this repository requires the latest CMake LTS.
 To install `cmake` LTS with `apt` we can follow [official instructions from kitware](https://apt.kitware.com/)
 Alternatively, we can install the LTS with python's `pip`.
 ```bash
@@ -34,7 +34,7 @@ cmake version 3.22.1

 Once cmake is installed, dependencies for all examples can be installed with the command below.
 ```bash
-sudo apt install libsdl2-dev freeglut3-dev 
+sudo apt install libsdl2-dev freeglut3-dev
 ```

 If we build from this directory, we build all C++ projects and examples
@@ -63,7 +63,7 @@ graph-test-object            sdl-test              visitor-test
 graph-test-simple            select-sort
 ```

-We can also build from subdirectories. 
+We can also build from subdirectories.
 To only build projects related to design patterns we build from the `patterns/` subdirectory, for example
 ```bash
 cd /path/to/klips/cpp/patterns
@@ -80,5 +80,5 @@ adapter-test           factory-test  prototype-test  state-test

 If cmake is not being used in a project, it can be built with `g++` manually using
 the commands outlined in `*/.vscode/tasks.json`, or by using VSCode to open the example
-and running the build task. 
+and running the build task.
 Check the header comments in the main source file for the example for instructions.
--- a/cpp/catch2/bin/catch.hpp
+++ b/cpp/catch2/bin/catch.hpp
--- a/cpp/catch2/bin/test_klips
+++ b/cpp/catch2/bin/test_klips
--- a/cpp/qt/CMakeLists.txt
+++ b/cpp/qt/CMakeLists.txt
@@ -11,7 +11,7 @@ cmake_minimum_required(VERSION 3.15)
 project(
    #[[NAME]]   Klips
    VERSION     1.0
-    DESCRIPTION "A root project for several small cpp practice projects"
+    DESCRIPTION "A root project for several small Qt6 practice projects"
    LANGUAGES   CXX
 )

@@ -19,4 +19,6 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 add_compile_options("-Wall")

 add_subdirectory(designer)
+add_subdirectory(designer-plugin)
+add_subdirectory(designer-plugin-collection)
 add_subdirectory(slots)
--- a/cpp/qt/README.md
+++ b/cpp/qt/README.md
@@ -0,0 +1,32 @@
+# Cpp
+
+```bash
+shaunrd0/klips/cpp/qt/
+├── designer                    # Using Qt Designer to create application GUI
+├── designer-plugin             # Adding custom widgets as Qt Designer plugins
+├── designer-plugin-collection  # Adding a collection of widget plugins to Qt Designer
+└── README.md
+```
+
+This directory contains a `CMakeLists.txt`, which can be selected to open as a 
+project within your preferred IDE. From there, all nested examples can be built,
+debugged, and ran.
+
+The plugin examples will need to be installed for Qt Designer integration to work.
+On Linux, Qt Designer looks under `/some/path/to/Qt/Tools/QtCreator/lib/Qt/plugins/designer/`.
+On windows or Mac, this path may differ. Unfortunately I don't have these machines to test for myself.
+
+```bash
+cd klips/cpp/qt/designer-plugin-collection
+mkdir build && cd build
+cmake .. && cmake --build . --target install
+```
+
+After installing the plugin collection example above, we can open Qt Creator and navigate to the Designer.
+We should see the custom collection is available within the Designer, and the contents of the widgets render correctly in the application view.
+
+
+![side-panel-view.png](side-panel-view.png)
+
+
+![plugin-render-view.png](plugin-render-view.png)
--- a/cpp/qt/designer-plugin-collection/CMakeLists.txt
+++ b/cpp/qt/designer-plugin-collection/CMakeLists.txt
@@ -0,0 +1,110 @@
+################################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Example of making a collection of widget plugins for Qt Designer    ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+
+cmake_minimum_required(VERSION 3.15)
+
+project(
+    #[[NAME]]       DesignerPluginCollection
+    VERSION         1.0
+    DESCRIPTION     "Example of a widget plugin collection for Qt Designer"
+    LANGUAGES       CXX
+)
+
+include(GenerateExportHeader)
+
+add_compile_options(-Wall)
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+set(CMAKE_AUTOUIC ON)
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+set(CMAKE_SHARED_MODULE_PREFIX "")
+
+set(QT_DIR "$ENV{HOME}/Code/Clones/Qt/" CACHE PATH "Path to Qt6")
+# Qt Designer will look in different locations if WIN / Unix.
+# These paths are for using Qt Designer integrated within Qt Creator.
+# Standalone Qt Designer may use different paths.
+if (WIN32)
+    set(QT_PLUGIN_INSTALL_DIR
+        "${QT_DIR}/Tools/QtCreator/bin/plugins/designer"
+    )
+    # This path may be different on windows. I have not tested this.
+    set(QT_PLUGIN_LIBRARY_DIR
+        "${QT_DIR}/Tools/QtCreator/lib/Qt/lib"
+    )
+else()
+    set(QT_PLUGIN_INSTALL_DIR
+        "${QT_DIR}/Tools/QtCreator/lib/Qt/plugins/designer"
+    )
+    set(QT_PLUGIN_LIBRARY_DIR
+        "${QT_DIR}/Tools/QtCreator/lib/Qt/lib"
+    )
+endif()
+# This should be set to your Qt6 installation directory.
+set(QT_INSTALL_DIR "${QT_DIR}/6.3.1/gcc_64/" CACHE PATH "Path to Qt6 install")
+list(APPEND CMAKE_PREFIX_PATH "${QT_INSTALL_DIR}")
+
+find_package(Qt6 REQUIRED COMPONENTS UiPlugin Core Gui Widgets)
+
+# Creating a library with two plugins for the collection.
+qt_add_library(widget-plugin-library
+    textview.cpp textview.h
+    widgetplugin.cpp widgetplugin.h
+)
+target_sources(widget-plugin-library PRIVATE
+    textview.cpp textview.h
+    treeview.cpp treeview.h
+    widgetplugin.cpp widgetplugin.h
+)
+set_target_properties(widget-plugin-library PROPERTIES
+    WIN32_EXECUTABLE TRUE
+    MACOSX_BUNDLE TRUE
+)
+target_link_libraries(widget-plugin-library
+    PUBLIC Qt::UiPlugin Qt::Core Qt::Gui Qt::Widgets
+)
+
+install(TARGETS widget-plugin-library
+    RUNTIME DESTINATION "${QT_PLUGIN_LIBRARY_DIR}"
+    BUNDLE DESTINATION "${QT_PLUGIN_LIBRARY_DIR}"
+    LIBRARY DESTINATION "${QT_PLUGIN_LIBRARY_DIR}"
+)
+
+generate_export_header(widget-plugin-library)
+
+# Creating the collection
+
+qt_add_library(widget-plugin-collection
+    widgetplugincollection.cpp widgetplugincollection.h
+)
+target_link_libraries(widget-plugin-collection
+    Qt6::Widgets Qt6::UiPlugin widget-plugin-library
+)
+install(TARGETS widget-plugin-collection
+    RUNTIME DESTINATION "${QT_PLUGIN_INSTALL_DIR}"
+    BUNDLE DESTINATION "${QT_PLUGIN_INSTALL_DIR}"
+    LIBRARY DESTINATION "${QT_PLUGIN_INSTALL_DIR}"
+)
+
+# Application that will use the widget plugin
+
+set(APP_DIR ${CMAKE_CURRENT_SOURCE_DIR})
+configure_file("${CMAKE_CURRENT_SOURCE_DIR}/app-dir.h.in"
+    "${CMAKE_CURRENT_SOURCE_DIR}/app-dir.h"
+    @ONLY
+)
+
+qt_add_executable(widget-app
+    widgetapp.cpp widgetapp.h widgetapp.ui
+    main.cpp
+)
+target_link_libraries(widget-app
+    PRIVATE Qt::Widgets widget-plugin-library
+)
--- a/cpp/qt/designer-plugin-collection/app-dir.h
+++ b/cpp/qt/designer-plugin-collection/app-dir.h
@@ -0,0 +1,6 @@
+#ifndef APPDIR_H_IN
+#define APPDIR_H_IN
+
+#define APP_DIR "/home/kapper/Code/klips/cpp/qt/designer-plugin-collection"
+
+#endif // APPDIR_H_IN
--- a/cpp/qt/designer-plugin-collection/app-dir.h.in
+++ b/cpp/qt/designer-plugin-collection/app-dir.h.in
@@ -0,0 +1,6 @@
+#ifndef APPDIR_H_IN
+#define APPDIR_H_IN
+
+#define APP_DIR "@APP_DIR@"
+
+#endif // APPDIR_H_IN
--- a/cpp/qt/designer-plugin-collection/main.cpp
+++ b/cpp/qt/designer-plugin-collection/main.cpp
@@ -0,0 +1,18 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Main driver fprogram for practice using signals and slots in Qt     ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "widgetapp.h"
+#include <QApplication>
+
+int main(int argc, char *argv[]) {
+  QApplication app(argc, argv);
+  WidgetApp widgetApp;
+  widgetApp.show();
+  return app.exec();
+}
--- a/cpp/qt/designer-plugin-collection/textview.cpp
+++ b/cpp/qt/designer-plugin-collection/textview.cpp
@@ -0,0 +1,10 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Text viewer for signals and slots examples                          ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "textview.h"
--- a/cpp/qt/designer-plugin-collection/textview.h
+++ b/cpp/qt/designer-plugin-collection/textview.h
@@ -0,0 +1,44 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Text viewer for signals and slots examples                          ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#ifndef KLIPS_TEXTVIEW_H
+#define KLIPS_TEXTVIEW_H
+
+#include "widget-plugin-library_export.h"
+#include <QPlainTextEdit>
+
+class WIDGET_PLUGIN_LIBRARY_EXPORT TextView : public QPlainTextEdit {
+  Q_OBJECT
+
+public:
+  explicit TextView(QWidget *parent = nullptr) : QPlainTextEdit(parent) {
+    appendPlainText("This is an example of a custom QTextView widget.");
+  }
+
+  ~TextView() = default;
+
+  QString includeFile() const { return QStringLiteral("text-view.h"); };
+public:
+signals:
+  void sendTest();
+
+private:
+signals:
+  void sentTestPrivate();
+
+public slots:
+  void test() { appendPlainText("Test signal received by TextView."); }
+
+  void testArgs(const QString &message) { appendPlainText(message); }
+
+private slots:
+  void testPrivate() {}
+};
+
+#endif // KLIPS_TEXTVIEW_H
--- a/cpp/qt/designer-plugin-collection/treeview.cpp
+++ b/cpp/qt/designer-plugin-collection/treeview.cpp
@@ -0,0 +1,10 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Tree viewer                                                         ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "treeview.h"
--- a/cpp/qt/designer-plugin-collection/treeview.h
+++ b/cpp/qt/designer-plugin-collection/treeview.h
@@ -0,0 +1,36 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Tree viewer                                                         ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#ifndef KLIPS_TREEVIEW_H
+#define KLIPS_TREEVIEW_H
+
+#include "widget-plugin-library_export.h"
+#include <app-dir.h>
+
+#include <QFileSystemModel>
+#include <QSortFilterProxyModel>
+#include <QTreeView>
+
+class WIDGET_PLUGIN_LIBRARY_EXPORT TreeView : public QTreeView {
+  Q_OBJECT
+
+public:
+  explicit TreeView(QWidget *parent = nullptr) : QTreeView(parent) {
+    QFileSystemModel *model = new QFileSystemModel;
+    QSortFilterProxyModel *proxy = new QSortFilterProxyModel(this);
+    QModelIndex rootModelIndex = model->setRootPath(APP_DIR);
+    proxy->setSourceModel(model);
+    setModel(proxy);
+    setRootIndex(proxy->mapFromSource(rootModelIndex));
+  }
+
+  ~TreeView() = default;
+};
+
+#endif // KLIPS_TREEVIEW_H
--- a/cpp/qt/designer-plugin-collection/widgetapp.cpp
+++ b/cpp/qt/designer-plugin-collection/widgetapp.cpp
@@ -0,0 +1,15 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Application that uses widget from the collection                    ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "widgetapp.h"
+
+WidgetApp::WidgetApp(QWidget *parent) : QMainWindow(parent) {
+  m_widgetApp = new Ui::MainWindow;
+  m_widgetApp->setupUi(this);
+}
--- a/cpp/qt/designer-plugin-collection/widgetapp.h
+++ b/cpp/qt/designer-plugin-collection/widgetapp.h
@@ -0,0 +1,37 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Application that uses a custom Qt Designer widget plugin            ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#ifndef KLIPS_WIDGETAPP_H
+#define KLIPS_WIDGETAPP_H
+
+#include <QDockWidget>
+#include <QMainWindow>
+#include <QPlainTextEdit>
+#include <QVBoxLayout>
+#include <QWidget>
+
+#include "ui_widgetapp.h"
+
+class WidgetApp : public QMainWindow {
+  Q_OBJECT
+
+public:
+  explicit WidgetApp(QWidget *parent = nullptr);
+  ~WidgetApp() = default;
+
+  Ui::MainWindow * m_widgetApp;
+public:
+signals:
+  void sendTest();
+
+public slots:
+  void test(){};
+};
+
+#endif // KLIPS_WIDGETAPP_H
--- a/cpp/qt/designer-plugin-collection/widgetapp.ui
+++ b/cpp/qt/designer-plugin-collection/widgetapp.ui
@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <property name="enabled">
+    <bool>true</bool>
+   </property>
+   <property name="sizePolicy">
+    <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+     <horstretch>0</horstretch>
+     <verstretch>0</verstretch>
+    </sizepolicy>
+   </property>
+   <layout class="QHBoxLayout" name="horizontalLayout_9">
+    <item>
+     <widget class="TextView" name="text-view_4" native="true"/>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>800</width>
+     <height>22</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menuFile">
+    <property name="title">
+     <string>File</string>
+    </property>
+    <addaction name="actionOption1"/>
+    <addaction name="actionOption2"/>
+    <addaction name="separator"/>
+    <addaction name="actionCategory_2"/>
+   </widget>
+   <widget class="QMenu" name="menuEdit">
+    <property name="title">
+     <string>Edit</string>
+    </property>
+   </widget>
+   <widget class="QMenu" name="menuHelp">
+    <property name="title">
+     <string>Help</string>
+    </property>
+   </widget>
+   <addaction name="menuFile"/>
+   <addaction name="menuEdit"/>
+   <addaction name="menuHelp"/>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+  <widget class="QDockWidget" name="dockWidget_5">
+   <attribute name="dockWidgetArea">
+    <number>1</number>
+   </attribute>
+   <widget class="QWidget" name="dockWidgetContents_8">
+    <layout class="QHBoxLayout" name="horizontalLayout_10">
+     <item>
+      <widget class="TreeView" name="tree-view"/>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+  <action name="actionOption1">
+   <property name="text">
+    <string>Option1</string>
+   </property>
+  </action>
+  <action name="actionOption2">
+   <property name="text">
+    <string>Option2</string>
+   </property>
+  </action>
+  <action name="actionCategory_2">
+   <property name="text">
+    <string>Section 2</string>
+   </property>
+  </action>
+ </widget>
+ <customwidgets>
+  <customwidget>
+   <class>TreeView</class>
+   <extends>QWidget</extends>
+   <header>treeview.h</header>
+  </customwidget>
+  <customwidget>
+   <class>TextView</class>
+   <extends>QWidget</extends>
+   <header>textview.h</header>
+  </customwidget>
+ </customwidgets>
+ <resources/>
+ <connections/>
+</ui>
--- a/cpp/qt/designer-plugin-collection/widgetplugin.cpp
+++ b/cpp/qt/designer-plugin-collection/widgetplugin.cpp
@@ -0,0 +1,52 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Example of a generic Qt Designer widget plugin                      ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "widgetplugin.h"
+#include "textview.h"
+
+#include <QtPlugin>
+#include <utility>
+
+WidgetPlugin::WidgetPlugin(QString group, QString name,
+                           WidgetPlugin::Factory factory)
+    : m_group(std::move(group)), m_name(std::move(name)),
+      m_includeFile(name + ".h"), m_factory(std::move(factory)) {}
+
+WidgetPlugin::WidgetPlugin(QString group, QString name, QString include,
+                           WidgetPlugin::Factory factory)
+    : m_group(std::move(group)), m_name(std::move(name)),
+      m_includeFile(std::move(include)), m_factory(std::move(factory)) {}
+
+QString WidgetPlugin::toolTip() const { return {}; }
+
+QString WidgetPlugin::whatsThis() const { return {}; }
+
+QIcon WidgetPlugin::icon() const { return {}; }
+
+bool WidgetPlugin::isContainer() const { return false; }
+
+QString WidgetPlugin::group() const { return m_group; }
+
+QString WidgetPlugin::name() const { return m_name; }
+
+// TODO: The generated UI headers do not use this member appropriately.
