Fix README for lcd example.

README.md

@@ -3,7 +3,7 @@
 This repository is a collection of useful code snippets and configurations.
 
 ```bash
-github.com/shaunrd0/klips/
+shaunrd0/klips/
 ├── ansible     # Ansible roles, playbooks, and examples
 ├── blockchain  # Blockchain related project templates and examples
 ├── cpp         # C++ programs, datastructures, and other examples
@@ -12,6 +12,6 @@ github.com/shaunrd0/klips/
 ├── figlet      # Figlet fonts I like :)
 ├── javascript  # Javascript projects and examples
 ├── python      # Python scripts and tools I've made
-├── README.md
-└── scripts     # Bash scripts
+├── scripts     # Bash scripts
+└── README.md
 ```

cpp/CMakeLists.txt

@@ -1,6 +1,6 @@
 ################################################################################
 ## Author: Shaun Reed                                                         ##
-## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved                ##
 ## About: A root project for practicing C++                                   ##
 ##        This project can be built to debug and run all nested projects      ##
 ##        Or, any subdirectory with a project() statement can be selected     ##
@@ -16,10 +16,32 @@ project(
     DESCRIPTION "A root project for several small cpp practice projects"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 add_compile_options("-Wall")
 
+option(KLIPS_CCACHE "Enable ccache" ON)
+
+if (KLIPS_CCACHE)
+  find_program(SCCACHE_PATH sccache)
+  if(SCCACHE_PATH)
+    message(STATUS "[Klips] Found sccache: ${SCCACHE_PATH}")
+    set(CMAKE_CXX_COMPILER_LAUNCHER ${SCCACHE_PATH})
+    set(CMAKE_C_COMPILER_LAUNCHER ${SCCACHE_PATH})
+  else()
+    message(STATUS "[Klips] Failed to find sccache, falling back to ccache.")
+    find_program(CCACHE_PATH ccache)
+    if(CCACHE_PATH)
+      message(STATUS "[Klips] Found ccache: ${CCACHE_PATH}")
+      set(CMAKE_CXX_COMPILER_LAUNCHER ${CCACHE_PATH})
+      set(CMAKE_C_COMPILER_LAUNCHER ${CCACHE_PATH})
+    else()
+      message(WARNING "[Klips] Failed to find sccache and ccache. Compilation will not be cached.")
+    endif()
+  endif()
+endif()
+
 add_subdirectory(algorithms)
 add_subdirectory(catch2)
 add_subdirectory(cmake-example)
@@ -28,4 +50,15 @@ add_subdirectory(datastructs)
 add_subdirectory(graphics)
 add_subdirectory(multithreading)
 add_subdirectory(patterns)
-add_subdirectory(qt)
+
+find_package(Qt6 COMPONENTS UiPlugin Core Gui Widgets)
+if (NOT Qt6_FOUND)
+  message(
+      WARNING
+      "[Klips] Qt examples will not be built.\n"
+      "On Ubuntu 24.04 Qt6 can be installed using apt:\n"
+      "  sudo apt install qt6-base-dev qt6-tools-dev\n"
+  )
+else()
+  add_subdirectory(qt)
+endif()

cpp/algorithms/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for practicing various algorithms in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 

cpp/algorithms/graphs/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for practicing algorithms using graphs in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 

cpp/algorithms/graphs/object/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "Practice implementing and using object graphs in C++"
     LANGUAGES CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     algo-graphs-object graph.cpp

cpp/algorithms/graphs/simple/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "Practice implementing and using simple graphs in C++"
     LANGUAGES CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     algo-graphs-simple graph.cpp

cpp/algorithms/graphs/simple/lib-graph.cpp

@@ -8,9 +8,8 @@
 ################################################################################
 */
 
-#include <algorithm>
 #include "lib-graph.hpp"
-
+#include <algorithm>
 
 void Graph::BFS(int startNode)
 {

cpp/algorithms/graphs/simple/lib-graph.hpp

@@ -15,6 +15,7 @@
 #include <unordered_map>
 #include <unordered_set>
 #include <vector>
+#include <cstdint>
 
 
 class Graph {

cpp/algorithms/graphs/templated/CMakeLists.txt

@@ -14,5 +14,6 @@ project(
     DESCRIPTION "Practice implementing and using templated graphs in C++"
     LANGUAGES CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(algo-graphs-templated graph.cpp)

cpp/algorithms/graphs/templated/lib-graph.hpp

@@ -18,6 +18,7 @@
 #include <unordered_set>
 #include <utility>
 #include <vector>
+#include <cstdint>
 
 
 /******************************************************************************/

cpp/algorithms/graphs/weighted/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "Practice implementing and using weighted graphs in C++"
     LANGUAGES CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     algo-graphs-weighted graph.cpp

cpp/algorithms/graphs/weighted/lib-graph.hpp

@@ -18,6 +18,7 @@
 #include <unordered_set>
 #include <utility>
 #include <vector>
+#include <cstdint>
 
 
 /******************************************************************************/

cpp/algorithms/sorting/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for practicing various sorting algorithms in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 

cpp/algorithms/sorting/insertion/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for practicing insertion sort in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     algo-sort-insertion insertion-sort.cpp

cpp/algorithms/sorting/merge/CMakeLists.txt

@@ -14,6 +14,8 @@ project (
     DESCRIPTION "A project for practicing merge sort in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
+
 add_executable(
     algo-sort-merge merge-sort.cpp
     lib-merge.cpp lib-merge.h

cpp/algorithms/sorting/merge/lib-merge.cpp

@@ -12,6 +12,7 @@
 #include <algorithm>
 #include <iostream>
 #include <vector>
+#include <cstdint>
 
 void MergeSort(std::vector<int> &array, size_t lhs, size_t rhs)
 {

cpp/algorithms/sorting/quick/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for practicing quick sort in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     algo-sort-quick quick-sort.cpp