+QString WidgetPlugin::includeFile() const { return m_includeFile; }
+
+QWidget *WidgetPlugin::createWidget(QWidget *parent) {
+  return m_factory(parent);
+}
+
+bool WidgetPlugin::isInitialized() const { return m_initialized; }
+
+void WidgetPlugin::initialize(QDesignerFormEditorInterface *) {
+  if (m_initialized)
+    return;
+
+  m_initialized = true;
+}
--- a/cpp/qt/designer-plugin-collection/widgetplugin.h
+++ b/cpp/qt/designer-plugin-collection/widgetplugin.h
@@ -0,0 +1,52 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Example Qt Designer widget plugin                                   ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#ifndef KLIPS_WIDGETPLUGIN_H
+#define KLIPS_WIDGETPLUGIN_H
+
+#include <QDesignerCustomWidgetInterface>
+
+class WidgetPlugin : public QObject, public QDesignerCustomWidgetInterface {
+  Q_OBJECT
+  Q_PLUGIN_METADATA(IID "com.Klips.WidgetPlugin")
+  Q_INTERFACES(QDesignerCustomWidgetInterface)
+
+  using Factory = std::function<QWidget *(QWidget *)>;
+
+public:
+  WidgetPlugin(QString group, QString name, Factory factory);
+  WidgetPlugin(QString group, QString name, QString include, Factory factory);
+
+  explicit WidgetPlugin(QObject *parent = nullptr) : QObject(parent) {}
+
+  ~WidgetPlugin() = default;
+
+public:
+  [[nodiscard]] QString group() const override;
+  [[nodiscard]] QString name() const override;
+  [[nodiscard]] QString includeFile() const override;
+  QWidget *createWidget(QWidget *parent) override;
+
+  [[nodiscard]] QString toolTip() const override;
+  [[nodiscard]] QString whatsThis() const override;
+  [[nodiscard]] QIcon icon() const override;
+  [[nodiscard]] bool isContainer() const override;
+  [[nodiscard]] bool isInitialized() const override;
+  void initialize(QDesignerFormEditorInterface *core) override;
+
+private:
+  bool m_initialized = false;
+
+  QString m_group;
+  QString m_name;
+  QString m_includeFile;
+  Factory m_factory;
+};
+
+#endif // KLIPS_WIDGETPLUGIN_H
--- a/cpp/qt/designer-plugin-collection/widgetplugincollection.cpp
+++ b/cpp/qt/designer-plugin-collection/widgetplugincollection.cpp
@@ -0,0 +1,28 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Collection of widget plugins for Qt Designer                        ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "widgetplugincollection.h"
+#include "textview.h"
+#include "treeview.h"
+#include "widgetplugin.h"
+
+WidgetPluginCollection::WidgetPluginCollection(QObject *parent)
+    : QObject(parent), m_collectionName("Klips Widget Plugin Collection") {
+  m_collection = {
+      new WidgetPlugin(m_collectionName, "Text View Widget", "text-view.h",
+                       [](QWidget *parent) { return new TextView(parent); }),
+      new WidgetPlugin(m_collectionName, "tree-view",
+                       [](QWidget *parent) { return new TreeView(parent); }),
+
+  };
+}
+QList<QDesignerCustomWidgetInterface *>
+WidgetPluginCollection::customWidgets() const {
+  return m_collection;
+}
--- a/cpp/qt/designer-plugin-collection/widgetplugincollection.h
+++ b/cpp/qt/designer-plugin-collection/widgetplugincollection.h
@@ -0,0 +1,22 @@
+
+#ifndef DESIGNERPLUGINCOLLECTION_WIDGETPLUGINCOLLECTION_H
+#define DESIGNERPLUGINCOLLECTION_WIDGETPLUGINCOLLECTION_H
+
+#include <QDesignerCustomWidgetCollectionInterface>
+
+class WidgetPluginCollection : public QObject,
+                               public QDesignerCustomWidgetCollectionInterface {
+  Q_OBJECT
+  Q_PLUGIN_METADATA(IID "com.Klips.WidgetPluginCollection")
+  Q_INTERFACES(QDesignerCustomWidgetCollectionInterface)
+
+public:
+  explicit WidgetPluginCollection(QObject *parent = nullptr);
+  [[nodiscard]] QList<QDesignerCustomWidgetInterface *> customWidgets() const;
+
+private:
+  QList<QDesignerCustomWidgetInterface *> m_collection;
+  QString m_collectionName;
+};
+
+#endif // DESIGNERPLUGINCOLLECTION_WIDGETPLUGINCOLLECTION_H
--- a/cpp/qt/designer-plugin/CMakeLists.txt
+++ b/cpp/qt/designer-plugin/CMakeLists.txt
@@ -0,0 +1,76 @@
+################################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Example of making widget plugins for Qt Designer                    ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+
+cmake_minimum_required(VERSION 3.15)
+
+project(
+    #[[NAME]]       DesignerPlugin
+    VERSION         1.0
+    DESCRIPTION     "Example of a widget plugin for Qt Designer"
+    LANGUAGES       CXX
+)
+
+include(GenerateExportHeader)
+
+add_compile_options(-Wall)
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+set(CMAKE_AUTOUIC ON)
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTORCC ON)
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+set(CMAKE_SHARED_MODULE_PREFIX "")
+
+set(QT_DIR "$ENV{HOME}/Code/Clones/Qt/" CACHE PATH "Path to Qt6")
+# Qt Designer will look in different locations if WIN / Unix.
+if (WIN32)
+    set(QT_PLUGIN_INSTALL_DIR
+        "${QT_DIR}/Tools/QtCreator/bin/plugins/designer"
+    )
+else()
+    set(QT_PLUGIN_INSTALL_DIR
+        "${QT_DIR}/Tools/QtCreator/lib/Qt/plugins/designer"
+    )
+endif()
+# This should be set to your Qt6 installation directory.
+set(QT_INSTALL_DIR "${QT_DIR}/6.3.1/gcc_64/" CACHE PATH "Path to Qt6 install")
+list(APPEND CMAKE_PREFIX_PATH "${QT_INSTALL_DIR}")
+
+find_package(Qt6 REQUIRED COMPONENTS UiPlugin Core Gui Widgets)
+
+# Creating the plugin
+
+qt_add_library(widget-plugin)
+target_sources(widget-plugin PRIVATE
+    text-view.cpp text-view.h
+    widget-plugin.cpp widget-plugin.h
+)
+set_target_properties(widget-plugin PROPERTIES
+    WIN32_EXECUTABLE TRUE
+    MACOSX_BUNDLE TRUE
+)
+target_link_libraries(widget-plugin PUBLIC
+    Qt::UiPlugin Qt::Core Qt::Gui Qt::Widgets
+)
+
+install(TARGETS widget-plugin
+    RUNTIME DESTINATION "${QT_PLUGIN_INSTALL_DIR}"
+    BUNDLE DESTINATION "${QT_PLUGIN_INSTALL_DIR}"
+    LIBRARY DESTINATION "${QT_PLUGIN_INSTALL_DIR}"
+)
+
+# Application that will use the widget plugin
+
+qt_add_executable(widget-app
+    widget-app.cpp widget-app.h widget-app.ui
+    main.cpp
+)
+target_link_libraries(widget-app PRIVATE
+    Qt::Widgets widget-plugin
+)
--- a/cpp/qt/designer-plugin/main.cpp
+++ b/cpp/qt/designer-plugin/main.cpp
@@ -0,0 +1,18 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Main driver fprogram for practice using signals and slots in Qt     ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "widget-app.h"
+#include <QApplication>
+
+int main(int argc, char *argv[]) {
+  QApplication app(argc, argv);
+  WidgetApp widgetApp;
+  widgetApp.show();
+  return app.exec();
+}
--- a/cpp/qt/designer-plugin/text-view.cpp
+++ b/cpp/qt/designer-plugin/text-view.cpp
@@ -0,0 +1,10 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Text viewer for signals and slots examples                          ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "text-view.h"
--- a/cpp/qt/designer-plugin/text-view.h
+++ b/cpp/qt/designer-plugin/text-view.h
@@ -0,0 +1,40 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Text viewer for signals and slots examples                          ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#ifndef KLIPS_TEXTVIEW_H
+#define KLIPS_TEXTVIEW_H
+
+#include <QPlainTextEdit>
+
+class TextView : public QPlainTextEdit {
+  Q_OBJECT
+
+public:
+  explicit TextView(QWidget *parent = nullptr) : QPlainTextEdit(parent) { }
+
+  ~TextView() = default;
+
+public:
+signals:
+  void sendTest();
+
+private:
+signals:
+  void sentTestPrivate();
+
+public slots:
+  void test() { appendPlainText("Test signal received by TextView."); }
+
+  void testArgs(const QString &message) { appendPlainText(message); }
+
+private slots:
+  void testPrivate() {}
+};
+
+#endif // KLIPS_TEXTVIEW_H
--- a/cpp/qt/designer-plugin/widget-app.cpp
+++ b/cpp/qt/designer-plugin/widget-app.cpp
@@ -0,0 +1,16 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Application that uses a custom Qt Designer widget plugin            ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "widget-app.h"
+#include "widget-plugin.h"
+
+WidgetApp::WidgetApp(QWidget *parent) : QMainWindow(parent) {
+  m_ui = new Ui::MainWindow;
+  m_ui->setupUi(this);
+}
--- a/cpp/qt/designer-plugin/widget-app.h
+++ b/cpp/qt/designer-plugin/widget-app.h
@@ -0,0 +1,38 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Application that uses a custom Qt Designer widget plugin            ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#ifndef KLIPS_WIDGETAPP_H
+#define KLIPS_WIDGETAPP_H
+
+#include <QDockWidget>
+#include <QMainWindow>
+#include <QPlainTextEdit>
+#include <QVBoxLayout>
+#include <QWidget>
+
+#include "ui_widget-app.h"
+
+class WidgetApp : public QMainWindow {
+  Q_OBJECT
+
+public:
+  WidgetApp(QWidget *parent = nullptr);
+  ~WidgetApp() = default;
+
+  Ui::MainWindow *m_ui;
+
+public:
+signals:
+  void sendTest();
+
+public slots:
+  void test(){};
+};
+
+#endif // KLIPS_WIDGETAPP_H
--- a/cpp/qt/designer-plugin/widget-app.ui
+++ b/cpp/qt/designer-plugin/widget-app.ui
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QHBoxLayout" name="horizontalLayout"/>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>800</width>
+     <height>22</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
--- a/cpp/qt/designer-plugin/widget-plugin.cpp
+++ b/cpp/qt/designer-plugin/widget-plugin.cpp
@@ -0,0 +1,67 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Example Qt Designer widget plugin                                   ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#include "widget-plugin.h"
+#include "text-view.h"
+
+#include <QtPlugin>
+
+QString WidgetPlugin::toolTip() const
+{
+    return {};
+}
+
+QString WidgetPlugin::whatsThis() const
+{
+    return {};
+}
+
+QIcon WidgetPlugin::icon() const
+{
+    return {};
+}
+
+bool WidgetPlugin::isContainer() const
+{
+    return false;
+}
+
+QString WidgetPlugin::group() const
+{
+    return m_group;
+}
+
+QString WidgetPlugin::name() const
+{
+  return QStringLiteral("KlipsWidgetPlugin");
+}
+
+QString WidgetPlugin::includeFile() const
+{
+  return QStringLiteral("widget-plugin.h");
+}
+
+QWidget *WidgetPlugin::createWidget(QWidget *parent)
+{
+  return new TextView(parent);
+}
+
+bool WidgetPlugin::isInitialized() const
+{
+    return m_initialized;
+}
+
+void WidgetPlugin::initialize(QDesignerFormEditorInterface *)
+{
+
+  if (m_initialized)
+    return;
+
+  m_initialized = true;
+}
--- a/cpp/qt/designer-plugin/widget-plugin.h
+++ b/cpp/qt/designer-plugin/widget-plugin.h
@@ -0,0 +1,45 @@
+/*##############################################################################
+## Author: Shaun Reed                                                         ##
+## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## About: Example Qt Designer widget plugin                                   ##
+##                                                                            ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
+################################################################################
+*/
+
+#ifndef KLIPS_WIDGETPLUGIN_H
+#define KLIPS_WIDGETPLUGIN_H
+
+#include <QtUiPlugin/QDesignerCustomWidgetInterface>
+
+class WidgetPlugin : public QObject, public QDesignerCustomWidgetInterface {
+Q_OBJECT
+Q_PLUGIN_METADATA(IID "com.Klips.WidgetPlugin")
+Q_INTERFACES(QDesignerCustomWidgetInterface)
+
+public:
+  explicit WidgetPlugin(QObject *parent = nullptr) : QObject(parent) {}
+
+  ~WidgetPlugin() = default;
+public:
+  QString group() const override;
+  QString name() const override;
+  QString includeFile() const override;
+  QWidget *createWidget(QWidget *parent) override;
+
+  QString toolTip() const override;
+  QString whatsThis() const override;
+  QIcon icon() const override;
+  bool isContainer() const override;
+  bool isInitialized() const override;
+  void initialize(QDesignerFormEditorInterface *core) override;
+
+private:
+  bool m_initialized = false;
+
+  QString m_group;
+  QString m_name;
+  QString m_includeFile;
+};
+
+#endif // KLIPS_WIDGETPLUGIN_H
--- a/cpp/qt/designer/CMakeLists.txt.user
+++ b/cpp/qt/designer/CMakeLists.txt.user
@@ -1,186 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 8.0.1, 2022-12-17T17:29:08. -->
-<qtcreator>
- <data>
-  <variable>EnvironmentId</variable>
-  <value type="QByteArray">{ce8a8d3d-318d-4c62-a573-71d1755252ce}</value>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.ActiveTarget</variable>
-  <value type="qlonglong">0</value>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.EditorSettings</variable>
-  <valuemap type="QVariantMap">
-   <value type="bool" key="EditorConfiguration.AutoIndent">true</value>
-   <value type="bool" key="EditorConfiguration.AutoSpacesForTabs">false</value>
-   <value type="bool" key="EditorConfiguration.CamelCaseNavigation">true</value>
-   <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.0">
-    <value type="QString" key="language">Cpp</value>
-    <valuemap type="QVariantMap" key="value">
-     <value type="QByteArray" key="CurrentPreferences">CppGlobal</value>
-    </valuemap>
-   </valuemap>
-   <valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.1">
-    <value type="QString" key="language">QmlJS</value>
-    <valuemap type="QVariantMap" key="value">
-     <value type="QByteArray" key="CurrentPreferences">QmlJSGlobal</value>
-    </valuemap>
-   </valuemap>
-   <value type="qlonglong" key="EditorConfiguration.CodeStyle.Count">2</value>
-   <value type="QByteArray" key="EditorConfiguration.Codec">UTF-8</value>
-   <value type="bool" key="EditorConfiguration.ConstrainTooltips">false</value>
-   <value type="int" key="EditorConfiguration.IndentSize">4</value>
-   <value type="bool" key="EditorConfiguration.KeyboardTooltips">false</value>
-   <value type="int" key="EditorConfiguration.MarginColumn">80</value>
-   <value type="bool" key="EditorConfiguration.MouseHiding">true</value>
-   <value type="bool" key="EditorConfiguration.MouseNavigation">true</value>
-   <value type="int" key="EditorConfiguration.PaddingMode">1</value>
-   <value type="bool" key="EditorConfiguration.PreferSingleLineComments">false</value>
-   <value type="bool" key="EditorConfiguration.ScrollWheelZooming">true</value>
-   <value type="bool" key="EditorConfiguration.ShowMargin">false</value>
-   <value type="int" key="EditorConfiguration.SmartBackspaceBehavior">0</value>
-   <value type="bool" key="EditorConfiguration.SmartSelectionChanging">true</value>
-   <value type="bool" key="EditorConfiguration.SpacesForTabs">true</value>
-   <value type="int" key="EditorConfiguration.TabKeyBehavior">0</value>
-   <value type="int" key="EditorConfiguration.TabSize">8</value>
-   <value type="bool" key="EditorConfiguration.UseGlobal">true</value>
-   <value type="bool" key="EditorConfiguration.UseIndenter">false</value>
-   <value type="int" key="EditorConfiguration.Utf8BomBehavior">1</value>
-   <value type="bool" key="EditorConfiguration.addFinalNewLine">true</value>
-   <value type="bool" key="EditorConfiguration.cleanIndentation">true</value>
-   <value type="bool" key="EditorConfiguration.cleanWhitespace">true</value>
-   <value type="QString" key="EditorConfiguration.ignoreFileTypes">*.md, *.MD, Makefile</value>
-   <value type="bool" key="EditorConfiguration.inEntireDocument">false</value>
-   <value type="bool" key="EditorConfiguration.skipTrailingWhitespace">true</value>
-  </valuemap>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.PluginSettings</variable>
-  <valuemap type="QVariantMap">
-   <valuemap type="QVariantMap" key="AutoTest.ActiveFrameworks">
-    <value type="bool" key="AutoTest.Framework.Boost">true</value>
-    <value type="bool" key="AutoTest.Framework.CTest">false</value>
-    <value type="bool" key="AutoTest.Framework.Catch">true</value>
-    <value type="bool" key="AutoTest.Framework.GTest">true</value>
-    <value type="bool" key="AutoTest.Framework.QtQuickTest">true</value>
-    <value type="bool" key="AutoTest.Framework.QtTest">true</value>
-   </valuemap>
-   <valuemap type="QVariantMap" key="AutoTest.CheckStates"/>
-   <value type="int" key="AutoTest.RunAfterBuild">0</value>
-   <value type="bool" key="AutoTest.UseGlobal">true</value>
-   <valuemap type="QVariantMap" key="ClangTools">
-    <value type="bool" key="ClangTools.AnalyzeOpenFiles">true</value>
-    <value type="bool" key="ClangTools.BuildBeforeAnalysis">true</value>
-    <value type="QString" key="ClangTools.DiagnosticConfig">Builtin.DefaultTidyAndClazy</value>
-    <value type="int" key="ClangTools.ParallelJobs">4</value>
-    <valuelist type="QVariantList" key="ClangTools.SelectedDirs"/>
-    <valuelist type="QVariantList" key="ClangTools.SelectedFiles"/>
-    <valuelist type="QVariantList" key="ClangTools.SuppressedDiagnostics"/>
-    <value type="bool" key="ClangTools.UseGlobalSettings">true</value>
-   </valuemap>
-  </valuemap>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.Target.0</variable>
-  <valuemap type="QVariantMap">
-   <value type="QString" key="DeviceType">Desktop</value>
-   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Qt 6.3.1 GCC 64bit</value>
-   <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Qt 6.3.1 GCC 64bit</value>
-   <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">{6ade7dd7-47b1-42f6-b09c-570bb7fbeb1c}</value>
-   <value type="qlonglong" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
-   <value type="qlonglong" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
-   <value type="qlonglong" key="ProjectExplorer.Target.ActiveRunConfiguration">0</value>
-   <valuemap type="QVariantMap" key="ProjectExplorer.Target.BuildConfiguration.0">
-    <value type="QString" key="CMake.Build.Type">Debug</value>
-    <value type="QString" key="CMake.Initial.Parameters">-DCMAKE_GENERATOR:STRING=Ninja
-DCMAKE_BUILD_TYPE:STRING=Debug
-DCMAKE_PROJECT_INCLUDE_BEFORE:FILEPATH=%{IDE:ResourcePath}/package-manager/auto-setup.cmake
-DQT_QMAKE_EXECUTABLE:FILEPATH=%{Qt:qmakeExecutable}
-DCMAKE_PREFIX_PATH:PATH=%{Qt:QT_INSTALL_PREFIX}
-DCMAKE_C_COMPILER:FILEPATH=%{Compiler:Executable:C}
-DCMAKE_CXX_COMPILER:FILEPATH=%{Compiler:Executable:Cxx}
-DCMAKE_CXX_FLAGS_INIT:STRING=%{Qt:QML_DEBUG_FLAG}</value>
-    <value type="QString" key="CMake.Source.Directory">/home/kapper/Code/klips/cpp/qt/designer</value>
-    <value type="QString" key="ProjectExplorer.BuildConfiguration.BuildDirectory">/home/kapper/Code/klips/cpp/qt/designer/cmake-build-debug</value>
-    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
-     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
-      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.BuildTargets">
-       <value type="QString">all</value>
-      </valuelist>
-      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Build</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.MakeStep</value>
-     </valuemap>
-     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Build</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Build</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Build</value>
-    </valuemap>
-    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.1">
-     <valuemap type="QVariantMap" key="ProjectExplorer.BuildStepList.Step.0">
-      <valuelist type="QVariantList" key="CMakeProjectManager.MakeStep.BuildTargets">
-       <value type="QString">clean</value>
-      </valuelist>
-      <value type="bool" key="ProjectExplorer.BuildStep.Enabled">true</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Build</value>
-      <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.MakeStep</value>
-     </valuemap>
-     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">1</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Clean</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Clean</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
-    </valuemap>
-    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
-    <value type="bool" key="ProjectExplorer.BuildConfiguration.ClearSystemEnvironment">false</value>
-    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.CustomParsers"/>
-    <value type="bool" key="ProjectExplorer.BuildConfiguration.ParseStandardOutput">false</value>
-    <valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Debug</value>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">CMakeProjectManager.CMakeBuildConfiguration</value>
-   </valuemap>
-   <value type="qlonglong" key="ProjectExplorer.Target.BuildConfigurationCount">1</value>
-   <valuemap type="QVariantMap" key="ProjectExplorer.Target.DeployConfiguration.0">
-    <valuemap type="QVariantMap" key="ProjectExplorer.BuildConfiguration.BuildStepList.0">
-     <value type="qlonglong" key="ProjectExplorer.BuildStepList.StepsCount">0</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Deploy</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Deploy</value>
-     <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
-    </valuemap>
-    <value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
-    <valuemap type="QVariantMap" key="ProjectExplorer.DeployConfiguration.CustomData"/>
-    <value type="bool" key="ProjectExplorer.DeployConfiguration.CustomDataEnabled">false</value>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.DefaultDeployConfiguration</value>
-   </valuemap>
-   <value type="qlonglong" key="ProjectExplorer.Target.DeployConfigurationCount">1</value>
-   <valuemap type="QVariantMap" key="ProjectExplorer.Target.RunConfiguration.0">
-    <value type="bool" key="Analyzer.Perf.Settings.UseGlobalSettings">true</value>
-    <value type="bool" key="Analyzer.QmlProfiler.Settings.UseGlobalSettings">true</value>
-    <value type="bool" key="Analyzer.Valgrind.Settings.UseGlobalSettings">true</value>
-    <valuelist type="QVariantList" key="CustomOutputParsers"/>
-    <value type="int" key="PE.EnvironmentAspect.Base">2</value>
-    <valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
-    <value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.CustomExecutableRunConfiguration</value>
-    <value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey"></value>
-    <value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
-    <value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
-    <value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
-    <value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
-   </valuemap>
-   <value type="qlonglong" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
-  </valuemap>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.TargetCount</variable>
-  <value type="qlonglong">1</value>
- </data>
- <data>
-  <variable>ProjectExplorer.Project.Updater.FileVersion</variable>
-  <value type="int">22</value>
- </data>
- <data>
-  <variable>Version</variable>
-  <value type="int">22</value>
- </data>
-</qtcreator>
--- a/cpp/qt/plugin-render-view.png
+++ b/cpp/qt/plugin-render-view.png
--- a/cpp/qt/side-panel-view.png
+++ b/cpp/qt/side-panel-view.png
--- a/cpp/qt/slots/text-view.h
+++ b/cpp/qt/slots/text-view.h
@@ -22,7 +22,7 @@ public:

 public:
 signals:
-  void sendTest();
+  void sendTest()QWidget;

 private:
 signals:
--- a/dotnet/README.md
+++ b/dotnet/README.md
@@ -1,4 +1,4 @@
-# Dotnet
+# dotnet

 ```bash
 shaunrd0/klips/dotnet/
--- a/esp/cpp/01_led-button/01_led-button.ino
+++ b/esp/cpp/01_led-button/01_led-button.ino
@@ -0,0 +1,38 @@
+// set pin numbers
+const int buttonPin = 4;  // the number of the pushbutton pin
+const int ledPin =  5;    // the number of the LED pin
+
+// variable for storing the pushbutton status
+int buttonState = 0;
+
+bool light_on = false;
+bool handled = false;
+
+void setup() {
+  Serial.begin(115200);
+  // initialize the pushbutton pin as an input
+  pinMode(buttonPin, INPUT);
+  // initialize the LED pin as an output
+  pinMode(ledPin, OUTPUT);
+}
+
+void loop() {
+  // read the state of the pushbutton value
+  buttonState = digitalRead(buttonPin);
+  // check if the pushbutton is pressed.
+  if (buttonState == HIGH) {
+    if (!handled) {
+      Serial.println("Handling button pressed.");
+      light_on = !light_on;
+      handled = true;
+      digitalWrite(ledPin, light_on ? HIGH : LOW);
+    }
+    // turn LED on
+  } else {
+    if (handled) {
+      Serial.println("Reset button handled state.");
+      handled = false;
+
+    }
+  }
+}
--- a/esp/cpp/01_led-button/README.md
+++ b/esp/cpp/01_led-button/README.md
@@ -0,0 +1,9 @@
+# 01_led-button
+
+This example is largely adapted from those in [ESP32-basic-starter-kit.pdf](./ESP32-basic-starter-kit.pdf).
+
+The APIs in the original examples paired with this PDF have changed, and I decided to do some different things with the code and/or circuits, but the original code can be [found here](https://www.dropbox.com/scl/fo/6znlij3eb23ih4jxcpv2w/AKvB1t9CCUgoVRVtGen8Yrw?rlkey=z84anl0hs940qf9fpl7l8q8q2&e=1&dl=0).
+
+![schematic](./schematic.png)
+
+Simple LED controlled by an on-board button.
--- a/esp/cpp/01_led-button/schematic.png
+++ b/esp/cpp/01_led-button/schematic.png
--- a/esp/cpp/02_led-button-web/02_led-button-web.ino
+++ b/esp/cpp/02_led-button-web/02_led-button-web.ino
@@ -0,0 +1,183 @@
+#include <WiFi.h>
+
+//
+// Web server project globals
+
+// Replace with your network credentials
+const char* ssid = "network-name";
+const char* password = "password";
+
+WiFiServer server(80);
+
+// Variable to store the HTTP request
+String header;
+
+// Current time
+unsigned long currentTime = millis();
+// Previous time
+unsigned long previousTime = 0;
+// Define timeout time in milliseconds (example: 2000ms = 2s)
+const long timeoutTime = 2000;
+
+//
+// Button / light project globals
+
+// set pin numbers
+const int buttonPin = 4;  // the number of the pushbutton pin
+const int ledPin =  5;    // the number of the LED pin
+
+// variable for storing the pushbutton status
+int buttonState = 0;
+
+bool light_on = false;
+bool handled = false;
+
+void setup() {
+  Serial.begin(115200);
+  // initialize the pushbutton pin as an input
+  pinMode(buttonPin, INPUT);
+  // initialize the LED pin as an output
+  pinMode(ledPin, OUTPUT);
+
+  // wait for the Serial Monitor to be open
+  while (!Serial) {
+    delay(100);
+  }
+
+  // Connect to Wi-Fi network with SSID and password
+  Serial.print("Connecting to ");
+  Serial.println(ssid);
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  // Print local IP address and start web server
+  Serial.println("");
+  Serial.println("WiFi connected.");
+  Serial.println("Web Server IP address: ");
+  Serial.println(WiFi.localIP());
+  server.begin();
+}
+
+// Handles the on-board button press.
+void handleButtonPress() {
+  // read the state of the pushbutton value
+  buttonState = digitalRead(buttonPin);
+  // check if the pushbutton is pressed.
+  if (buttonState == HIGH) {
+    if (!handled) {
+      Serial.println("Handling button pressed.");
+      light_on = !light_on;
+      handled = true;
+      digitalWrite(ledPin, light_on ? HIGH : LOW);
+    }
+    // turn LED on
+  } else {
+    if (handled) {
+      Serial.println("Reset button handled state.");
+      handled = false;
+    }
+  }
+}
+
+void displayPinState(WiFiClient client, int gpio_pin, bool state) {
+  // Display current state, and ON/OFF buttons for GPIO <gpio_pin>
+  client.println(String("<p>GPIO ") + String(gpio_pin) + String(" - Current State ") + String(state ? "ON" : "OFF") + String("</p>"));
+  // If the output state is off, it displays the ON button
+  if (state) {
+    client.println(String("<p><a href=\"/") + String(gpio_pin) + String("/off\"><button class=\"button button2\">OFF</button></a></p>"));
+  } else {
+    client.println(String("<p><a href=\"/") + String(gpio_pin) + String("/on\"><button class=\"button\">ON</button></a></p>"));
+  }
+}
+
+void handleStateChange(WiFiClient client, int gpio_pin) {
+  if (header.indexOf(String("GET /") + String(gpio_pin) + String("/on")) >= 0) {
+    Serial.println(String("GPIO ") + String(gpio_pin) + String(" on"));
+    light_on = true;
+    digitalWrite(gpio_pin, HIGH);
+  } else if (header.indexOf(String("GET /") + String(gpio_pin) + String("/off")) >= 0) {
+    Serial.println(String("GPIO ") + String(gpio_pin) + String(" off"));
+    light_on = false;
+    digitalWrite(gpio_pin, LOW);
+  }
+}
+
+void loop() {
+  WiFiClient client = server.available();   // Listen for incoming clients
+
+  handleButtonPress();
+
+  if (client) {                             // If a new client connects,
+    currentTime = millis();
+    previousTime = currentTime;
+    Serial.println("New Client.");          // print a message out in the serial port
+    Serial.println("Web Server IP address: ");
+    Serial.println(WiFi.localIP());
+
+    String currentLine = "";                // make a String to hold incoming data from the client
+    while (client.connected() && currentTime - previousTime <= timeoutTime) {  // loop while the client's connected
+      // Also handle the button press in this loop to not miss events.
+      handleButtonPress();
+
+      currentTime = millis();
+      if (client.available()) {             // if there's bytes to read from the client,
+        char c = client.read();             // read a byte, then
+        Serial.write(c);                    // print it out the serial monitor
+        header += c;
+        if (c == '\n') {                    // if the byte is a newline character
+          // if the current line is blank, you got two newline characters in a row.
+          // that's the end of the client HTTP request, so send a response:
+          if (currentLine.length() == 0) {
+            // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
+            // and a content-type so the client knows what's coming, then a blank line:
+            client.println("HTTP/1.1 200 OK");
+            client.println("Content-type:text/html");
+            client.println("Connection: close");
+            client.println();
+
+            // turns the GPIOs on and off
+            // Display the HTML web page
+            client.println("<!DOCTYPE html><html>");
+            client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
+            client.println("<link rel=\"icon\" href=\"data:,\">");
+            // CSS to style the on/off buttons
+            // Feel free to change the background-color and font-size attributes to fit your preferences
+            client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
+            client.println(".button { background-color: #4CAF50; border: none; color: white; padding: 16px 40px;");
+            client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
+            client.println(".button2 {background-color: #555555;}</style></head>");
+
+            //
+            // Web Page Heading
+            client.println("<body><h1>ESP32 Web Server</h1>");
+            //
+            // Web Page Body Contents
+
+            // Button Controls
+            displayPinState(client, ledPin, light_on);
+
+            //
+            // Close Web Page Body / Heading
+            client.println("</body></html>");
+            // The HTTP response ends with another blank line
+            client.println();
+            // Break out of the while loop
+            break;
+          } else { // if you got a newline, then clear currentLine
+            currentLine = "";
+          }
+        } else if (c != '\r') {  // if you got anything else but a carriage return character,
+          currentLine += c;      // add it to the end of the currentLine
+        }
+      }
+    }
+    // Clear the header variable
+    header = "";
+    // Close the connection
+    client.stop();
+    Serial.println("Client disconnected.");
+    Serial.println("");
+  }
+}
--- a/esp/cpp/02_led-button-web/README.md
+++ b/esp/cpp/02_led-button-web/README.md
@@ -0,0 +1,15 @@
+# 02_led-button-web
+
+This example is largely adapted from those in [ESP32-basic-starter-kit.pdf](./ESP32-basic-starter-kit.pdf).
+
+The APIs in the original examples paired with this PDF have changed, and I decided to do some different things with the code and/or circuits, but the original code can be [found here](https://www.dropbox.com/scl/fo/6znlij3eb23ih4jxcpv2w/AKvB1t9CCUgoVRVtGen8Yrw?rlkey=z84anl0hs940qf9fpl7l8q8q2&e=1&dl=0).
+
+![schematic](./schematic.png)
+
+This example uses the same schematic as [01_led-button](../01_led-button/).
+
+The only difference is that you can also control the button through a web browser from any device connected to your local network.
+
+This example was adapted from the example code in the [Arduino ESP32 API reference](https://docs.espressif.com/projects/arduino-esp32/en/latest/api/wifi.html#wi-fi-ap-example).
+
+![screenshot](./screenshot.png)
--- a/esp/cpp/02_led-button-web/schematic.png
+++ b/esp/cpp/02_led-button-web/schematic.png
--- a/esp/cpp/02_led-button-web/screenshot.png
+++ b/esp/cpp/02_led-button-web/screenshot.png
--- a/esp/cpp/03_temp-humidity-web/03_temp-humidity-web.ino
+++ b/esp/cpp/03_temp-humidity-web/03_temp-humidity-web.ino
@@ -0,0 +1,161 @@
+// Import required libraries
+
+#include "WiFi.h"
+#include "ESPAsyncWebServer.h"
+#include <Adafruit_Sensor.h>
+#include <DHT.h>
+
+// Replace with your network credentials
+const char* ssid = "network-name";
+const char* password = "password";
+
+#define DHTPIN 4     // Digital pin connected to the DHT sensor
+
+// Uncomment the type of sensor in use:
+#define DHTTYPE    DHT11     // DHT 11
+//#define DHTTYPE    DHT22     // DHT 22 (AM2302)
+//#define DHTTYPE    DHT21     // DHT 21 (AM2301)
+
+DHT dht(DHTPIN, DHTTYPE);
+
+// Create AsyncWebServer object on port 80
+AsyncWebServer server(80);
+
+String readDHTTemperature() {
+  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
+  // Read temperature as Celsius (the default)
+  float t = dht.readTemperature();
+  // Read temperature as Fahrenheit (isFahrenheit = true)
+  //float t = dht.readTemperature(true);
+  // Check if any reads failed and exit early (to try again).