cpp/algorithms/sorting/radix/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for practicing radix sort in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     algo-sort-radix radix-sort.cpp

cpp/algorithms/sorting/selection/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for practicing selection sort in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     algo-sort-select select-sort.cpp

cpp/algorithms/trees/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for practicing algorithms using trees in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 

cpp/algorithms/trees/binary/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for testing BST algorithms"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     algo-trees-bst driver.cpp

cpp/algorithms/trees/redblack/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for testing red-black tree algorithms"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     algo-trees-redblack driver.cpp

cpp/algorithms/trees/redblack/redblack.h

@@ -12,6 +12,7 @@
 #define REDBLACK_H
 
 #include <iostream>
+#include <cstdint>
 
 enum Color {Black, Red};
 

cpp/catch2/CMakeLists.txt

@@ -14,18 +14,22 @@ project(
     DESCRIPTION     "Practice project for learning Catch2"
     LANGUAGES       CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_compile_options(-Wall)
 
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/bin)
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 
 Include(FetchContent)
 FetchContent_Declare(
     Catch2
     GIT_REPOSITORY https://github.com/catchorg/Catch2.git
-    GIT_TAG        v3.0.1
+    GIT_TAG        v3.4.0
 )
 FetchContent_MakeAvailable(Catch2)
 
-add_subdirectory(src)
-add_subdirectory(test)
+add_library(klips SHARED src/klips.cpp)
+target_include_directories(klips PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include)
+
+add_executable(test_klips src/test_klips.cpp)
+target_link_libraries(test_klips PUBLIC Catch2::Catch2WithMain klips)

cpp/catch2/src/CMakeLists.txt

@@ -1,22 +0,0 @@
-################################################################################
-## Author: Shaun Reed                                                         ##
-## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
-## About: Practice project for testing with catch2 framework                  ##
-##                                                                            ##
-## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
-################################################################################
-
-cmake_minimum_required(VERSION 3.15)
-
-project(
-    #[[NAME]]       Catch2
-    VERSION         1.0
-    DESCRIPTION     "Practice project for learning Catch2"
-    LANGUAGES       CXX
-)
-
-add_compile_options(-Wall)
-add_definitions("-std=c++17")
-
-add_library(klips SHARED klips.cpp)
-target_include_directories(klips PRIVATE ${CMAKE_SOURCE_DIR}/include)

cpp/catch2/src/test_klips.cpp

@@ -2,7 +2,8 @@
 
 #include <iostream>
 
-#include "../bin/catch.hpp"
+#include "catch2/catch_all.hpp"
+
 #include "klips.hpp"
 #include "type_name.hpp"
 
@@ -139,7 +140,7 @@ template <> template <bool must_find> void test_config_get<std::string>::run() {
 TEMPLATE_PRODUCT_TEST_CASE("Test", "[test]", test_config_get,
                            (int, std::string)) {
   TT();
-  TestType t;
+  // TestType t;
   test_config_get<int> s;
   s.template run<true>();
   //  TestType t;

cpp/catch2/test/CMakeLists.txt

@@ -1,22 +0,0 @@
-################################################################################
-## Author: Shaun Reed                                                         ##
-## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
-## About: Practice project for testing with catch2 framework                  ##
-##                                                                            ##
-## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
-################################################################################
-
-cmake_minimum_required(VERSION 3.15)
-
-project(
-    #[[NAME]]       Catch2
-    VERSION         1.0
-    DESCRIPTION     "Practice project for learning Catch2"
-    LANGUAGES       CXX
-)
-
-add_compile_options(-Wall)
-
-add_executable(test_klips test_klips.cpp)
-target_link_libraries(test_klips PRIVATE Catch2::Catch2WithMain klips)
-target_include_directories(test_klips PRIVATE ${CMAKE_SOURCE_DIR}/include)

cpp/cmake-example/CMakeLists.txt

@@ -22,6 +22,7 @@ project (
     DESCRIPTION "A basic CMake template for C++ projects"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 # Include any directories the compiler may need
 include_directories(./include)

cpp/cryptography/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for practicing cryptography in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 

cpp/cryptography/columnar-transposition/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "Practice implementing columnar transposition in C++"
     LANGUAGES CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     crypto-columnar-transposition driver.cpp

cpp/datastructs/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for practicing various data structures in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 

cpp/datastructs/binarysearchtree/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for testing a basic implementation of a BST"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     data-bst driver.cpp

cpp/datastructs/binarysearchtree/bst.cpp

@@ -10,10 +10,11 @@
 
 #include "bst.h"
 
+#include <cstdint>
 
 /********************************************************************************
-* Constructors, Destructors, Operators
-*********************************************************************************/
+ * Constructors, Destructors, Operators
+ *********************************************************************************/
 
 /** Copy Assignment Operator
  * @brief Empty the calling object's root BinaryNode, and copy the rhs data

cpp/datastructs/circledoublelist/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "Project for testing circular doubly linked list implementation"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     data-circular-doubly-linked-list driver.cpp

cpp/datastructs/circledoublelist/circledoublelist.cpp

@@ -10,6 +10,7 @@
 
 #include "circledoublelist.h"
 
+#include <cstdint>
 
 /******************************************************************************
  * Constructors, Destructors, Operators

cpp/datastructs/circlesinglelist/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "Project for testing circular singly linked list implementation"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     data-circular-singly-linked-list driver.cpp

cpp/datastructs/circlesinglelist/circlesinglelist.cpp

@@ -10,6 +10,7 @@
 
 #include "circlesinglelist.h"
 
+#include <cstdint>
 
 /******************************************************************************
  * Constructors, Destructors, Operators

cpp/datastructs/doublelist/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for testing a doubly linked list implementation"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     data-doubly-linked-list driver.cpp

cpp/datastructs/doublelist/doublelist.cpp

@@ -10,6 +10,7 @@
 
 #include "doublelist.h"
 