+  if (isnan(t)) {
+    Serial.println("Failed to read from DHT sensor!");
+    return "--";
+  }
+  else {
+    Serial.println(t);
+    return String(t);
+  }
+}
+
+String readDHTHumidity() {
+  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
+  float h = dht.readHumidity();
+  if (isnan(h)) {
+    Serial.println("Failed to read from DHT sensor!");
+    return "--";
+  }
+  else {
+    Serial.println(h);
+    return String(h);
+  }
+}
+
+const char index_html[] PROGMEM = R"rawliteral(
+<!DOCTYPE HTML><html>
+<head>
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.2/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">
+  <style>
+    html {
+     font-family: Arial;
+     display: inline-block;
+     margin: 0px auto;
+     text-align: center;
+    }
+    h2 { font-size: 3.0rem; }
+    p { font-size: 3.0rem; }
+    .units { font-size: 1.2rem; }
+    .dht-labels{
+      font-size: 1.5rem;
+      vertical-align:middle;
+      padding-bottom: 15px;
+    }
+  </style>
+</head>
+<body>
+  <h2>ESP32 DHT Server</h2>
+  <p>
+    <i class="fas fa-thermometer-half" style="color:#059e8a;"></i>
+    <span class="dht-labels">Temperature</span>
+    <span id="temperature">%TEMPERATURE%</span>
+    <sup class="units">&deg;C</sup>
+  </p>
+  <p>
+    <i class="fas fa-tint" style="color:#00add6;"></i>
+    <span class="dht-labels">Humidity</span>
+    <span id="humidity">%HUMIDITY%</span>
+    <sup class="units">&percnt;</sup>
+  </p>
+</body>
+<script>
+setInterval(function ( ) {
+  var xhttp = new XMLHttpRequest();
+  xhttp.onreadystatechange = function() {
+    if (this.readyState == 4 && this.status == 200) {
+      document.getElementById("temperature").innerHTML = this.responseText;
+    }
+  };
+  xhttp.open("GET", "/temperature", true);
+  xhttp.send();
+}, 10000 ) ;
+
+setInterval(function ( ) {
+  var xhttp = new XMLHttpRequest();
+  xhttp.onreadystatechange = function() {
+    if (this.readyState == 4 && this.status == 200) {
+      document.getElementById("humidity").innerHTML = this.responseText;
+    }
+  };
+  xhttp.open("GET", "/humidity", true);
+  xhttp.send();
+}, 10000 ) ;
+</script>
+</html>)rawliteral";
+
+// Replaces placeholder with DHT values
+String processor(const String& var){
+  //Serial.println(var);
+  if(var == "TEMPERATURE"){
+    return readDHTTemperature();
+  }
+  else if(var == "HUMIDITY"){
+    return readDHTHumidity();
+  }
+  return String();
+}
+
+void setup(){
+  // Serial port for debugging purposes
+  Serial.begin(115200);
+
+  dht.begin();
+
+  // Connect to Wi-Fi
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(1000);
+    Serial.println("Connecting to WiFi..");
+  }
+
+  // Print ESP32 Local IP Address
+  Serial.println(WiFi.localIP());
+
+  // Route for root / web page
+  server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
+    request->send_P(200, "text/html", index_html, processor);
+  });
+  server.on("/temperature", HTTP_GET, [](AsyncWebServerRequest *request){
+    request->send_P(200, "text/plain", readDHTTemperature().c_str());
+  });
+  server.on("/humidity", HTTP_GET, [](AsyncWebServerRequest *request){
+    request->send_P(200, "text/plain", readDHTHumidity().c_str());
+  });
+
+  // Start server
+  server.begin();
+}
+
+void loop(){
+
+}
--- a/esp/cpp/03_temp-humidity-web/README.md
+++ b/esp/cpp/03_temp-humidity-web/README.md
@@ -0,0 +1,60 @@
+# 03_temp-humidity-web
+
+This example is largely adapted from those in [ESP32-basic-starter-kit.pdf](./ESP32-basic-starter-kit.pdf).
+
+The APIs in the original examples paired with this PDF have changed, and I decided to do some different things with the code and/or circuits, but the original code can be [found here](https://www.dropbox.com/scl/fo/6znlij3eb23ih4jxcpv2w/AKvB1t9CCUgoVRVtGen8Yrw?rlkey=z84anl0hs940qf9fpl7l8q8q2&e=1&dl=0).
+
+![schematic](./schematic.png)
+
+Temperature and humidity sensor served on a web page within the local network.
+
+![screenshot](./screenshot.png)
+
+## Dependencies
+
+You need to install a couple of libraries for this project:
+
+* The DHT and the Adafruit Unified Sensor Driver libraries to read from the DHT sensor.
+* ESPAsyncWebServer and Async TCP libraries to build the asynchronous web server.
+
+The default Arduino IDE installation will store libraries at `~/Arduino/ibraries` - if this directory doesn't exist, create it.
+
+### Installing DHT Sensor Library
+
+To read from the DHT sensor using Arduino IDE, you need to install the [DHT sensor library](https://github.com/adafruit/DHT-sensor-library).
+
+```bash
+wget -O DHT_sensor.zip https://github.com/adafruit/DHT-sensor-library/archive/master.zip
+unzip DHT_sensor.zip
+mv DHT-sensor-library-master/ ~/Arduino/libraries/DHT_sensor
+```
+
+## Install Adafruit Unified Sensor Driver Library
+
+You also need to install the [Adafruit Unified Sensor Driver library](https://github.com/adafruit/Adafruit_Sensor) to work with the DHT sensor.
+
+```bash
+wget -O Adafruit_sensor.zip https://github.com/adafruit/Adafruit_Sensor/archive/master.zip
+unzip Adafruit_sensor.zip
+mv Adafruit_Sensor-master/ ~/Arduino/libraries/Adafruit_sensor
+```
+
+## Installing ESPAsyncWebServer Library
+
+Follow the next steps to install the [ESPAsyncWebServer library](https://github.com/me-no-dev/ESPAsyncWebServer):
+
+```bash
+wget -O ESPAsyncWebServer.zip https://github.com/me-no-dev/ESPAsyncWebServer/archive/master.zip
+unzip ESPAsyncWebServer.zip
+mv ESPAsyncWebServer-master/ ~/Arduino/libraries/ESPAsyncWebServer
+```
+
+## Installing Async TCP Library
+
+The ESPAsyncWebServer library requires the [AsyncTCP library](https://github.com/me-no-dev/AsyncTCP) to work. Follow the next steps to install that library:
+
+```bash
+wget -O AsyncTCP.zip https://github.com/me-no-dev/AsyncTCP/archive/master.zip
+unzip AsyncTCP.zip
+mv AsyncTCP-master/ ~/Arduino/libraries/AsyncTCP
+```
--- a/esp/cpp/03_temp-humidity-web/schematic.png
+++ b/esp/cpp/03_temp-humidity-web/schematic.png
--- a/esp/cpp/03_temp-humidity-web/screenshot.png
+++ b/esp/cpp/03_temp-humidity-web/screenshot.png
--- a/esp/cpp/04_esp-idf-arduino/.gitignore
+++ b/esp/cpp/04_esp-idf-arduino/.gitignore
@@ -0,0 +1,4 @@
+build
+managed_components
+dependencies.lock
+sdkconfig.old
--- a/esp/cpp/04_esp-idf-arduino/CMakeLists.txt
+++ b/esp/cpp/04_esp-idf-arduino/CMakeLists.txt
@@ -0,0 +1,18 @@
+# For more information about build system see
+# https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/build-system.html
+# The following five lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.26)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+
+project(
+    #[[NAME]]   esp-idf-arduino
+    VERSION     0.1
+    DESCRIPTION "Example ESP-IDF cmake project"
+    LANGUAGES   CXX
+)
+
+# For writing pure cmake components, see the documentation
+# https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-guides/build-system.html#writing-pure-cmake-components
+idf_build_set_property(COMPILE_OPTIONS "-Wno-error" APPEND)
--- a/esp/cpp/04_esp-idf-arduino/README.md
+++ b/esp/cpp/04_esp-idf-arduino/README.md
@@ -0,0 +1,81 @@
+# 04_esp-idf-arduino
+
+There is no schematic for this example, it simply prints some output to the serial monitor at 115200.
+This is more of a build system example for untethering yourself from the Arduino IDE.
+
+To build this example you can run the following commands.
+
+```bash
+# See Dependencies section below for instructions.
+source ~/path/to/esp-idf/export.sh
+
+mkdir build
+cd build
+cmake ..
+make -j $(nproc)
+
+# Flash the example to the ESP.
+make flash
+
+# Check the serial monitor for 'Hello world!' output.
+idf.py monitor -b 115200
+```
+
+To flash to your ESP or access the `idf.py menuconfig` menu from the ESP-IDF you can run the same commands with `make`.
+
+```bash
+make flash
+make menuconfig
+```
+
+If Ninja is preferred:
+
+```bash
+mkdir build
+cd build
+cmake .. -G Nina
+ninja
+```
+
+## Dependencies
+
+Install the [ESP-IDF](https://github.com/espressif/esp-idf?tab=readme-ov-file#setup-build-environment)
+
+```bash
+# https://docs.espressif.com/projects/esp-idf/en/v5.3.2/esp32/get-started/linux-macos-setup.html#for-linux-users
+sudo apt-get install -y git wget flex bison gperf python3 python3-pip python3-venv cmake ninja-build ccache libffi-dev libssl-dev dfu-util libusb-1.0-0
+
+git clone -b v5.3.2 --recursive https://github.com/espressif/esp-idf
+cd esp-idf
+./install.sh
+. ./export.sh
+```
+
+In CLion there is an official [Serial Monitor](https://plugins.jetbrains.com/plugin/8031-serial-port-monitor) plugin, or use ESP-IDF -
+
+```bash
+idf.py monitor -b 115200
+```
+
+## Starting Over
+
+To set up this project from scratch the following commands were used
+
+```bash
+# My example project directory
+cd ~/Code/klips/esp/cpp/04_esp-idf-arduino
+idf.py set-target esp32
+idf.py add-dependency "espressif/arduino-esp32^3.1.1"
+
+# Autostart Arduino for use of `loop()` and `setup()` functions
+# You can also use the esp-idf `app_main()` function if preferred
+# https://docs.espressif.com/projects/arduino-esp32/en/latest/esp-idf_component.html#configuration
+# You can alternatively do this in the GUI tool `idf.py menuconfig`
+echo "CONFIG_AUTOSTART_ARDUINO=y" >> sdkconfig
+sed -i -e 's/CONFIG_FREERTOS_HZ=100/CONFIG_FREERTOS_HZ=1000/' sdkconfig
+
+# Build the project
+idf.py build
+```
+
+To set this project up in CLion, see [JetBrains documentation](https://www.jetbrains.com/help/clion/esp-idf.html#env-vars).
--- a/esp/cpp/04_esp-idf-arduino/main/CMakeLists.txt
+++ b/esp/cpp/04_esp-idf-arduino/main/CMakeLists.txt
@@ -0,0 +1,4 @@
+idf_component_register(
+    SRCS "main.cpp"
+    INCLUDE_DIRS "."
+)
--- a/esp/cpp/04_esp-idf-arduino/main/idf_component.yml
+++ b/esp/cpp/04_esp-idf-arduino/main/idf_component.yml
@@ -0,0 +1,17 @@
+## IDF Component Manager Manifest File
+dependencies:
+  ## Required IDF version
+  idf:
+    version: '>=4.1.0'
+  # # Put list of dependencies here
+  # # For components maintained by Espressif:
+  # component: "~1.0.0"
+  # # For 3rd party components:
+  # username/component: ">=1.0.0,<2.0.0"
+  # username2/component2:
+  #   version: "~1.0.0"
+  #   # For transient dependencies `public` flag can be set.
+  #   # `public` flag doesn't have an effect dependencies of the `main` component.
+  #   # All dependencies of `main` are public by default.
+  #   public: true
+  espressif/arduino-esp32: ^3.1.1
--- a/esp/cpp/04_esp-idf-arduino/main/main.cpp
+++ b/esp/cpp/04_esp-idf-arduino/main/main.cpp
@@ -0,0 +1,10 @@
+#include "Arduino.h"
+
+void setup() {
+  Serial.begin(115200);
+}
+
+void loop() {
+  Serial.println("Hello world!");
+  delay(1000);
+}
--- a/esp/cpp/04_esp-idf-arduino/sdkconfig
+++ b/esp/cpp/04_esp-idf-arduino/sdkconfig
--- a/esp/cpp/05_temp-humidity-web/.gitignore
+++ b/esp/cpp/05_temp-humidity-web/.gitignore
@@ -0,0 +1,4 @@
+build
+managed_components
+dependencies.lock
+sdkconfig.old
--- a/esp/cpp/05_temp-humidity-web/CMakeLists.txt
+++ b/esp/cpp/05_temp-humidity-web/CMakeLists.txt
@@ -0,0 +1,18 @@
+# For more information about build system see
+# https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/build-system.html
+# The following five lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.26)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+
+project(
+    #[[NAME]]   temp-humidity-web
+    VERSION     0.1
+    DESCRIPTION "Temperature and humidity from DHT sensor served on a web page"
+    LANGUAGES   CXX
+)
+
+# For writing pure cmake components, see the documentation
+# https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-guides/build-system.html#writing-pure-cmake-components
+idf_build_set_property(COMPILE_OPTIONS "-Wno-error" APPEND)
--- a/esp/cpp/05_temp-humidity-web/README.md
+++ b/esp/cpp/05_temp-humidity-web/README.md
@@ -0,0 +1,27 @@
+# 05_temp-humidity-web
+
+This is the same example in [03_temp-humidity-web](./../03_temp-humidity-web), ported to the cmake ESP-IDF build system.
+
+For instructions on setting up the ESP-IDF see [04_-esp-idf-arduino](./../04_esp-idf-arduino)
+
+This example is largely adapted from those in [ESP32-basic-starter-kit.pdf](./ESP32-basic-starter-kit.pdf).
+
+The APIs in the original examples paired with this PDF have changed, and I decided to do some different things with the code and/or circuits, but the original code can be [found here](https://www.dropbox.com/scl/fo/6znlij3eb23ih4jxcpv2w/AKvB1t9CCUgoVRVtGen8Yrw?rlkey=z84anl0hs940qf9fpl7l8q8q2&e=1&dl=0).
+
+![schematic](./schematic.png)
+
+Temperature and humidity sensor served on a web page within the local network.
+
+![screenshot](./screenshot.png)
+
+To build this example run the following commands.
+
+```bash
+source ~/path/to/esp-idf/export.sh
+
+mkdir build
+cd build
+cmake ..
+make -j $(nproc)
+make flash
+```
--- a/esp/cpp/05_temp-humidity-web/main/CMakeLists.txt
+++ b/esp/cpp/05_temp-humidity-web/main/CMakeLists.txt
@@ -0,0 +1,4 @@
+idf_component_register(
+    SRCS "main.cpp"
+    INCLUDE_DIRS "."
+)
--- a/esp/cpp/05_temp-humidity-web/main/idf_component.yml
+++ b/esp/cpp/05_temp-humidity-web/main/idf_component.yml
@@ -0,0 +1,19 @@
+## IDF Component Manager Manifest File
+dependencies:
+  ## Required IDF version
+  idf:
+    version: '>=4.1.0'
+  # # Put list of dependencies here
+  # # For components maintained by Espressif:
+  # component: "~1.0.0"
+  # # For 3rd party components:
+  # username/component: ">=1.0.0,<2.0.0"
+  # username2/component2:
+  #   version: "~1.0.0"
+  #   # For transient dependencies `public` flag can be set.
+  #   # `public` flag doesn't have an effect dependencies of the `main` component.
+  #   # All dependencies of `main` are public by default.
+  #   public: true
+  espressif/arduino-esp32: ^3.1.1
+  zorxx/dht: ^1.0.1
+  esp32async/espasyncwebserver: ^3.7.0~1
--- a/esp/cpp/05_temp-humidity-web/main/main.cpp
+++ b/esp/cpp/05_temp-humidity-web/main/main.cpp
@@ -0,0 +1,189 @@
+#include "WiFi.h"
+#include "ESPAsyncWebServer.h"
+#include "main.h"
+
+// Replace with your network credentials
+const char *ssid = "wifi";
+const char *password = "password";
+
+#define DHTPIN GPIO_NUM_4  // Digital pin connected to the DHT sensor
+
+// Uncomment the type of sensor in use:
+#define DHTTYPE      DHT_TYPE_DHT11  // DHT 11
+//#define DHTTYPE    DHT_TYPE_DHT22  // DHT 22 (AM2302)
+//#define DHTTYPE    DHT_TYPE_DHT21  // DHT 21 (AM2301)
+
+float DHT::readTemperature(bool f)
+{
+  float humidity = 0;
+  float temperature = 0;
+  esp_err_t result = dht_read_float_data(type_, gpio_, &humidity,
+                                         &temperature);
+  if (result == ESP_OK) {
+    ESP_LOGI("[DHT::readTemperature]", "Humidity: %.1f%% Temperature: %.1f°C",
+             humidity,
+             temperature);
+  } else {
+    ESP_LOGE("[DHT::readTemperature]", "Failed to read sensor data: %s",
+             esp_err_to_name(result));
+  }
+  return f ? (temperature * 1.8f) + 32 : temperature;
+}
+
+float DHT::readHumidity()
+{
+  float humidity = 0;
+  float temperature = 0;
+  esp_err_t result = dht_read_float_data(type_, gpio_, &humidity,
+                                         &temperature);
+  if (result == ESP_OK) {
+    ESP_LOGI("[DHT::readTemperature]", "Humidity: %.1f%% Temperature: %.1f°C",
+             humidity,
+             temperature);
+  } else {
+    ESP_LOGE("[DHT::readTemperature]", "Failed to read sensor data: %s",
+             esp_err_to_name(result));
+  }
+  return humidity;
+}
+
+DHT dht(DHTPIN, DHTTYPE);
+
+// Create AsyncWebServer object on port 80
+AsyncWebServer server(80);
+
+String readDHTTemperature()
+{
+  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
+  float t = dht.readTemperature();
+  // Check if any reads failed and exit early (to try again).
+  if (isnan(t)) {
+    Serial.println("Failed to read from DHT sensor!");
+    return "--";
+  } else {
+    Serial.println(t);
+    return String(t);
+  }
+}
+
+String readDHTHumidity()
+{
+  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
+  float h = dht.readHumidity();
+  if (isnan(h)) {
+    Serial.println("Failed to read from DHT sensor!");
+    return "--";
+  } else {
+    Serial.println(h);
+    return String(h);
+  }
+}
+
+const char index_html[] PROGMEM = R"rawliteral(
+<!DOCTYPE HTML><html>
+<head>
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.2/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">
+  <style>
+    html {
+     font-family: Arial;
+     display: inline-block;
+     margin: 0px auto;
+     text-align: center;
+    }
+    h2 { font-size: 3.0rem; }
+    p { font-size: 3.0rem; }
+    .units { font-size: 1.2rem; }
+    .dht-labels{
+      font-size: 1.5rem;
+      vertical-align:middle;
+      padding-bottom: 15px;
+    }
+  </style>
+</head>
+<body>
+  <h2>ESP32 DHT Server</h2>
+  <p>
+    <i class="fas fa-thermometer-half" style="color:#059e8a;"></i>
+    <span class="dht-labels">Temperature</span>
+    <span id="temperature">%TEMPERATURE%</span>
+    <sup class="units">&deg;C</sup>
+  </p>
+  <p>
+    <i class="fas fa-tint" style="color:#00add6;"></i>
+    <span class="dht-labels">Humidity</span>
+    <span id="humidity">%HUMIDITY%</span>
+    <sup class="units">&percnt;</sup>
+  </p>
+</body>
+<script>
+setInterval(function ( ) {
+  var xhttp = new XMLHttpRequest();
+  xhttp.onreadystatechange = function() {
+    if (this.readyState == 4 && this.status == 200) {
+      document.getElementById("temperature").innerHTML = this.responseText;
+    }
+  };
+  xhttp.open("GET", "/temperature", true);
+  xhttp.send();
+}, 10000 ) ;
+
+setInterval(function ( ) {
+  var xhttp = new XMLHttpRequest();
+  xhttp.onreadystatechange = function() {
+    if (this.readyState == 4 && this.status == 200) {
+      document.getElementById("humidity").innerHTML = this.responseText;
+    }
+  };
+  xhttp.open("GET", "/humidity", true);
+  xhttp.send();
+}, 10000 ) ;
+</script>
+</html>)rawliteral";
+
+// Replaces placeholder with DHT values
+String processor(const String &var)
+{
+  //Serial.println(var);
+  if (var == "TEMPERATURE") {
+    return readDHTTemperature();
+  } else if (var == "HUMIDITY") {
+    return readDHTHumidity();
+  }
+  return String();
+}
+
+void setup()
+{
+  // Serial port for debugging purposes
+  Serial.begin(115200);
+
+  // Connect to Wi-Fi
+  WiFi.begin(ssid, password);
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(1000);
+    Serial.println("Connecting to WiFi..");
+  }
+
+  // Print ESP32 Local IP Address
+  Serial.println(WiFi.localIP());
+
+  // Route for root / web page
+  server.on("/", HTTP_GET, [ ](AsyncWebServerRequest *request) {
+    request->send(200, "text/html", index_html, processor);
+  });
+  server.on("/temperature", HTTP_GET, [ ](AsyncWebServerRequest *request) {
+    request->send(200, "text/plain", readDHTTemperature().c_str());
+  });
+  server.on("/humidity", HTTP_GET, [ ](AsyncWebServerRequest *request) {
+    request->send(200, "text/plain", readDHTHumidity().c_str());
+  });
+
+  // Start server
+  server.begin();
+}
+
+void loop()
+{
+
+}
--- a/esp/cpp/05_temp-humidity-web/main/main.h
+++ b/esp/cpp/05_temp-humidity-web/main/main.h
@@ -0,0 +1,33 @@
+#ifndef  MAIN_H
+#define  MAIN_H
+
+#include <cstdint>
+#include "dht.h"
+
+class DHT {
+public:
+  DHT(gpio_num_t gpio, dht_sensor_type_t type) :
+      gpio_(gpio), type_(type) { }
+
+  ~DHT() = default;
+
+  /**
+   * Read temperature from DHT sensor
+   *
+   * @param f True to return in Fahrenheit, False for Celsius.
+   */
+  float readTemperature(bool f = true);
+
+  /**
+   * Read humidity from DHT sensor.
+   */
+  float readHumidity();
+
+private:
+  gpio_num_t gpio_;
+  dht_sensor_type_t type_;
+
+};
+
+
+#endif // MAIN_H
--- a/esp/cpp/05_temp-humidity-web/schematic.png
+++ b/esp/cpp/05_temp-humidity-web/schematic.png
--- a/esp/cpp/05_temp-humidity-web/screenshot.png
+++ b/esp/cpp/05_temp-humidity-web/screenshot.png
--- a/esp/cpp/05_temp-humidity-web/sdkconfig
+++ b/esp/cpp/05_temp-humidity-web/sdkconfig
--- a/esp/cpp/06_i2c-scanner/.gitignore
+++ b/esp/cpp/06_i2c-scanner/.gitignore
@@ -0,0 +1,4 @@
+build
+managed_components
+dependencies.lock
+sdkconfig.old
--- a/esp/cpp/06_i2c-scanner/CMakeLists.txt
+++ b/esp/cpp/06_i2c-scanner/CMakeLists.txt
@@ -0,0 +1,17 @@
+# For more information about build system see
+# https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/build-system.html
+# The following five lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.26)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+
+project(
+    #[[NAME]]   i2c-scanner
+    VERSION     0.1
+    DESCRIPTION "Simple I2C device scanner"
+    LANGUAGES   CXX
+)
+# For writing pure cmake components, see the documentation
+# https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-guides/build-system.html#writing-pure-cmake-components
+idf_build_set_property(COMPILE_OPTIONS "-Wno-error" APPEND)
--- a/esp/cpp/06_i2c-scanner/README.md
+++ b/esp/cpp/06_i2c-scanner/README.md
@@ -0,0 +1,32 @@
+# 06_i2c-scanner
+
+![schematic](./schematic.png)
+
+Simple I2C device scanner.
+
+For this example I used this [SSD1306 OLED display](https://www.digikey.com/en/products/detail/winstar-display/WEA012864DWPP3N00003/20533255).
+
+To build the example run the following commands.
+
+```bash
+source ~/path/to/esp-idf/export.sh
+
+mkdir build
+cd build
+cmake ..
+make -j $(nproc)
+
+# Flash to ESP32
+make flash
+
+# Open Serial Monitor, press CTRL+] to exit.
+make monitor
+```
+
+Expected output in serial monitor at 115200 baud
+
+```bash
+Scanning I2C devices...
+[0x3c]: Device found with clock rate 100000 and timeout 50
+Done.
+```
--- a/esp/cpp/06_i2c-scanner/main/CMakeLists.txt
+++ b/esp/cpp/06_i2c-scanner/main/CMakeLists.txt
@@ -0,0 +1,4 @@
+idf_component_register(
+    SRCS "main.cpp"
+    INCLUDE_DIRS "."
+)
--- a/esp/cpp/06_i2c-scanner/main/idf_component.yml
+++ b/esp/cpp/06_i2c-scanner/main/idf_component.yml
@@ -0,0 +1,17 @@
+## IDF Component Manager Manifest File
+dependencies:
+  ## Required IDF version
+  idf:
+    version: '>=5.3.0'
+  # # Put list of dependencies here
+  # # For components maintained by Espressif:
+  # component: "~1.0.0"
+  # # For 3rd party components:
+  # username/component: ">=1.0.0,<2.0.0"
+  # username2/component2:
+  #   version: "~1.0.0"
+  #   # For transient dependencies `public` flag can be set.
+  #   # `public` flag doesn't have an effect dependencies of the `main` component.
+  #   # All dependencies of `main` are public by default.
+  #   public: true
+  espressif/arduino-esp32: ^3.1.1
--- a/esp/cpp/06_i2c-scanner/main/main.cpp
+++ b/esp/cpp/06_i2c-scanner/main/main.cpp
@@ -0,0 +1,35 @@
+#include "Arduino.h"
+#include "Wire.h"
+
+[[maybe_unused]] static const char *TAG = "i2c-scanner";
+
+void i2c_scan()
+{
+  uint8_t device_num = 0;
+  Serial.println("Scanning I2C devices...");
+  for (byte address = 1; address < 127; address++) {
+    Wire.beginTransmission(address);
+    byte error = Wire.endTransmission();
+    if (error == 0) {
+      Serial.printf(
+          "[0x%.2x]: Device found with clock rate %lu and timeout %u\n",
+          address,
+          Wire.getClock(), Wire.getTimeOut());
+      device_num++;
+    } else if (error == 4) {
+      Serial.printf("[0x%.2x]: Unknown error.\n", address);
+    }
+  }
+  Serial.println(device_num > 0 ? "Done.\n" : "No I2C devices found.\n");
+}
+
+void setup()
+{
+  Serial.begin(115200);
+  Wire.begin();
+}
+
+void loop()
+{
+  i2c_scan();
+}
--- a/esp/cpp/06_i2c-scanner/schematic.png
+++ b/esp/cpp/06_i2c-scanner/schematic.png
--- a/esp/cpp/06_i2c-scanner/sdkconfig
+++ b/esp/cpp/06_i2c-scanner/sdkconfig
--- a/esp/cpp/07_lcd-panel-i2c/.gitignore
+++ b/esp/cpp/07_lcd-panel-i2c/.gitignore
@@ -0,0 +1,4 @@
+build
+managed_components
+dependencies.lock
+sdkconfig.old
--- a/esp/cpp/07_lcd-panel-i2c/CMakeLists.txt
+++ b/esp/cpp/07_lcd-panel-i2c/CMakeLists.txt
@@ -0,0 +1,17 @@
+# For more information about build system see
+# https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/build-system.html
+# The following five lines of boilerplate have to be in your project's
+# CMakeLists in this exact order for cmake to work correctly
+cmake_minimum_required(VERSION 3.26)
+
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+
+project(
+    #[[NAME]]   lcd-panel-i2c
+    VERSION     0.1
+    DESCRIPTION "Using the SSD1306 LCD display with ESP-IDF and LVGL over I2C"
+    LANGUAGES   CXX
+)
+# For writing pure cmake components, see the documentation
+# https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-guides/build-system.html#writing-pure-cmake-components
+idf_build_set_property(COMPILE_OPTIONS "-Wno-error" APPEND)
--- a/esp/cpp/07_lcd-panel-i2c/README.md
+++ b/esp/cpp/07_lcd-panel-i2c/README.md
@@ -0,0 +1,27 @@
+# 07_lcd-panel-i2c
+
+Using the ESP IDF for drawing to a LCD screen over I2C.
+
+[ESP IDF - I2C](https://docs.espressif.com/projects/esp-idf/en/v5.3.2/esp32/api-reference/peripherals/i2c.html)
+
+[ESP IDF - LCD](https://docs.espressif.com/projects/esp-idf/en/v5.3.2/esp32/api-reference/peripherals/lcd/index.html)
+
+[ESP IDF - FreeRTOS](https://docs.espressif.com/projects/esp-idf/en/v5.3.2/esp32/api-reference/system/freertos.html)
+
+![schematic](./schematic.png)
+
+![example](./example.gif)
+
+For instructions on setting up the ESP-IDF see [04_-esp-idf-arduino](./../04_esp-idf-arduino)
+
+To build this example run the following commands.
+
+```bash
+source ~/path/to/esp-idf/export.sh
+
+mkdir build
+cd build
+cmake ..
+make -j $(nproc)
+make flash
+```
--- a/esp/cpp/07_lcd-panel-i2c/example.gif
+++ b/esp/cpp/07_lcd-panel-i2c/example.gif
--- a/esp/cpp/07_lcd-panel-i2c/main/CMakeLists.txt
+++ b/esp/cpp/07_lcd-panel-i2c/main/CMakeLists.txt
@@ -0,0 +1,7 @@
+idf_component_register(
+    SRCS
+    main.cpp display.cpp panel_device.cpp scoped_lock.cpp
+    i2c.h time_keeper.h panel.h ssd1306.h
+    INCLUDE_DIRS .
+    REQUIRES driver
+)
--- a/esp/cpp/07_lcd-panel-i2c/main/display.cpp
+++ b/esp/cpp/07_lcd-panel-i2c/main/display.cpp
@@ -0,0 +1,56 @@
+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com                     ##
+##############################################################################
+*/
+#include <lv_init.h>
+
+#include "display.h"
+
+// Static TimeKeeper for managing ESP timers across all displays.
+TimeKeeper Display::timers_;
+
+Display::Display(IPanelDevice &device) :
+    panel_(device)
+{
+  if (!lv_is_initialized()) {
+    ESP_LOGI(TAG, "Initialize LVGL");
+    lv_init();
+  }
+
+  ESP_LOGI(TAG, "Creating LVGL display");
+  lv_display_ = panel_.device_->create_display();
+  // associate the i2c panel handle to the display
+  lv_display_set_user_data(lv_display_, panel_.esp_panel_);
+
+  panel_.register_display_callbacks(lv_display_);
+}
+
+void Display::set_text(const char *text,
+                       const char *name,
+                       lv_label_long_mode_t long_mode,
+                       lv_align_t align)
+{
+  // Lock the mutex due to the LVGL APIs are not thread-safe.
+  ScopedLock lock;
+
+  ESP_LOGI(TAG, "Display LVGL Scroll Text");
+  lv_obj_t *scr = lv_display_get_screen_active(lv_display_);
+
+  // Create the label if it's `name` doesn't already exist in the map keys.
+  if (!lv_objects_.count(name)) {
+    lv_objects_[name] = lv_label_create(scr);
+  }
+  auto obj = lv_objects_[name];
+
+  // Set text and long mode.
+  lv_label_set_long_mode(obj, long_mode);
+  lv_label_set_text(obj, text);
+
+  // Set the size of the screen.
+  // If you use rotation 90 or 270 use lv_display_get_vertical_resolution.
+  lv_obj_set_width(obj, lv_display_get_horizontal_resolution(lv_display_));
+  lv_obj_align(obj, align, 0, 0);
+}
--- a/esp/cpp/07_lcd-panel-i2c/main/display.h
+++ b/esp/cpp/07_lcd-panel-i2c/main/display.h
@@ -0,0 +1,114 @@
+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com                     ##
+##############################################################################
+*/
+#ifndef DISPLAY_H
+#define DISPLAY_H
+
+#include <widgets/label/lv_label.h>
+
+#include <unordered_map>
+
+#include "time_keeper.h"
+#include "panel.h"
+#include "scoped_lock.h"
+
+/**
+ * Encapsulates lv_display handle and related LVGL operations.
+ * Contains helper methods that wrap basic LVGL operations such as drawing text.
+ * The underlying lv_display can be obtained for manual LVGL operations.
+ * @sa ScopedLock
+ * @sa Display::get()
+ */
+class Display {
+public:
+  /**
+   * Construct a new Display using an object that implements IPanelDevice.