+#include <cstdint>
 
 /******************************************************************************
  * Constructors, Destructors, Operators

cpp/datastructs/maxheap/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for testing a max heap implementation"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     data-max-heap driver.cpp

cpp/datastructs/maxheap/maxheap.cpp

@@ -10,10 +10,11 @@
 
 #include "maxheap.h"
 
+#include <cstdint>
 
 /********************************************************************************
-* Constructors, Destructors, Operators
-*********************************************************************************/
+ * Constructors, Destructors, Operators
+ *********************************************************************************/
 
 /** default constructor
  *  Constructs a heap with the given default values

cpp/datastructs/queuelist/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "Project for testing queue implementation"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     data-queue driver.cpp

cpp/datastructs/queuelist/queuelist.cpp

@@ -10,6 +10,7 @@
 
 #include "queuelist.h"
 
+#include <cstdint>
 
 /******************************************************************************
  * Constructors, Destructors, Operators

cpp/datastructs/singlelist/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for testing a singly linked list implementation"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     data-singly-linked-list driver.cpp

cpp/datastructs/singlelist/singlelist.cpp

@@ -10,6 +10,7 @@
 
 #include "singlelist.h"
 
+#include <cstdint>
 
 /******************************************************************************
  * Constructors, Destructors, Operators

cpp/datastructs/stacklist/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for testing a Stack implementation"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     data-stack driver.cpp

cpp/datastructs/stacklist/stacklist.cpp

@@ -10,6 +10,7 @@
 
 #include "stacklist.h"
 
+#include <cstdint>
 
 /******************************************************************************
  * Constructors, Destructors, Operators

cpp/datastructs/templates/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for practicing templated data structures in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_subdirectory(doublelist)
 add_subdirectory(queuelist)

cpp/datastructs/templates/doublelist/CMakeLists.txt

@@ -14,5 +14,6 @@ project (
     DESCRIPTION "A project for practicing templated doubly linked list implementations"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(data-templates-doubly-linked-list driver.cpp)

cpp/datastructs/templates/queuelist/CMakeLists.txt

@@ -14,5 +14,6 @@ project (
     DESCRIPTION "A project for practicing templated queue implementations"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(data-templates-queue driver.cpp)

cpp/datastructs/templates/stacklist/CMakeLists.txt

@@ -14,5 +14,6 @@ project (
     DESCRIPTION "A project for practicing templated Stack implementations"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(data-templates-stack driver.cpp)

cpp/datastructs/templates/vector/CMakeLists.txt

@@ -14,5 +14,6 @@ project (
     DESCRIPTION "A project for practicing templated Vector implementations"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(data-templates-vectors driver.cpp)

cpp/datastructs/vector/CMakeLists.txt

@@ -14,6 +14,7 @@ project (
     DESCRIPTION "A project for testing a basic Vector implementation"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     data-vectors driver.cpp

cpp/datastructs/vector/vector.cpp

@@ -10,6 +10,7 @@
 
 #include "vector.h"
 
+#include <cstdint>
 
 /******************************************************************************
  * Constructors, Destructors, Operators

cpp/graphics/CMakeLists.txt

@@ -1,6 +1,6 @@
 ################################################################################
 ## Author: Shaun Reed                                                         ##
-## Legal: All Content (c) 2021 Shaun Reed, all rights reserved                ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved                ##
 ## About: A root project for practicing C++                                   ##
 ##        This project can be built to debug and run all nested projects      ##
 ##        Or, any subdirectory with a project() statement can be selected     ##
@@ -16,6 +16,7 @@ project(
     DESCRIPTION "A root project for practicing graphics programming in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 

cpp/graphics/opengl-cmake/CMakeLists.txt

@@ -1,6 +1,6 @@
 ################################################################################
 ## Author: Shaun Reed                                                         ##
-## Legal: All Content (c) 2021 Shaun Reed, all rights reserved                ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved                ##
 ##                                                                            ##
 ## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
 ################################################################################
@@ -8,40 +8,46 @@
 # Define CMake version
 cmake_minimum_required(VERSION 3.15)
 
+include(FetchContent)
 project(
     #[[NAME]]    OpenGL-Cmake
     DESCRIPTION  "Example project for building OpenGL projects with CMake"
     LANGUAGES    CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_library(graphics-lib-opengl src/lib-opengl-test.cpp)
 target_include_directories(graphics-lib-opengl PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/src)
 
 # Find OpenGL package
-find_package(OpenGL REQUIRED)
-if (OPENGL_FOUND)
-  # Link opengl-test executable to OpenGL
-  target_include_directories(graphics-lib-opengl PUBLIC ${OPENGL_INCLUDE_DIR})
-  target_link_libraries(graphics-lib-opengl PUBLIC ${OPENGL_LIBRARIES})
-else()
+find_package(OpenGL)
+if (NOT OPENGL_FOUND)
   message(
-      "Error: CMake was unable to find the OpenGL package\n"
-      "Please install OpenGL and try again\n"
+      "[Klips] Error: CMake was unable to find OpenGL.\n"
+      "On Ubuntu 24.04 OpenGL can be installed using apt:\n"
+      "  sudo apt install libopengl-dev libgl1-mesa-dev mesa-common-dev libglu1-mesa-dev\n"
   )
 endif()
+# Link opengl-test executable to OpenGL
+message(STATUS "[Klips] Found OpenGL: ${OPENGL_INCLUDE_DIR}")
+target_include_directories(graphics-lib-opengl PUBLIC ${OPENGL_INCLUDE_DIR})
+target_link_libraries(graphics-lib-opengl PUBLIC ${OPENGL_LIBRARIES})
 