+   *
+   * @param device An object that implements the IPanelDevice interface.
+   */
+  explicit Display(IPanelDevice &device);
+
+  ~Display() = default;
+
+  Display(const Display &) = delete;
+
+  Display(Display &) = delete;
+
+  Display &operator=(Display &) = delete;
+
+  using lv_display_handle_t = lv_display_t *;
+
+  //
+  // GETTERS
+
+  /**
+   * Getter for accessing LVGL display handle.
+   *
+   * @sa ScopedLock for calling custom LVGL API's not implemented by Display.
+   */
+  [[nodiscard]] inline lv_display_handle_t get() const { return lv_display_; }
+
+  /**
+   * Getter for accessing LVGL display handle.
+   *
+   * @sa ScopedLock for calling custom LVGL API's not implemented by Display.
+   */
+  [[nodiscard]] inline lv_display_handle_t get() { return lv_display_; }
+
+  /// Dereference operator for accessing LVGL display handle.
+  [[nodiscard]] inline lv_display_handle_t operator*() const { return get(); }
+
+  /// Dereference operator for accessing LVGL display handle.
+  [[nodiscard]] inline lv_display_handle_t operator*() { return get(); }
+
+  //
+  // LVGL OPERATIONS
+
+  /**
+   * Create a LVGL label with some given text on the current display.
+   * The name of the object can be reused to change text on this label later.
+   *
+   * @param text Text to write to the display.
+   * @param name Name for the LVGL label object associated with this text.
+   * @param long_mode LVGL long mode for text wider than the current display.
+   * @param align LVGL alignment to use for placing the label on the display.
+   */
+  void set_text(const char *text,
+                const char *name,
+                lv_label_long_mode_t long_mode = LV_LABEL_LONG_SCROLL_CIRCULAR,
+                lv_align_t align = LV_ALIGN_TOP_MID);
+
+  //
+  // PUBLIC STATIC MEMBERS
+
+  /// Public static TimeKeeper for managing ESP timers across all displays.
+  static TimeKeeper timers_;
+
+private:
+
+  //
+  // PRIVATE MEMBERS
+
+  /// Panel associated with this Display.
+  Panel panel_;
+
+  /// LVGL display handle.
+  lv_display_handle_t lv_display_;
+
+  /**
+   * LVGL object handles stored in the LVGL screen associated with this Display.
+   *
+   * @sa Display::set_text
+   * @sa lv_display_get_screen_active
+   */
+  std::unordered_map<const char *, lv_obj_t *> lv_objects_;
+
+  /// Tag used for ESP logging.
+  constexpr static const char *TAG = "Display";
+};
+
+#endif // DISPLAY_H
--- a/esp/cpp/07_lcd-panel-i2c/main/i2c.h
+++ b/esp/cpp/07_lcd-panel-i2c/main/i2c.h
@@ -0,0 +1,91 @@
+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com                     ##
+##############################################################################
+*/
+#ifndef I2C_H
+#define I2C_H
+
+#define I2C_BUS_PORT  0
+
+#include <driver/i2c_master.h>
+
+/**
+ * Encapsulates ESP I2C creation and usage.
+ */
+struct I2C {
+  /**
+   * Construct and initialize an ESP I2C master bus.
+   * An I2C constructor may only be called one time in any application.
+   *
+   * @param sda GPIO pin number for SDA
+   * @param scl GPIO pin number for SCL
+   * @param rst GPIO pin number for RST
+   */
+  I2C(gpio_num_t sda, gpio_num_t scl, int rst = -1) :
+      I2C((i2c_master_bus_config_t) {
+              .i2c_port = I2C_BUS_PORT,
+              .sda_io_num = sda,
+              .scl_io_num = scl,
+              .clk_source = I2C_CLK_SRC_DEFAULT,
+              .glitch_ignore_cnt = 7,
+              .flags {
+                  .enable_internal_pullup = true,
+              },
+          },
+          rst
+      ) { }
+
+  /**
+   * Construct an ESP I2C master bus given a specific ESP I2C configuration.
+   * An I2C constructor may only be called one time in any application.
+   *
+   * @param config ESP I2C master bus configuration.
+   * @param rst GPIO pin number for RST
+   */
+  explicit I2C(i2c_master_bus_config_t config, int rst = -1) :
+      esp_bus_config_(config),
+      rst_num_(rst)
+  {
+    i2c_master_bus_handle_t i2c;
+    ESP_LOGI(TAG, "Initializing new master I2C bus");
+    ESP_ERROR_CHECK(i2c_new_master_bus(&esp_bus_config_, &i2c));
+  }
+
+  ~I2C() = default;
+
+  //
+  // GETTERS
+
+  /**
+   * ESP I2C master bus handle getter.
+   * This will fail if an I2C instance was never constructed.
+   */
+  static i2c_master_bus_handle_t get()
+  {
+    i2c_master_bus_handle_t i2c = nullptr;
+    ESP_ERROR_CHECK(i2c_master_get_bus_handle(0, &i2c));
+    return i2c;
+  }
+
+  //
+  // PUBLIC MEMBERS
+
+  /// ESP I2C master bus configuration used during initialization.
+  i2c_master_bus_config_t esp_bus_config_;
+
+  /// RST GPIO pin number.
+  int rst_num_;
+
+private:
+
+  //
+  // PRIVATE MEMBERS
+
+  /// Tag used for ESP logging.
+  constexpr static const char *TAG = "I2C";
+};
+
+#endif //I2C_H
--- a/esp/cpp/07_lcd-panel-i2c/main/idf_component.yml
+++ b/esp/cpp/07_lcd-panel-i2c/main/idf_component.yml
@@ -0,0 +1,6 @@
+## IDF Component Manager Manifest File
+dependencies:
+  idf: '>=5.3.0'
+  espressif/arduino-esp32: ^3.1.1
+  lvgl/lvgl: "9.2.0"
+  esp_lcd_sh1107: "^1"
--- a/esp/cpp/07_lcd-panel-i2c/main/main.cpp
+++ b/esp/cpp/07_lcd-panel-i2c/main/main.cpp
@@ -0,0 +1,41 @@
+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com                     ##
+##############################################################################
+*/
+#include "display.h"
+#include "ssd1306.h"
+
+// Pin may vary based on your schematic.
+#define PIN_SDA                GPIO_NUM_21
+#define PIN_SCL                GPIO_NUM_22
+#define PIN_RST                (-1)
+
+I2C i2c(PIN_SDA, PIN_SCL, PIN_RST);
+
+void setup()
+{
+  SSD1306 ssd1306(i2c);
+  Display d(ssd1306);
+
+  d.set_text("Test test 12345678910",
+             "test-text1",
+             LV_LABEL_LONG_SCROLL,
+             LV_ALIGN_CENTER);
+
+  d.set_text("Test test changing text",
+             "test-text1",
+             LV_LABEL_LONG_SCROLL,
+             LV_ALIGN_CENTER);
+
+  d.set_text("Hello hello hello hello hello hello hello hello!", "test-text2");
+
+  d.set_text("A random sentence with no meaning at all.",
+             "test-text3",
+             LV_LABEL_LONG_CLIP,
+             LV_ALIGN_BOTTOM_MID);
+}
+
+void loop() { }
--- a/esp/cpp/07_lcd-panel-i2c/main/panel.h
+++ b/esp/cpp/07_lcd-panel-i2c/main/panel.h
@@ -0,0 +1,87 @@
+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com                     ##
+##############################################################################
+*/
+#ifndef PANEL_H
+#define PANEL_H
+
+#include "panel_device.h"
+
+/**
+ * Encapsulates esp_lcd_panel handles and operations.
+ * The only exception is esp_lcd_panel_io_i2c_config_t owned by IPanelDevice.
+ * This structure requires details specific to the implementing device.
+ *
+ * Panel is an implementation detail of Display, not meant to be used directly.
+ */
+struct Panel {
+  /**
+   * Construct a new Panel using an object that implements IPanelDevice.
+   *
+   * @param device An object that implements the IPanelDevice interface.
+   */
+  explicit Panel(IPanelDevice &device) :
+      device_(&device),
+      esp_io_(nullptr),
+      esp_panel_(nullptr),
+      esp_panel_config_(
+          (esp_lcd_panel_dev_config_t) {
+              .reset_gpio_num = device_->rst_num_,
+              .bits_per_pixel = 1,
+              .vendor_config = device_->vendor_config(),
+          }
+      )
+  {
+    esp_io_ = device_->create_io_handle();
+
+    device_->create_panel(esp_panel_config_, esp_io_, esp_panel_);
+
+    ESP_LOGI(TAG, "Resetting panel display");
+    ESP_ERROR_CHECK(esp_lcd_panel_reset(esp_panel_));
+    ESP_LOGI(TAG, "Initializing panel display");
+    ESP_ERROR_CHECK(esp_lcd_panel_init(esp_panel_));
+    ESP_LOGI(TAG, "Turning on panel display");
+    ESP_ERROR_CHECK(esp_lcd_panel_disp_on_off(esp_panel_, true));
+  }
+
+  ~Panel() = default;
+
+  //
+  // PUBLIC MEMBERS
+
+  /// Pointer to object using known interface for IPanelDevice.
+  IPanelDevice *device_;
+
+  /// ESP LCD panel IO handle.
+  esp_lcd_panel_io_handle_t esp_io_;
+
+  /// ESP LCD panel handle.
+  esp_lcd_panel_handle_t esp_panel_;
+
+  /// ESP LCD panel configuration structure.
+  esp_lcd_panel_dev_config_t esp_panel_config_;
+
+  /**
+   * Registers LVGL draw buffers and callbacks for rendering the display.
+   *
+   * @param display_handle Pointer to the LVGL display to use for rendering.
+   */
+  inline void register_display_callbacks(lv_display_t *display_handle) const
+  {
+    device_->register_rendering_data(display_handle, esp_io_);
+    device_->register_lvgl_tick_timer();
+  }
+
+private:
+
+  //
+  // PRIVATE MEMBERS
+
+  /// Tag used for ESP logging.
+  constexpr static const char *TAG = "Panel";
+};
+
+#endif //PANEL_H
--- a/esp/cpp/07_lcd-panel-i2c/main/panel_device.cpp
+++ b/esp/cpp/07_lcd-panel-i2c/main/panel_device.cpp
@@ -0,0 +1,145 @@
+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com                     ##
+##############################################################################
+*/
+#include "panel_device.h"
+#include "display.h"
+
+bool IPanelDevice::lvgl_flush_ready_cb(esp_lcd_panel_io_handle_t,
+                                       esp_lcd_panel_io_event_data_t *,
+                                       void *user_ctx)
+{
+  auto *disp = (lv_display_t *) user_ctx;
+  lv_display_flush_ready(disp);
+  return false;
+}
+
+void IPanelDevice::lvgl_flush_cb(lv_display_t *display, const lv_area_t *area,
+                                 uint8_t *px_map) // NOLINT(*-non-const-parameter)
+{
+  auto panel_handle =
+      (esp_lcd_panel_handle_t) lv_display_get_user_data(display);
+
+  // Necessary because LVGL reserves 2x4 bytes in the buffer for a palette.
+  // Since we are monochrome, we don't need these additional bytes.
+  // For more information about the monochrome, please refer to:
+  // https://docs.lvgl.io/9.2/porting/display.html#monochrome-displays
+  // Skip the palette here.
+  px_map += LVGL_PALETTE_SIZE;
+
+  uint16_t hor_res = lv_display_get_physical_horizontal_resolution(display);
+  int32_t x1 = area->x1;
+  int32_t x2 = area->x2;
+  int32_t y1 = area->y1;
+  int32_t y2 = area->y2;
+
+
+  // As of 03/01/2025 master branch of LVGL contains this helper for the same.
+  // https://docs.lvgl.io/master/API/draw/sw/lv_draw_sw_utils.html
+  // lv_draw_sw_i1_convert_to_vtiled()
+  for (int32_t y = y1; y <= y2; y++) {
+    for (int32_t x = x1; x <= x2; x++) {
+      // Get the byte offset of the pixel coordinates using horizontal-mapping.
+      int h_offset = Pixel::horizontal_byte_offset(x, y, hor_res);
+      // True if the pixel is lit, else false.
+      bool chroma_color = px_map[h_offset] & Pixel::msb_mask(x);
+
+      // We need an additional buffer for transposing the pixel data to the
+      // vertical format required by the display driver.
+      uint8_t *buf = IPanelDevice::get_additional_draw_buffer();
+      // Move to the position in the auxillary buffer where the pixel is stored.
+      buf += Pixel::vertical_byte_offset(x, y, hor_res);
+
+      // Write the single bit to the monochrome display mapped vertically.
+      // Take the Least Significant Bit mask of the Y coordinate to select the
+      // bit representing a pixel at position y in a vertically-mapped display.
+      if (chroma_color) {
+        // Set the vertically-mapped pixel to on.
+        *buf &= ~Pixel::lsb_mask(y);
+      } else {
+        // Set the vertically-mapped pixel to off.
+        *buf |= Pixel::lsb_mask(y);
+      }
+    }
+  }
+  // Pass the draw buffer to the driver.
+  ESP_ERROR_CHECK(
+      esp_lcd_panel_draw_bitmap(panel_handle, x1, y1, x2 + 1, y2 + 1,
+                                IPanelDevice::get_additional_draw_buffer()));
+}
+
+void IPanelDevice::lvgl_increase_tick_cb(void *)
+{
+  // Tell LVGL how many milliseconds has elapsed
+  lv_tick_inc(LVGL_TICK_PERIOD_MS);
+}
+
+[[noreturn]] void IPanelDevice::lvgl_port_task(void *)
+{
+  // Optionally initialize some LVGL objects here before entering loop below.
+
+  ESP_LOGI(TAG, "Starting LVGL task");
+  for (uint32_t time_to_next_ms = 0; true; usleep(1000 * time_to_next_ms)) {
+    // Obtain LVGL API lock before calling any LVGL methods.
+    ScopedLock lock;
+
+    // Optionally handle LVGL input or event logic here.
+
+    // Update LVGL periodic timers.
+    time_to_next_ms = lv_timer_handler();
+  }
+}
+
+void IPanelDevice::register_rendering_data(lv_display_t *display_handle,
+                                           esp_lcd_panel_io_handle_t io_handle)
+{
+  // Create draw buffer.
+  ESP_LOGI(TAG, "Allocate separate LVGL draw buffers");
+  lv_buf_ = heap_caps_calloc(1, lv_buf_size_,
+                             MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT);
+  assert(lv_buf_);
+
+  ESP_LOGI(TAG, "Set LVGL draw buffers");
+  // Color format must be set first, LVGL9 suooprt new monochromatic format.
+  lv_display_set_color_format(display_handle, LV_COLOR_FORMAT_I1);
+  lv_display_set_buffers(display_handle, lv_buf_, nullptr,
+                         lv_buf_size_,
+                         LV_DISPLAY_RENDER_MODE_FULL);
+  lv_display_set_rotation(display_handle, LV_DISPLAY_ROTATION_0);
+
+  ESP_LOGI(TAG, "Set LVGL callback for flushing to the display");
+  lv_display_set_flush_cb(display_handle, IPanelDevice::lvgl_flush_cb);
+
+  ESP_LOGI(TAG, "Register io panel callback for LVGL flush ready notification");
+  const esp_lcd_panel_io_callbacks_t cbs = {
+      .on_color_trans_done = IPanelDevice::lvgl_flush_ready_cb,
+  };
+  ESP_ERROR_CHECK(
+      esp_lcd_panel_io_register_event_callbacks(io_handle, &cbs,
+                                                display_handle));
+}
+
+void IPanelDevice::register_lvgl_tick_timer()
+{
+  ESP_LOGI(TAG, "Use esp_timer to increase LVGL tick");
+  const esp_timer_create_args_t esp_timer_args = {
+      .callback = &IPanelDevice::lvgl_increase_tick_cb,
+      // Data to pass to the IPanelDevice::lvgl_port_task callback.
+      .arg = nullptr,
+      .name = "lvgl_tick",
+  };
+  Display::timers_.start_new_timer_periodic(esp_timer_args,
+                                            LVGL_TICK_PERIOD_MS * 1000);
+
+  // LVGL requires a FreeRTOS task for running it's event loop.
+  // The lvgl_port_task callback can update the UI or handle input logic.
+  // For this basic example we don't do either of these things.
+  ESP_LOGI(TAG, "Create LVGL FreeRTOS task");
+  // Optionally set user data to pass to LVGL's FreeRTOS task callback here.
+  void *user_data = nullptr;
+  xTaskCreate(lvgl_port_task, "LVGL", LVGL_TASK_STACK_SIZE,
+              user_data, LVGL_TASK_PRIORITY, nullptr);
+}
--- a/esp/cpp/07_lcd-panel-i2c/main/panel_device.h
+++ b/esp/cpp/07_lcd-panel-i2c/main/panel_device.h
@@ -0,0 +1,428 @@
+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com                     ##
+##############################################################################
+*/
+#ifndef PANEL_DEVICE_H
+#define PANEL_DEVICE_H
+
+#include <esp_lcd_panel_dev.h>
+#include <esp_lcd_panel_ops.h>
+#include <esp_lcd_panel_io.h>
+#include <esp_log.h>
+
+#include <display/lv_display.h>
+
+#include "i2c.h"
+
+// LVGL reserves 2x4 bytes in the buffer to be used as a palette.