-# Find GLUT package
-find_package(GLUT REQUIRED)
-if (GLUT_FOUND)
-  # Link lib-opengl-test executable to GLUT
-  target_include_directories(graphics-lib-opengl PUBLIC ${GLUT_INCLUDE_DIR})
-  target_link_libraries(graphics-lib-opengl PUBLIC ${GLUT_LIBRARIES})
-else()
+find_package(GLUT QUIET)
+if(NOT GLUT_FOUND)
   message(
-      "Error: CMake was unable to find the GLUT package\n"
-      "Please install GLUT (freeglut3-dev) and try again\n"
+      FATAL_ERROR
+      "[Klips] Failed to fetch GLUT. Could not find dependency X11 input libraries.\n"
+      "On Ubuntu 24.04 Xi can be installed using apt:\n"
+      "  sudo apt install libxi-dev\n"
+      "Alternatively, on Ubuntu 24.04 GLUT can be installed with apt:\n"
+      "  sudo apt install freeglut3-dev\n"
   )
 endif()
+message(STATUS "[Klips] Found GLUT: ${GLUT_INCLUDE_DIR}")
+# Link lib-opengl-test executable to GLUT
+target_include_directories(graphics-lib-opengl PUBLIC ${GLUT_INCLUDE_DIR})
+target_link_libraries(graphics-lib-opengl PUBLIC ${GLUT_LIBRARIES})
 
 # Add test executable
 add_executable(graphics-cmake-opengl apps/test-gl.cpp)

cpp/graphics/sdl-cmake/CMakeLists.txt

@@ -1,6 +1,6 @@
 ################################################################################
 ## Author: Shaun Reed                                                         ##
-## Legal: All Content (c) 2021 Shaun Reed, all rights reserved                ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved                ##
 ##                                                                            ##
 ## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
 ################################################################################
@@ -13,6 +13,7 @@ project(
     DESCRIPTION  "Example project for building SDL projects with CMake"
     LANGUAGES    CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 # Add Library
 add_library(
@@ -27,31 +28,30 @@ target_include_directories(            # When calling library, include a directo
 )
 
 # Search for SDL2 package
-find_package(SDL2 REQUIRED sdl2)
+find_package(SDL2 QUIET)
+if (NOT SDL2_FOUND)
+  message(FATAL_ERROR
+      "[Klips] Failed to find SDL2.\n"
+      "On Ubuntu 24.04 SDL2 can be installed using apt:\n"
+      "  sudo apt install libsdl2-dev\n"
+  )
+endif()
+message(STATUS "[Klips] Found SDL2: ${SDL2_INCLUDE_DIRS}")
 
-# If SDL2 was found successfully, link to lib-sdl-test
-if (SDL2_FOUND)
-  # Any target that links with this library will also link to SDL2
-  # + Because we choose PUBLIC visibility
-  target_include_directories(graphics-lib-sdl PUBLIC ${SDL2_INCLUDE_DIRS})
-  target_link_libraries(graphics-lib-sdl PUBLIC "${SDL2_LIBRARIES}")
+# Any target that links with this library will also link to SDL2
+# + Because we choose PUBLIC visibility
+target_include_directories(graphics-lib-sdl PUBLIC ${SDL2_INCLUDE_DIRS})
+target_link_libraries(graphics-lib-sdl PUBLIC "${SDL2_LIBRARIES}")
 
-  # Creating executable
-  add_executable(
+# Creating executable
+add_executable(
     graphics-cmake-sdl  # Exe name
     apps/sdl-test.cpp   # Exe Source(s)
-  )
+)
 
-  # Linking the exe to library
-  target_link_libraries(
+# Linking the exe to library
+target_link_libraries(
     graphics-cmake-sdl    # Executable to link
     PRIVATE               # Visibility
     graphics-lib-sdl      # Library to link
-  )
-
-else()
-  message(
-      "Error: CMake was unable to find SDL2 package.\n"
-      "Please install the libsdl2-dev package and try again.\n"
-  )
-endif()
+)

cpp/multithreading/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "Practice with multithreaded programming in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 add_compile_options("-Wall")

cpp/multithreading/conditions/CMakeLists.txt

@@ -18,6 +18,7 @@ project(
     DESCRIPTION "Example of condition_variables in multithreaded C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     multithread-conditions driver.cpp

cpp/multithreading/deadlock/CMakeLists.txt

@@ -18,6 +18,7 @@ project(
     DESCRIPTION "Example and solution for deadlocks in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     multithread-deadlock driver.cpp

cpp/multithreading/livelock/CMakeLists.txt

@@ -18,6 +18,7 @@ project(
     DESCRIPTION "Example and solution for livelocks in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     multithread-livelock driver.cpp

cpp/multithreading/race-condition/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "Example and solution for race conditions"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     multithread-race-condition driver.cpp

cpp/patterns/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "A project for practicing various design patterns in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 

cpp/patterns/abstract-factory/CMakeLists.txt

@@ -13,6 +13,7 @@ project(
     DESCRIPTION "An example of the abstract factory design pattern in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 add_compile_options("-Wall")
 
 add_executable(

cpp/patterns/adapter/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "An example of the adapter design pattern in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 add_compile_options("-Wall")
 
 add_executable(

cpp/patterns/adapter/adapter.hpp

@@ -2,6 +2,7 @@
 #ifndef ADAPTER_HPP
 #define ADAPTER_HPP
 
+#include <ctime>
 #include <random>
 
 // Target implementation to adapt to a new interface

cpp/patterns/bridge/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "An example of the bridge design pattern in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 add_compile_options("-Wall")
 
 add_executable(

cpp/patterns/factory/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "An example of the factory design pattern in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 add_compile_options("-Wall")
 
 add_executable(

cpp/patterns/observer/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "An example of the state design pattern in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 add_compile_options("-Wall")
 
 add_executable(

cpp/patterns/prototype/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "An example of the prototype design pattern in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 add_compile_options("-Wall")
 
 add_executable(

cpp/patterns/singleton/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "An example of the singleton design pattern in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_executable(
     patterns-singleton main.cpp

cpp/patterns/state/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "An example of the state design pattern in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 add_compile_options("-Wall")
 
 add_executable(

cpp/patterns/visitor/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "An example of the visitor design pattern in C++"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 add_compile_options("-Wall")
 
 add_executable(

cpp/qt/CMakeLists.txt

@@ -14,6 +14,7 @@ project(
     DESCRIPTION "A root project for several small Qt6 practice projects"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 add_compile_options("-Wall")

cpp/qt/designer-plugin-collection/CMakeLists.txt

@@ -14,6 +14,9 @@ project(
     DESCRIPTION     "Example of a widget plugin collection for Qt Designer"
     LANGUAGES       CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
+# Lowercase string to use as a slug for executable names for identification.
+string(TOLOWER ${PROJECT_NAME} PROJECT_NAME_LOWER)
 
 include(GenerateExportHeader)
 
@@ -51,43 +54,56 @@ endif()
 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)
+find_package(Qt6 COMPONENTS UiPlugin Core Gui Widgets)
+if (NOT Qt6_FOUND)
+    message(
+        FATAL_ERROR
+        "[Klips] Error: CMake was unable to find Qt6 libraries.\n"
+        "The example will not be built until the build is configured with these packages installed.\n"
+        "On Ubuntu 24.04 Qt6 can be installed using apt:\n"
+        "  sudo apt-get install qt6-base-dev qt6-tools-dev\n"
+    )
+endif()
 
 # Creating a library with two plugins for the collection.
-qt_add_library(widget-plugin-library
+set(WIDGET_PLUGIN_LIBRARY widget-plugin-library_${PROJECT_NAME_LOWER})
+qt_add_library(${WIDGET_PLUGIN_LIBRARY}
     textview.cpp textview.h
     widgetplugin.cpp widgetplugin.h
 )
-target_sources(widget-plugin-library PRIVATE
+target_sources(${WIDGET_PLUGIN_LIBRARY} PRIVATE
     textview.cpp textview.h
     treeview.cpp treeview.h
     widgetplugin.cpp widgetplugin.h
 )
-set_target_properties(widget-plugin-library PROPERTIES
+set_target_properties(${WIDGET_PLUGIN_LIBRARY} PROPERTIES
     WIN32_EXECUTABLE TRUE
     MACOSX_BUNDLE TRUE
 )
-target_link_libraries(widget-plugin-library
+target_link_libraries(${WIDGET_PLUGIN_LIBRARY}
     PUBLIC Qt::UiPlugin Qt::Core Qt::Gui Qt::Widgets
 )
 
-install(TARGETS widget-plugin-library
+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)
+generate_export_header(${WIDGET_PLUGIN_LIBRARY}
+    BASE_NAME widget_plugin_library
+    EXPORT_FILE_NAME "${CMAKE_CURRENT_BINARY_DIR}/widget-plugin-library_export.h"
+)
 
 # Creating the collection
-
-qt_add_library(widget-plugin-collection
+set(WIDGET_PLUGIN_COLLECTION widget-plugin-collection_${PROJECT_NAME_LOWER})
+qt_add_library(${WIDGET_PLUGIN_COLLECTION}
     widgetplugincollection.cpp widgetplugincollection.h
 )
-target_link_libraries(widget-plugin-collection
-    Qt6::Widgets Qt6::UiPlugin widget-plugin-library
+target_link_libraries(${WIDGET_PLUGIN_COLLECTION}
+    Qt6::Widgets Qt6::UiPlugin ${WIDGET_PLUGIN_LIBRARY}
 )
-install(TARGETS widget-plugin-collection
+install(TARGETS ${WIDGET_PLUGIN_COLLECTION}
     RUNTIME DESTINATION "${QT_PLUGIN_INSTALL_DIR}"
     BUNDLE DESTINATION "${QT_PLUGIN_INSTALL_DIR}"
     LIBRARY DESTINATION "${QT_PLUGIN_INSTALL_DIR}"
@@ -101,10 +117,11 @@ configure_file("${CMAKE_CURRENT_SOURCE_DIR}/app-dir.h.in"
     @ONLY
 )
 
-qt_add_executable(widget-app
+set(WIDGET_APP widget-app_${PROJECT_NAME_LOWER})
+qt_add_executable(${WIDGET_APP}
     widgetapp.cpp widgetapp.h widgetapp.ui
     main.cpp
 )
-target_link_libraries(widget-app
-    PRIVATE Qt::Widgets widget-plugin-library
+target_link_libraries(${WIDGET_APP}
+    PRIVATE Qt::Widgets ${WIDGET_PLUGIN_LIBRARY}
 )

cpp/qt/designer-plugin-collection/app-dir.h

@@ -1,6 +1,6 @@
 #ifndef APPDIR_H_IN
 #define APPDIR_H_IN
 
-#define APP_DIR "/home/kapper/Code/klips/cpp/qt/designer-plugin-collection"
+#define APP_DIR "/media/shaun/Storage/Code/klips/cpp/qt/designer-plugin-collection"
 
 #endif // APPDIR_H_IN

cpp/qt/designer-plugin/CMakeLists.txt

@@ -1,6 +1,6 @@
 ################################################################################
 ## Author: Shaun Reed                                                         ##
-## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved                ##
 ## About: Example of making widget plugins for Qt Designer                    ##
 ##                                                                            ##
 ## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
@@ -14,6 +14,9 @@ project(
     DESCRIPTION     "Example of a widget plugin for Qt Designer"
     LANGUAGES       CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
+# Lowercase string to use as a slug for executable names for identification.
+string(TOLOWER ${PROJECT_NAME} PROJECT_NAME_LOWER)
 
 include(GenerateExportHeader)
 
@@ -42,35 +45,44 @@ endif()
 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)
+find_package(Qt6 COMPONENTS UiPlugin Core Gui Widgets)
+if (NOT Qt6_FOUND)
+    message(
+        FATAL_ERROR
+        "[Klips] Error: CMake was unable to find Qt6 libraries.\n"
+        "The example will not be built until the build is configured with these packages installed.\n"
+        "On Ubuntu 24.04 Qt6 can be installed using apt:\n"
+        "  sudo apt-get install qt6-base-dev qt6-tools-dev\n"
+    )
+endif()
 