+// This additional space must be added to the IPanelDevice::buf_size_.
+#define LVGL_PALETTE_SIZE      8
+#define LVGL_TICK_PERIOD_MS    5
+#define LVGL_TASK_STACK_SIZE   (4 * 1024)
+#define LVGL_TASK_PRIORITY     2
+
+#define LCD_H_RES              128
+#define LCD_V_RES              64
+
+/**
+ * Wraps some foundational operations performed on pixel coordinates when
+ * dealing with pointer arithmetic. Most of these could be done ad-hoc as needed
+ * but using this helper reduces the risk of errors.
+ */
+struct Pixel {
+  /**
+   * Calculate byte offset for the pixel at [x,y] within a horizontally-mapped
+   * monochrome uint8 draw buffer, using the initialized horizontal resolution.
+   *
+   * We use `>> 3` because each pixel requires 1 bit, but each uint8 in the draw
+   * buffer can hold 8 bits. To find the uint8 value in our draw buffer that
+   * stores this pixel's value we must compensate for this when using pixel
+   * coordinates in byte math.
+   *
+   * Therefore, each uint8 in the draw buffer stores the state of 8 pixels.
+   * Below is an example of calculating for [x, y] pixel coordinates [20, 10].
+   *
+   * For the horizontal case, each row (y_) of the image is represented by
+   * `hor_res_ >> 3` bytes (16). The byte-offset of the first pixel in the 10th
+   * row for example is `16 * 10` = 160.
+   *
+   * Since the pixels are stored horizontally we must calculate the 20th pixel
+   * column (x_) as `160 + (20 >> 3)`, or `160 + (20 / 8)` to get a final offset
+   * of 162.
+   *
+   * @param x X pixel coordinate to find byte offset.
+   * @param y Y pixel coordinate to find byte offset.
+   * @return byte offset for a single-byte monochrome pixel at [x,y].
+   */
+  [[maybe_unused]] [[nodiscard]] static ptrdiff_t
+  horizontal_byte_offset(const int32_t &x, const int32_t &y, const int32_t& hor_res)
+  {
+    // Convert pixel (bit) coordinates to byte coordinates in the draw buffer.
+    return (hor_res >> 3) * y + (x >> 3);
+  }
+
+  /**
+   * Calculate byte offset for the pixel at [x,y] within a vertically-mapped
+   * monochrome uint8 draw buffer, using the initialized horizontal resolution.
+   *
+   * We use `>> 3` because each pixel requires 1 bit, but each uint8 in the draw
+   * buffer can hold 8 bits. To find the uint8 value in our draw buffer that
+   * stores this pixel's value we must compensate for this when using pixel
+   * coordinates in byte math.
+   *
+   * Therefore, each uint8 in the draw buffer stores the state of 8 pixels.
+   * Below is an example of calculating for [x, y] pixel coordinates [20, 10].
+   *
+   * For the vertical case, each row (y_) of the image is represented by
+   * `hor_res_` bytes (128) - one for each column (x_). Because the pixels are
+   * stored vertically, the byte-offset of the first pixel in the 10th row is
+   * `128 * (10 >> 3)` or * `128 * (10 / 8)` = 128.
+   *
+   * From this location we can simply calculate the 20th pixel column (x_) as
+   * `128 + 20` to get a final offset of 148, because the pixels are stored in a
+   * columnar format.
+   *
+   * @param x X pixel coordinate to find byte offset.
+   * @param y Y pixel coordinate to find byte offset.
+   * @return byte offset for a single-byte monochrome pixel at [x,y].
+   */
+  [[maybe_unused]] [[nodiscard]] static ptrdiff_t
+  vertical_byte_offset(const int32_t &x, const int32_t &y, const int32_t& hor_res)
+  {
+    // Convert pixel (bit) coordinates to byte coordinates in the draw buffer.
+    return hor_res * (y >> 3) + x;
+  }
+
+  /**
+   * Finds the Most Significant Bit location of bit `i` in a byte.
+   *
+   *          MSB           LSB
+   * bits      7 6 5 4 3 2 1 0
+   * data      8 7 6 5 4 3 2 1
+   *          Left         Right
+   *
+   * @return bitmask for MSB location of `i`.
+   */
+  [[maybe_unused]] [[nodiscard]] static uint8_t
+  msb_mask(const int32_t &i) { return 1 << (7 - i % 8); }
+
+  /**
+   * Finds the Least Significant Bit location of bit `i` in a byte.
+   *
+   *          LSB           MSB
+   * bits      0 1 2 3 4 5 6 7
+   * data      1 2 3 4 5 6 7 8
+   *          Left         Right
+   *
+   * @return bitmask for LSB location of `i`.
+   */
+  [[maybe_unused]] [[nodiscard]] static uint8_t
+  lsb_mask(const int32_t &i) { return 1 << (i % 8); }
+};
+
+
+/**
+ * Encapsulates vendor specific ESP LCD panel initialization logic.
+ * This pure virtual interface can be inherited from for using new LCD devices.
+ * See SSD1306 as an example to implement IPanelDevice for NT35510 or ST7789.
+ *
+ * At this time only I2C is supported.
+ * Classes that inherit from this interface should likely be marked final.
+ */
+class IPanelDevice {
+public:
+  /**
+   * Construct an IPanelDevice.
+   *
+   * @param i2c I2C object. Eventually this will mature to IProtocol or similar.
+   * @param config I2C configuration for this device.
+   * @param height Height of the device screen in pixels.
+   * @param width Width of the device screen in pixels.
+   */
+  explicit IPanelDevice(I2C &i2c,
+                        esp_lcd_panel_io_i2c_config_t config,
+                        int width,
+                        int height) :
+      IPanelDevice(i2c, config, width, height,
+                   width * height / 8 + LVGL_PALETTE_SIZE) { }
+
+  /**
+   * Construct an IPanelDevice.
+   *
+   * @param i2c I2C object. Eventually this will mature to IProtocol or similar.
+   * @param config I2C configuration for this device.
+   * @param height Height of the device screen in pixels.
+   * @param width Width of the device screen in pixels.
+   * @param draw_buf_size Size of the draw buffer for this device.
+   */
+  explicit IPanelDevice(I2C &i2c,
+                        esp_lcd_panel_io_i2c_config_t io_config,
+                        int width,
+                        int height,
+                        size_t draw_buf_size) :
+      width_(width),
+      height_(height),
+      rst_num_(i2c.rst_num_),
+      lv_buf_size_(draw_buf_size),
+      esp_io_config_(io_config) { }
+
+  virtual ~IPanelDevice() = default;
+
+  //
+  // PUBLIC METHODS
+
+  /**
+   * Create an LVGL display using the width and height of this device.
+   *
+   * @return Handle to the created LVGL display.
+   */
+  [[nodiscard]] lv_display_t *create_display() const
+  {
+    auto display = lv_display_create(width_, height_);
+    assert(display);
+    return display;
+  }
+
+  /**
+   * Create an ESP LCD panel IO handle.
+   *
+   * @return The created ESP LCD panel IO handle.
+   */
+  [[nodiscard]] esp_lcd_panel_io_handle_t create_io_handle()
+  {
+    ESP_LOGI(TAG, "Creating panel IO handle");
+    esp_lcd_panel_io_handle_t handle = nullptr;
+    ESP_ERROR_CHECK(
+        esp_lcd_new_panel_io_i2c(I2C::get(), &esp_io_config_, &handle));
+    return handle;
+  }
+
+  /**
+   * Create and initialize an ESP panel handle.
+   * IPanelDevice implementors must initialize the panel within init_panel.
+   *
+   * @param config ESP LCD panel configuration.
+   * @param io ESP LCD panel IO handle.
+   * @param [out] panel ESP LCD panel handle output pointer location.
+   */
+  void create_panel(esp_lcd_panel_dev_config_t &config,
+                    esp_lcd_panel_io_handle_t io,
+                    esp_lcd_panel_handle_t &panel)
+  {
+    // If the passed handle is already allocated, delete it.
+    if (panel != nullptr) {
+      ESP_LOGI(TAG, "Removing unused panel");
+      esp_lcd_panel_del(panel);
+    }
+
+    ESP_LOGI(TAG, "Installing vendor panel driver");
+    // Call pure virtual method responsible for initializing the panel handle.
+    init_panel(config, io, panel);
+  }
+
+  /**
+   * Retrieve the device specific vendor configuration structure.
+   *
+   * @return Address of vendor configuration structure.
+   * @sa SSD1306::vendor_config
+   */
+  virtual void *vendor_config() = 0;
+
+  //
+  // PUBLIC MEMBERS
+
+  /// Width of the device screen in pixels.
+  int32_t width_;
+
+  /// Height of the device screen in pixels.
+  int32_t height_;
+
+  /// RST GPIO pin number.
+  int rst_num_;
+
+  /// LVGL draw buffer size for the device.
+  size_t lv_buf_size_;
+
+  /// ESP LCD panel IO configuration.
+  esp_lcd_panel_io_i2c_config_t esp_io_config_;
+
+  /**
+   * Registers LVGL draw buffers and callbacks for this display.
+   *
+   * An implementation of the interface can optionally override this method to
+   * provide custom LVGL callbacks and display configurations.
+   *
+   * @param display_handle LVGL display handle to use for rendering.
+   * @param io_handle IO handle for the ESP LCD panel.
+   */
+  virtual void register_rendering_data(lv_display_t *display_handle,
+                                       esp_lcd_panel_io_handle_t io_handle);
+
+  /**
+   * Registers LVGL ticker timer callback for rendering this display.
+   *
+   * An implementation of the interface can optionally override this method to
+   * provide custom LVGL callbacks and tick configurations.
+   */
+  virtual void register_lvgl_tick_timer();
+
+protected:
+  /**
+   * Static accessor to a static buffer to store draw buffer data for the panel.
+   *
+   * This method is protected to allow an implementation to provide a custom
+   * callback method similar to IPanelDevice::lvgl_flush_cb.
+   *
+   * The buffer is allocated statically within the scope of this function to
+   * allow creating multiple panels that _each_ manage their own statically
+   * allocated draw buffer data. This simplifies implementing the interface by
+   * taking this responsibility off of the implementor. The buffer will only be
+   * allocated if this method is called, so the memory is only used if required.
+   *
+   * @return Pointer to uint8 draw buffer data.
+   * @sa register_rendering_data for overriding LVGL rendering callbacks.
+   */
+  static uint8_t *get_additional_draw_buffer()
+  {
+    // Static to the scope of this function, not the compilation unit.
+    // For LV_COLOR_FORMAT_I1 we need an extra buffer to hold converted data.
+    static uint8_t oled_buffer[LCD_H_RES * LCD_V_RES / 8];
+    return oled_buffer;
+  }
+
+private:
+
+  //
+  // PRIVATE METHODS
+
+  /**
+    * Initializes the ESP panel using vendor specific APIs and configurations.
+    * This method should implement any setup logic specific to the device.
+    *
+    * @param config ESP LCD panel configuration.
+    * @param io ESP LCD panel IO handle.
+    * @param [out] panel ESP LCD panel handle output pointer location.
+    */
+  virtual void init_panel(esp_lcd_panel_dev_config_t &config,
+                          esp_lcd_panel_io_handle_t io,
+                          esp_lcd_panel_handle_t &panel) = 0;
+
+  //
+  // PRIVATE STATIC METHODS
+
+/**
+ * The callback invoked when panel IO finishes transferring color data.
+ * This signals that the panel is ready to flush image data to the display.
+ *
+ * @param panel LCD panel IO handles.
+ * @param data Panel IO event data, fed by driver.
+ * @param user_ctx User data, passed from `esp_lcd_panel_io_xxx_config_t`.
+ * @return Whether a high priority task has been waken up by this function.
+ * @sa SSD1306::SSD1306 for setting user_ctx data passed to the callback.
+ * @sa register_rendering_data for overriding this callback.
+ */
+  static bool lvgl_flush_ready_cb(esp_lcd_panel_io_handle_t panel,
+                                  esp_lcd_panel_io_event_data_t *data,
+                                  void *user_ctx);
+
+  /**
+   * The callback invoked for flushing the rendered image to the display.
+   *
+   * `px_map` contains the rendered image as raw pixel map and it should be
+   *  copied to `area` on the display.
+   *
+   * The following details are crucial for understanding the logic surrounding
+   * flushing to the display in this example.
+   *
+   * The order of bits within the px_map from _LVGL_ is MSB first.
+   *              MSB           LSB
+   *     bits      7 6 5 4 3 2 1 0
+   *     pixels    0 1 2 3 4 5 6 7
+   *              Left         Right
+   *
+   * The bytes from _LVGL_ are mapped to pixel rows of the display
+   * 8 bits (pixels) per byte -
+   * [0, 0, 0, 0, 0, 0, 0, 0]
+   * [0, 0, 0, 0, 0, 0, 0, 0]
+   * [0, 0, 0, 0, 0, 0, 0, 0]
+   *
+   * The order of bits expected by the _display driver_ is LSB first.
+   * We must preserve pairing of each bit and pixel when writing to the display.
+   *              LSB           MSB
+   *     bits      0 1 2 3 4 5 6 7
+   *     pixels    7 6 5 4 3 2 1 0
+   *              Left         Right
+   *
+   * Bytes expected by the _display driver_ map to pixel columns of the display.
+   * 8 bits (pixels) per byte -
+   * [0, [0, [0, [0,
+   *  0,  0,  0,  0,
+   *  0,  0,  0,  0,
+   *  0,  0,  0,  0,
+   *  0,  0,  0,  0,
+   *  0,  0,  0,  0,
+   *  0,  0,  0,  0,
+   *  0]  0]  0]  0]
+   *
+   *  These layouts in memory have no opinion on the shape of the image. The
+   *  beginning and end of a row or a column for example is entirely dependent
+   *  on how the data is accessed. The vertical and horitzontal resolution may
+   *  vary between displays.
+   *
+   * For the LV_COLOR_FORMAT_I1 color format we are using, an additional buffer
+   * is needed for transposing the bits to the vertical arrangement required by
+   * the display driver that is outlined above.
+   *
+   * This callback implementation is an example of handling this transposition
+   * and flushing the data to the display in the expected format.
+   *
+   * @param display LVGL display handle to use for rendering.
+   * @param area Area of the display being flushed.
+   * @param px_map Rendered image data for writing to the display area.
+   * @sa register_rendering_data for overriding this callback.
+   * @sa get_additional_draw_buffer
+   */
+  static void lvgl_flush_cb(lv_display_t *display,
+                            const lv_area_t *area,
+                            uint8_t *px_map);
+
+  /**
+   * Callback invoked for every period of the timer.
+   *
+   * This callback _must_ call lv_tick_inc to inform LVGL how much time has
+   * elapsed since the last period of the timer.
+   *
+   * @param data User data passed to the callback.
+   * @sa register_lvgl_tick_timer for setting user data and the tick period of
+   *        the timer, or overriding this callback entirely.
+   */
+  static void lvgl_increase_tick_cb(void *data);
+
+  /**
+   * FreeRTOS task callback invoked for handling LVGL events or updating the UI.
+   *
+   * This function is intentionally an endless loop and should never return.
+   * LVGL initialization logic can optionally be added before entering the loop.
+   * Input logic can optionally be handled within the loop.
+   *
+   * This callback _must_ call lv_timer_handler to handle LVGL periodic timers.
+   *
+   * @param data User data passed to the callback.
+   * @sa register_lvgl_tick_timer for overriding this callback.
+   */
+  [[noreturn]] static void lvgl_port_task(void *data);
+
+  //
+  // PRIVATE MEMBERS
+
+  /// LVGL draw buffer associated with this Display's lv_display_t.
+  void *lv_buf_;
+
+  /// Tag used for ESP logging.
+  constexpr static const char *TAG = "IPanelDevice";
+};
+
+#endif // PANEL_DEVICE_H
--- a/esp/cpp/07_lcd-panel-i2c/main/scoped_lock.cpp
+++ b/esp/cpp/07_lcd-panel-i2c/main/scoped_lock.cpp
@@ -0,0 +1,12 @@
+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com                     ##
+##############################################################################
+*/
+#include "scoped_lock.h"
+
+// LVGL library is not thread-safe, this example calls LVGL APIs from tasks.
+// We must use a mutex to protect it.
+_lock_t ScopedLock::lv_lock_;
--- a/esp/cpp/07_lcd-panel-i2c/main/scoped_lock.h
+++ b/esp/cpp/07_lcd-panel-i2c/main/scoped_lock.h
@@ -0,0 +1,28 @@
+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com                     ##
+##############################################################################
+*/
+#ifndef SCOPED_LOCK_H
+#define SCOPED_LOCK_H
+
+#include <mutex>
+
+/**
+ * Obtains LVGL API mutex lock for the duration of local scope.