 # Creating the plugin
-
-qt_add_library(widget-plugin)
-target_sources(widget-plugin PRIVATE
+set(WIDGET_PLUGIN widget-plugin_${PROJECT_NAME_LOWER})
+qt_add_library(${WIDGET_PLUGIN})
+target_sources(${WIDGET_PLUGIN} PRIVATE
     text-view.cpp text-view.h
     widget-plugin.cpp widget-plugin.h
 )
-set_target_properties(widget-plugin PROPERTIES
+set_target_properties(${WIDGET_PLUGIN} PROPERTIES
     WIN32_EXECUTABLE TRUE
     MACOSX_BUNDLE TRUE
 )
-target_link_libraries(widget-plugin PUBLIC
+target_link_libraries(${WIDGET_PLUGIN} PUBLIC
     Qt::UiPlugin Qt::Core Qt::Gui Qt::Widgets
 )
 
-install(TARGETS widget-plugin
+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
+set(WIDGET_APP widget-app_${PROJECT_NAME_LOWER})
+qt_add_executable(${WIDGET_APP}
     widget-app.cpp widget-app.h widget-app.ui
     main.cpp
 )
-target_link_libraries(widget-app PRIVATE
-    Qt::Widgets widget-plugin
+target_link_libraries(${WIDGET_APP} PRIVATE
+    Qt::Widgets ${WIDGET_PLUGIN}
 )

cpp/qt/designer/CMakeLists.txt

@@ -1,6 +1,6 @@
 ################################################################################
 ## Author: Shaun Reed                                                         ##
-## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved                ##
 ## About: Practice project for using Qt Designer with custom C++ widgets      ##
 ##                                                                            ##
 ## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
@@ -14,6 +14,7 @@ project(
     DESCRIPTION     "Practice using Qt designer for desktop applications"
     LANGUAGES       CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_compile_options(-Wall)
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
@@ -28,7 +29,16 @@ set(QT_DIR "$ENV{HOME}/Code/Clones/Qt/6.3.1/gcc_64/" CACHE PATH "Path to Qt6")
 
 list(APPEND CMAKE_PREFIX_PATH "${QT_DIR}")
 
-find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
+find_package(Qt6 COMPONENTS Core Gui Widgets)
+if (NOT Qt6_FOUND)
+  message(
+      FATAL_ERROR
+      "[Klips] Error: CMake was unable to find Qt6 libraries.\n"
+      "The example will not be built until the build is configured with these packages installed.\n"
+      "On Ubuntu 24.04 Qt6 can be installed using apt:\n"
+      "  sudo apt-get install qt6-base-dev qt6-tools-dev\n"
+  )
+endif()
 
 qt_add_executable(designer
     designer.cpp designer.h designer.ui

cpp/qt/slots/CMakeLists.txt

@@ -1,6 +1,6 @@
 ################################################################################
 ## Author: Shaun Reed                                                         ##
-## Legal: All Content (c) 2022 Shaun Reed, all rights reserved                ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved                ##
 ## About: Practice project for using signals and slots in Qt                  ##
 ##                                                                            ##
 ## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com | GitHub: shaunrd0   ##
@@ -14,6 +14,7 @@ project(
     DESCRIPTION     "Practice using signals and slots in Qt 6"
     LANGUAGES       CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 add_compile_options(-Wall)
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
@@ -28,7 +29,16 @@ set(QT_DIR "$ENV{HOME}/Code/Clones/Qt/6.3.1/gcc_64/" CACHE PATH "Path to Qt6")
 
 list(APPEND CMAKE_PREFIX_PATH "${QT_DIR}")
 
-find_package(Qt6 REQUIRED COMPONENTS Core Gui Widgets)
+find_package(Qt6 COMPONENTS Core Gui Widgets)
+if (NOT Qt6_FOUND)
+  message(
+      FATAL_ERROR
+      "[Klips] Error: CMake was unable to find Qt6 libraries.\n"
+      "The example will not be built until the build is configured with these packages installed.\n"
+      "On Ubuntu 24.04 Qt6 can be installed using apt:\n"
+      "  sudo apt-get install qt6-base-dev qt6-tools-dev\n"
+  )
+endif()
 
 qt_add_executable(slots
     text-view.cpp text-view.h

cpp/qt/slots/text-view.h

@@ -22,7 +22,7 @@ public:
 
 public:
 signals:
-  void sendTest()QWidget;
+  void sendTest();
 
 private:
 signals:

esp/README.md

@@ -0,0 +1,8 @@
+# esp
+
+```bash
+shaunrd0/klips/esp/
+├── cpp     # Examples of ESP32 projects written in C++
+├── rust    # Examples of ESP32 projects written in Rust
+└── README.md
+```

esp/cpp/01_led-button/README.md

@@ -1,5 +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.

esp/cpp/02_led-button-web/README.md

@@ -1,5 +1,9 @@
 # 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/).

esp/cpp/03_temp-humidity-web/README.md

@@ -1,5 +1,9 @@
 # 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.

esp/cpp/04_esp-idf-arduino/.gitignore

@@ -1,4 +1,4 @@
 build
 managed_components
-
-
+dependencies.lock
+sdkconfig.old

esp/cpp/04_esp-idf-arduino/CMakeLists.txt

@@ -12,6 +12,7 @@ project(
     DESCRIPTION "Example ESP-IDF cmake project"
     LANGUAGES   CXX
 )
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
 
 # 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

esp/cpp/04_esp-idf-arduino/README.md

@@ -1,15 +1,24 @@
-# 03_temp-humidity-web
+# 04_esp-idf-arduino
 
-There is no schematic for this example, it simply prints some output to the serial monitor.
+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`.
@@ -30,18 +39,43 @@ ninja
 