+ *
+ * LVGL library is not thread-safe, this lock should be held when making calls
+ * to the LVGL API, and released as soon as possible when finished.
+ */
+struct ScopedLock {
+  explicit ScopedLock() { _lock_acquire(&lv_lock_); }
+
+  ~ScopedLock() { _lock_release(&lv_lock_); }
+
+  /// Mutex used to protect LVGL API calls.
+  static _lock_t lv_lock_;
+};
+
+#endif // SCOPED_LOCK_H
--- a/esp/cpp/07_lcd-panel-i2c/main/ssd1306.h
+++ b/esp/cpp/07_lcd-panel-i2c/main/ssd1306.h
@@ -0,0 +1,106 @@
+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com                     ##
+##############################################################################
+*/
+#ifndef SSD1306_H
+#define SSD1306_H
+
+#include <esp_lcd_panel_ssd1306.h>
+
+#include "panel_device.h"
+
+// According to specific display hardware.
+// https://www.digikey.com/en/products/detail/winstar-display/WEA012864DWPP3N00003/20533255
+#define SCREEN_WIDTH           128  // OLED display width, in pixels.
+#define SCREEN_HEIGHT          64  // OLED display height, in pixels.
+
+// According to SSD1306 datasheet.
+// https://cdn-shop.adafruit.com/datasheets/SSD1306.pdf
+#define I2C_HW_ADDR            0x3C
+#define LCD_PIXEL_CLOCK_HZ     (400 * 1000)
+// Bit number used to represent command and parameter
+#define LCD_CMD_BITS           8
+#define LCD_PARAM_BITS         8
+
+/**
+ * Example of implementing the IPanelDevice interface for SSD1306 LCD device.
+ */
+class SSD1306 final : public IPanelDevice {
+public:
+  /**
+   * Construct a new SSD1306 device.
+   *
+   * @param i2c I2C master bus to manage this device.
+   */
+  explicit SSD1306(I2C &i2c) :
+      SSD1306(i2c, {.height = SCREEN_HEIGHT}) { }
+
+  /**
+   * Construct a new SSD1306 device given a specific SSD1306 configuration.
+   *
+   * @param i2c I2C master bus to manage this device.
+   * @param config SSD1306 vendor configuration.
+   * @param width Width of the device screen in pixels.
+   * @param height Height of the device screen in pixels.
+   */
+  SSD1306(I2C &i2c,
+          esp_lcd_panel_ssd1306_config_t config,
+          int width = SCREEN_WIDTH,
+          int height = SCREEN_HEIGHT
+  ) :
+      IPanelDevice(i2c,
+                   (esp_lcd_panel_io_i2c_config_t) {
+                       .dev_addr = I2C_HW_ADDR,
+                       // User data to pass to the LVGL flush_ready callback.
+                       // See IPanelDevice::lvgl_flush_ready_cb
+                       .user_ctx = nullptr,
+                       .control_phase_bytes = 1,
+                       .dc_bit_offset = 6,
+                       .lcd_cmd_bits = LCD_CMD_BITS,
+                       .lcd_param_bits = LCD_PARAM_BITS,
+                       .scl_speed_hz = LCD_PIXEL_CLOCK_HZ,
+                   },
+                   width,
+                   height
+      ),
+      ssd1306_config_(config) { }
+
+  ~SSD1306() final = default;
+
+  //
+  // PUBLIC METHODS
+
+  /**
+   * Provides the SSD1306 vendor configuration to IPanelDevice consumers.
+   *
+   * @return Address of the SSD1306 vendor configuration structure.
+   */
+  void *vendor_config() override
+  {
+    return &ssd1306_config_;
+  }
+
+  //
+  // PUBLIC MEMBERS
+
+  /// SSD1306 configuration structure.
+  esp_lcd_panel_ssd1306_config_t ssd1306_config_;
+
+private:
+
+  //
+  // PRIVATE METHODS
+
+  /// Initializes the ESP LCD panel handle for the SSD1306 device.
+  void init_panel(esp_lcd_panel_dev_config_t &config,
+                  esp_lcd_panel_io_handle_t io,
+                  esp_lcd_panel_handle_t &panel) override
+  {
+    ESP_ERROR_CHECK(esp_lcd_new_panel_ssd1306(io, &config, &panel));
+  }
+};
+
+#endif // SSD1306_H
--- a/esp/cpp/07_lcd-panel-i2c/main/time_keeper.h
+++ b/esp/cpp/07_lcd-panel-i2c/main/time_keeper.h
@@ -0,0 +1,161 @@
+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com                     ##
+##############################################################################
+*/
+#ifndef TIME_KEEPER_H
+#define TIME_KEEPER_H
+
+#include <esp_log.h>
+#include <esp_timer.h>
+
+#include "i2c.h"
+
+/**
+ * Stores arguments and ESP timer handle for a Timer.
+ * In general Timers should be used via the TimeKeeper interface only.
+ *
+ * Timers cannot be copied, and are only created by a TimeKeeper instance.
+ * The TimeKeeper can delete existing Timers, calling it's destructor.
+ * The ESP timer will be deleted when this class desctructor is called.
+ */
+struct Timer {
+  explicit Timer(esp_timer_create_args_t args) :
+      args_(args), esp_timer_(nullptr)
+  {
+    ESP_LOGI(TAG, "Creating esp_timer with name: '%s'", args_.name);
+    ESP_ERROR_CHECK(esp_timer_create(&args, &esp_timer_));
+  }
+
+  ~Timer()
+  {
+    ESP_LOGI(TAG, "Destroying esp_timer with name: '%s'", args_.name);
+    ESP_ERROR_CHECK(esp_timer_delete(esp_timer_));
+  }
+
+  Timer(const Timer &) = delete;
+
+  Timer(Timer &) = delete;
+
+  Timer &operator=(Timer &) = delete;
+
+  //
+  // PUBLIC MEMBERS
+
+  /// Arguments passed to ESP API during timer creation.
+  esp_timer_create_args_t args_;
+
+  /// ESP timer handle.
+  esp_timer_handle_t esp_timer_;
+
+private:
+
+  //
+  // PRIVATE MEMBERS
+
+  /// Tag used for ESP logging.
+  constexpr static const char *TAG = "Timer";
+};
+
+/**
+ * ESP timer mananger class.
+ *
+ * Timers should only be accessed using the get_handle method.
+ * If the Timer destructor is called the underlying ESP timer will be deleted.
+ */
+struct TimeKeeper {
+  /// Timer handle type used for referring to Timers.
+  using TimerHandle = Timer *;
+
+  //
+  // GETTERS
+
+  TimerHandle get_handle(const char *name)
+  {
+    return &managed_timers_.at(name);
+  }
+
+  TimerHandle operator[](const char *name) { return get_handle(name); }
+
+  //
+  // PUBLIC METHODS
+
+  /**
+   * Create a new managed Timer with the provided ESP arguments.
+   * The timer can be retrieved later using the args.name field value.
+   *
+   * @param args ESP timer creation arguments.
+   * @return TimerHandle Handle to a Timer managed by this TimeKeeper.
+   * @sa get_handle
+   * @sa operator[](const char*)
+   */
+  [[maybe_unused]] TimerHandle create_timer(esp_timer_create_args_t args)
+  {
+    auto rt = managed_timers_.emplace(args.name, args);
+    if (!rt.second) {
+      ESP_LOGE(TAG, "Timer already exists with name '%s'", args.name);
+      return nullptr;
+    }
+    return &rt.first->second;
+  }
+
+  /// Stop a Timer with the given name.
+  [[maybe_unused]] void stop_timer(const char *name)
+  {
+    ESP_ERROR_CHECK(esp_timer_stop(get_handle(name)->esp_timer_));
+  }
+
+  /// Delete a Timer with the given name.
+  [[maybe_unused]] void delete_timer(const char *name)
+  {
+    if (managed_timers_.erase(name) == 0) {
+      ESP_LOGE(TAG, "Attempt to delete timer that does not exist: '%s'", name);
+    }
+  }
+
+  /// Create a Timer with the ESP args and call esp_timer_start_periodic.
+  [[maybe_unused]] void
+  start_new_timer_periodic(esp_timer_create_args_t args,
+                           uint64_t period)
+  {
+    start_timer_periodic(create_timer(args)->args_.name, period);
+  }
+
+  /// Calls esp_timer_start_periodic on the Timer with the given name.
+  [[maybe_unused]] void start_timer_periodic(const char *name,
+                                             uint64_t period)
+  {
+    ESP_ERROR_CHECK(
+        esp_timer_start_periodic(get_handle(name)->esp_timer_, period));
+  }
+
+  /// Create a Timer with the ESP args and call esp_timer_start_once.
+  [[maybe_unused]] void start_new_timer_once(esp_timer_create_args_t args,
+                                             uint64_t timeout_us)
+  {
+    start_timer_once(create_timer(args)->args_.name, timeout_us);
+  }
+
+  /// Calls esp_timer_start_once on the Timer with the given name.
+  [[maybe_unused]] void start_timer_once(const char *name,
+                                         uint64_t timeout_us)
+  {
+    ESP_ERROR_CHECK(
+        esp_timer_start_once(get_handle(name)->esp_timer_, timeout_us));
+  }
+
+private:
+
+  //
+  // PRIVATE MEMBERS
+
+  /// Existing ESP timers created for this TimeKeeper instance.
+  std::unordered_map<const char *, Timer> managed_timers_;
+
+  /// Tag used for ESP logging.
+  constexpr static const char *TAG = "TimeKeeper";
+};
+
+#endif // TIME_KEEPER_H
--- a/esp/cpp/07_lcd-panel-i2c/schematic.png
+++ b/esp/cpp/07_lcd-panel-i2c/schematic.png
--- a/esp/cpp/07_lcd-panel-i2c/sdkconfig
+++ b/esp/cpp/07_lcd-panel-i2c/sdkconfig
--- a/esp/cpp/ESP32-basic-starter-kit.pdf
+++ b/esp/cpp/ESP32-basic-starter-kit.pdf
--- a/esp/cpp/ESP32-dev-module.png
+++ b/esp/cpp/ESP32-dev-module.png
--- a/esp/cpp/README.md
+++ b/esp/cpp/README.md
@@ -0,0 +1,22 @@
+# esp
+
+```bash
+shaunrd0/klips/esp/
+├── 01_led-button               # Simple LED circuit controlled by an on board button.
+├── 02_led-button-web           # LED controlled by a button or within a web browser.
+├── 03_temp-humidity-web        # Temperature and humidity sensor within a web browser.
+├── 04_esp-idf-arduino          # CMake example instead of Arduino IDE for ESP development.
+├── 05_temp-humidity-web        # Temperature and humidity sensor within a web browser.
+├── 06_i2c-scanner              # Simple I2C device scanner.
+├── 07_lcd-panel-i2c            # Drawing to a LCD display with LVGL over I2C.
+├── ESP32-basic-starter-kit.pdf # PDF for tutorials in ESP32 starter kit.
+├── ESP32-dev-module.png
+└── README.md
+```
+
+Examples 1-3 are built using the Arduino IDE.
+
+All examples after `04_esp-idf-arduino` are built with cmake and the [ESP-IDF](https://github.com/espressif/esp-idf).
+
+[Arduino ESP32 GitHub](https://github.com/espressif/arduino-esp32) \
+[Arduino ESP32 API reference](https://docs.espressif.com/projects/arduino-esp32/en/latest/libraries.html)
--- a/javascript/README.md
+++ b/javascript/README.md
@@ -1,9 +1,9 @@
-# Javascript
+# javascript

 This directory contains Javascript projects and examples that I've made.

-```
-github.com/shaunrd0/klips/javascript
+```bash
+shaunrd0/klips/javascript
 ├── webgl      # Examples of using WebGL within JS
 └── README.md
 ```
--- a/python/README.md
+++ b/python/README.md
@@ -1,12 +1,13 @@
+# python

 This directory contains a collection of Python scripts or CLI tools that I've made.
-Each of these projects provide a `requirements.txt` that can be used to 
+Each of these projects provide a `requirements.txt` that can be used to
 install the required Python packages and dependencies.

 To install Python 3.9 and `pip`

 ```bash
-sudo apt install python3.9 python3-pip 
+sudo apt install python3.9 python3-pip
 python3.9 -m pip install -U pip
 ```
Author	SHA1	Message	Date
Shaun Reed	a3d6a85516	Includes.	2025-03-01 17:08:44 -05:00
Shaun Reed	a91352ffcd	Make Pixel static.	2025-03-01 16:49:15 -05:00
Shaun Reed	fc0fd98426	Clean up comments.	2025-03-01 16:15:21 -05:00
Shaun Reed	1a7da67bdb	Clean up flush callback.	2025-03-01 15:43:40 -05:00
Shaun Reed	00ea5dae20	Refactor ownership of draw buffer data.	2025-03-01 10:34:24 -05:00
Shaun Reed	63899a606a	Clean up some comments.	2025-02-26 19:26:53 -05:00
Shaun Reed	25b4564a8b	Fix ESP logging tags.	2025-02-16 14:40:53 -05:00
Shaun Reed	e2bb406139	Finish cleanup.	2025-02-16 14:32:00 -05:00
Shaun Reed	96b6a8bec9	Rename project.	2025-02-16 11:48:15 -05:00
Shaun Reed	509b57fedb	Add time_keeper.h + Refactor most classes to header only.	2025-02-16 11:24:35 -05:00
Shaun Reed	75b51f0c7c	Cleanup remaining warnings.	2025-02-16 09:41:09 -05:00
Shaun Reed	74404b1a44	Make TimeKeeper a static member of Display.	2025-02-16 09:12:24 -05:00
Shaun Reed	9140ba5fb4	Add Timer and TimeKeeper to Display.	2025-02-16 08:58:40 -05:00
Shaun Reed	c9ec16d70c	More cleanup.	2025-02-16 07:25:02 -05:00
Shaun Reed	5c61fbd378	Clean code.	2025-02-16 06:38:47 -05:00
Shaun Reed	8636de8f2f	Pass RST pin through I2C.	2025-02-15 18:16:25 -05:00
Shaun Reed	6493988324	Add panel.h, panel.cpp.	2025-02-15 17:52:33 -05:00
Shaun Reed	64d817e362	Move I2C into header file.	2025-02-15 17:44:58 -05:00
Shaun Reed	b3d830cdeb	Add IPanelDevice.	2025-02-15 17:12:45 -05:00
Shaun Reed	670a523a16	Clean code.	2025-02-15 14:13:42 -05:00
Shaun Reed	cc5bffd1e7	Store configs used in ctors.	2025-02-15 10:26:27 -05:00
Shaun Reed	03784ac097	Move classes to separate files.	2025-02-15 10:11:49 -05:00
Shaun Reed	9e912048ab	Checkpoint adding SSD1306 and PanelDevice.	2025-02-15 09:41:13 -05:00
Shaun Reed	0743fc4a5e	Factor out Panel.	2025-02-14 17:47:44 -05:00
Shaun Reed	046dfbb6e6	Add Display::set_text.	2025-02-14 17:19:13 -05:00
Shaun Reed	ef7a027cf0	Factor out I2C.	2025-02-14 16:49:38 -05:00
Shaun Reed	2dd099f26e	Improve ScopedLock.	2025-02-14 16:33:41 -05:00
Shaun Reed	8aaed133e8	Update Display getters.	2025-02-14 15:58:37 -05:00
Shaun Reed	58a83590ca	Add ScopedLock for LVGL.	2025-02-14 15:50:35 -05:00
Shaun Reed	dd5335815c	Checkpoint	2025-02-14 15:02:49 -05:00
Shaun Reed	e9d5ef46d1	Replace lcd project	2025-02-13 19:31:58 -05:00
Shaun Reed	356d8ccd9a	WIP debug I2C driver error E (413) i2c: CONFLICT! driver_ng is not allowed to be used with this old driver	2025-02-09 20:04:25 -05:00
Shaun Reed	4063921340	Add I2C scanner example.	2025-02-09 11:59:38 -05:00
Shaun Reed	043fa2fabb	WIP lcd	2025-02-09 01:18:06 -05:00
Shaun Reed	6cd7d7db29	[esp] Port temp-humidity-web example to cmake.	2025-02-08 12:50:06 -05:00
Shaun Reed	17c559a31f	[esp] Add ESP-IDF cmake example.	2025-02-08 12:47:01 -05:00
Shaun Reed	e6ba60da89	[esp] Add temperature and humidity example.	2025-02-01 23:49:53 -05:00
Shaun Reed	8bf174d256	[esp] Add ESP examples.	2025-02-01 14:33:40 -05:00
Shaun Reed	5f9f508581	[cpp] Remove ignores	2022-12-24 10:18:19 -05:00
Shaun Reed	3b6ecaa5e9	[cpp] Add Qt Desginer widget plugin examples	2022-12-24 10:16:30 -05:00