 ## Dependencies
 
-The [Arduino IDE](https://github.com/arduino/arduino-ide) must be installed.
-
- install [ESP-IDF](https://github.com/espressif/esp-idf?tab=readme-ov-file#setup-build-environment)
+Install the [ESP-IDF](https://github.com/espressif/esp-idf?tab=readme-ov-file#setup-build-environment)
 
 ```bash
-git clone -b v5.3.2 git@github.com:espressif/esp-idf.git
+# 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
-
-# You only need to do this if you want to use ESP-IDF's idf.py helper script.
-# This example uses cmake, so it's not required.
 . ./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).

esp/cpp/04_esp-idf-arduino/dependencies.lock

@@ -1,431 +0,0 @@
-dependencies:
-  chmorgan/esp-libhelix-mp3:
-    component_hash: cbb76089dc2c5749f7b470e2e70aedc44c9da519e04eb9a67d4c7ec275229e53
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.1.0'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.0.3
-  espressif/arduino-esp32:
-    component_hash: f5fc427eaeb4b84d6b644e3fac1251240a38b8c5e08122f1810a59145f00ccb0
-    dependencies:
-    - name: chmorgan/esp-libhelix-mp3
-      registry_url: https://components.espressif.com
-      require: private
-      version: 1.0.3
-    - name: espressif/cbor
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target not in [esp32c2, esp32p4]
-      version: 0.6.0~1
-    - name: espressif/esp-dsp
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target != esp32c2
-      version: ^1.3.4
-    - name: espressif/esp-modbus
-      registry_url: https://components.espressif.com
-      require: private
-      version: ^1.0.15
-    - name: espressif/esp-sr
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target in [esp32s3]
-      version: ^1.4.2
-    - name: espressif/esp-zboss-lib
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target not in [esp32c2, esp32p4]
-      version: ==1.6.0
-    - name: espressif/esp-zigbee-lib
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target not in [esp32c2, esp32p4]
-      version: ==1.6.0
-    - name: espressif/esp_diag_data_store
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target not in [esp32c2, esp32p4]
-      version: 1.0.1
-    - name: espressif/esp_diagnostics
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target not in [esp32c2, esp32p4]
-      version: 1.0.2
-    - name: espressif/esp_hosted
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target == esp32p4
-      version: ^0.0.25
-    - name: espressif/esp_insights
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target not in [esp32c2, esp32p4]
-      version: 1.0.1
-    - name: espressif/esp_modem
-      registry_url: https://components.espressif.com
-      require: private
-      version: ^1.1.0
-    - name: espressif/esp_rainmaker
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target not in [esp32c2, esp32p4]
-      version: 1.5.0
-    - name: espressif/esp_wifi_remote
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target == esp32p4
-      version: ^0.4.1
-    - name: espressif/libsodium
-      registry_url: https://components.espressif.com
-      require: private
-      version: ^1.0.20~1
-    - name: espressif/mdns
-      registry_url: https://components.espressif.com
-      require: private
-      version: ^1.2.3
-    - name: espressif/network_provisioning
-      registry_url: https://components.espressif.com
-      require: private
-      version: 1.0.2
-    - name: espressif/qrcode
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target not in [esp32c2, esp32p4]
-      version: 0.1.0~2
-    - name: espressif/rmaker_common
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: target not in [esp32c2, esp32p4]
-      version: 1.4.6
-    - name: idf
-      require: private
-      version: '>=5.3,<5.4'
-    - name: joltwallet/littlefs
-      registry_url: https://components.espressif.com
-      require: private
-      version: ^1.10.2
-    source:
-      registry_url: https://components.espressif.com/
-      type: service
-    targets:
-    - esp32
-    - esp32s2
-    - esp32s3
-    - esp32c2
-    - esp32c3
-    - esp32c6
-    - esp32h2
-    - esp32p4
-    version: 3.1.1
-  espressif/cbor:
-    component_hash: 440f4ee4504841cc9b4f3a8ef755776a612ac9dace355514c68b999868f990ff
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.3'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 0.6.0~1
-  espressif/esp-dsp:
-    component_hash: fa7fe74305df6da25867437ebcd4213e047cbfc0556cf92067ab657fce537c6e
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.2'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.5.2
-  espressif/esp-modbus:
-    component_hash: e42ebfdfc9d8e46821a915b4c1a5c6465c44dbd4e1bca10531e26f4adc7acc42
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.3'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.0.17
-  espressif/esp-serial-flasher:
-    component_hash: dcc42a16712a1a636509cf0bf90e14032d7f2141784b533613b267b6aa318d52
-    dependencies: []
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 0.0.11
-  espressif/esp-zboss-lib:
-    component_hash: fad683f7e04366398b61c0eea6e6517d4fe7ec4112407e26743dc80bafc0dcdc
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=5.0'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.6.0
-  espressif/esp-zigbee-lib:
-    component_hash: 0026979f590d7f2b07f433bb0fd031a12b0c2cc0eec8584b59cb6e567d5afd82
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=5.0'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.6.0
-  espressif/esp_diag_data_store:
-    component_hash: 8849195251dbb8a2d7268335277cfa310cef36e4ac1e90cd59ad3be4269a30d7
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.1'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.0.1
-  espressif/esp_diagnostics:
-    component_hash: fe19f5ee7f0145f406d36a4d5310e4ae0c6ee1afa47f2681ada8a2ea8582d390
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.1'
-    - name: espressif/rmaker_common
-      registry_url: https://components.espressif.com
-      require: private
-      version: ~1.4.0
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.0.2
-  espressif/esp_insights:
-    component_hash: 2472a19de98a8b991baeeac7209765b70ce14ec2b1435dbed3abd020dd0f7227
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.1'
-    - name: espressif/cbor
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: idf_version >=5.0
-      version: ~0.6
-    - name: espressif/esp_diag_data_store
-      registry_url: https://components.espressif.com
-      require: private
-      version: ~1.0
-    - name: espressif/esp_diagnostics
-      registry_url: https://components.espressif.com
-      require: private
-      version: ~1.0
-    - name: espressif/rmaker_common
-      registry_url: https://components.espressif.com
-      require: private
-      version: ~1.4.0
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.0.1
-  espressif/esp_modem:
-    component_hash: 681d7c8417ce0f2a11a562c6998b7b379a4847be41d84673c11c0c7a6b00e918
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.1'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.3.0
-  espressif/esp_rainmaker:
-    component_hash: f89a4759347f3909417fb33059452f36c86befae9d10bda78b5417b7a5d19d11
-    dependencies:
-    - name: espressif/rmaker_common
-      registry_url: https://components.espressif.com
-      require: private
-      version: ~1.4.6
-    - name: espressif/network_provisioning
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: idf_version >= 5.1
-      version: ~1.0.0
-    - name: espressif/mdns
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: idf_version >=5.0
-      version: ^1.2.0
-    - name: espressif/json_parser
-      registry_url: https://components.espressif.com
-      require: private
-      version: ~1.0.3
-    - name: espressif/json_generator
-      registry_url: https://components.espressif.com
-      require: private
-      version: ~1.1.1
-    - name: espressif/esp_secure_cert_mgr
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: idf_version >=4.3
-      version: ^2.2.1
-    - name: espressif/esp_schedule
-      registry_url: https://components.espressif.com
-      require: private
-      version: ~1.2.0
-    - name: espressif/esp_rcp_update
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: idf_version >= 5.1
-      version: ~1.2.0
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.5.0
-  espressif/esp_rcp_update:
-    component_hash: c10afbd54a17f27eed880e61262b161656e6d36ad63376c307f9273e99d0abcd
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=5.0'
-    - name: espressif/esp-serial-flasher
-      registry_url: https://components.espressif.com
-      require: private
-      version: ~0.0.0
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.2.0
-  espressif/esp_schedule:
-    component_hash: e202a9c688f7f1ab601efb91d682e4bcfaebc508dcceee1a1e0a0d2d1ca75a26
-    dependencies:
-    - name: espressif/rmaker_common
-      registry_url: https://components.espressif.com
-      require: private
-      version: ~1.4.2
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.2.0
-  espressif/esp_secure_cert_mgr:
-    component_hash: 5d9175b416f751ba6a7cb35bdf092f0af85658ce06c4a592c7c541d8017ebeb9
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.3'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 2.5.0
-  espressif/jsmn:
-    component_hash: d80350c41bbaa827c98a25b6072df00884e72f54885996fab4a4f0aebce6b6c3
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.3'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.1.0
-  espressif/json_generator:
-    component_hash: 45033e1c199b13f1c8c1b544fb7d4e2df6a8e3071ebdcb1b22582b61a7974ff2
-    dependencies: []
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.1.2
-  espressif/json_parser:
-    component_hash: d74b81729ad06ec11ff5eb5b1b0d7df1d00e6027fc11471f4b139c70dcf1b1e4
-    dependencies:
-    - name: espressif/jsmn
-      registry_url: https://components.espressif.com
-      require: private
-      rules:
-      - if: idf_version >=5.0
-      version: ~1.1
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.0.3
-  espressif/libsodium:
-    component_hash: 25b968723c584a2742ca36cebe5a7ef049c6767e059f7b1e1eec69946019025d
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.2'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.0.20~2
-  espressif/mdns:
-    component_hash: 4e21149422be01c24d4b1d4dec64fa07d136d8c5d234e931f3ebf375cbde51a0
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=5.0'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.5.2
-  espressif/network_provisioning:
-    component_hash: ef2e10182fd1861e68b821491916327c25416ca7ae70e5a6e43313dbc71fe993
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=5.1'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.0.2
-  espressif/qrcode:
-    component_hash: 3b493771bc5d6ad30cbf87c25bf784aada8a08c941504355b55d6b75518ed7bc
-    dependencies: []
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 0.1.0~2
-  espressif/rmaker_common:
-    component_hash: a3a1df881278d0351fc850b77792fe8a196ddd6dcacbea203d606329cc6a0239
-    dependencies: []
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.4.6
-  idf:
-    source:
-      type: idf
-    version: 5.3.2
-  joltwallet/littlefs:
-    component_hash: add3caf39a265868f70e55f17e8bfb401f200e45a601dc392832e7ac2c1487bc
-    dependencies:
-    - name: idf
-      require: private
-      version: '>=4.3'
-    source:
-      registry_url: https://components.espressif.com
-      type: service
-    version: 1.16.4
-direct_dependencies:
-- espressif/arduino-esp32
-- idf
-manifest_hash: fe35c802ba6a89901a8000205c3dac0c8d85b17fbd036b7a7dcb213e5f6e5361
-target: esp32
-version: 2.0.0

esp/cpp/05_temp-humidity-web/.gitignore

@@ -0,0 +1,4 @@
+build
+managed_components
+dependencies.lock
+sdkconfig.old

esp/cpp/05_temp-humidity-web/CMakeLists.txt

@@ -0,0 +1,19 @@
+# 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
+)
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
+
+# 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)

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
+```

esp/cpp/05_temp-humidity-web/main/CMakeLists.txt

@@ -0,0 +1,4 @@
+idf_component_register(
+    SRCS "main.cpp"
+    INCLUDE_DIRS "."
+)

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

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()
+{
+
+}

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

esp/cpp/06_i2c-scanner/.gitignore

@@ -0,0 +1,4 @@
+build
+managed_components
+dependencies.lock
+sdkconfig.old

esp/cpp/06_i2c-scanner/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]]   i2c-scanner
+    VERSION     0.1
+    DESCRIPTION "Simple I2C device scanner"
+    LANGUAGES   CXX
+)
+message(STATUS "[Klips] Configuring example: ${PROJECT_NAME}")
+# 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)