Fix dependencies for each component.

Add ability to clear LCD screen, and write at a label position.

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)
+
+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

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

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

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

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)
+find_package(GLUT QUIET)
+if(NOT GLUT_FOUND)
+  message(
+      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})
-else()
-  message(
-      "Error: CMake was unable to find the GLUT package\n"
-      "Please install GLUT (freeglut3-dev) and try again\n"
-  )
-endif()
 
 # 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(
@@ -27,10 +28,16 @@ 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})
@@ -48,10 +55,3 @@ if (SDL2_FOUND)
     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/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/05_temp-humidity-web/CMakeLists.txt

@@ -12,6 +12,7 @@ project(
     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

esp/cpp/06_i2c-scanner/CMakeLists.txt

@@ -12,6 +12,7 @@ project(
     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)

esp/cpp/06_i2c-scanner/main/idf_component.yml

@@ -2,7 +2,7 @@
 dependencies:
   ## Required IDF version
   idf:
-    version: '>=5.3.0'
+    version: '>=5.5.1'
   # # Put list of dependencies here
   # # For components maintained by Espressif:
   # component: "~1.0.0"
@@ -14,4 +14,4 @@ dependencies:
   #   # `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
+  espressif/arduino-esp32: ^3.3.2

esp/cpp/07_lcd-panel-i2c/CMakeLists.txt

@@ -12,6 +12,7 @@ project(
     DESCRIPTION "Using the SSD1306 LCD display with ESP-IDF and LVGL over I2C"
     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/07_lcd-panel-i2c/main/idf_component.yml

@@ -1,6 +1,5 @@
 ## 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"

esp/cpp/07_lcd-panel-i2c/main/main.cpp

@@ -15,7 +15,7 @@
 
 I2C i2c(PIN_SDA, PIN_SCL, PIN_RST);
 
-void setup()
+extern "C" void app_main(void)
 {
   SSD1306 ssd1306(i2c);
   Display d(ssd1306);
@@ -37,5 +37,3 @@ void setup()
              LV_LABEL_LONG_CLIP,
              LV_ALIGN_BOTTOM_MID);
 }
-
-void loop() { }

esp/cpp/07_lcd-panel-i2c/main/panel.h

@@ -29,8 +29,8 @@ struct Panel {
       esp_panel_(nullptr),
       esp_panel_config_(
           (esp_lcd_panel_dev_config_t) {
-              .reset_gpio_num = device_->rst_num_,
               .bits_per_pixel = 1,
+              .reset_gpio_num = static_cast<gpio_num_t>(device_->rst_num_),
               .vendor_config = device_->vendor_config(),
           }
       )

esp/cpp/07_lcd-panel-i2c/main/panel_device.cpp

@@ -103,7 +103,7 @@ void IPanelDevice::register_rendering_data(lv_display_t *display_handle,
   assert(lv_buf_);
 
   ESP_LOGI(TAG, "Set LVGL draw buffers");
-  // Color format must be set first, LVGL9 suooprt new monochromatic format.
+  // Color format must be set first, LVGL9 support 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_,

esp/cpp/07_lcd-panel-i2c/main/panel_device.h

@@ -44,21 +44,24 @@ struct Pixel {
    *
    * 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].
+   * The example uses a horizontal resolution of 128.
    *
-   * 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
+   * 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
+   * 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.
+   * @param hor_res horizontal resolution of the display.
    * @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)
+  horizontal_byte_offset(const int32_t &x, const int32_t &y,
+                         const int32_t &hor_res = LCD_V_RES)
   {
     // Convert pixel (bit) coordinates to byte coordinates in the draw buffer.
     return (hor_res >> 3) * y + (x >> 3);
@@ -75,22 +78,25 @@ struct Pixel {
    *
    * 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].
+   * The example uses a horizontal resolution of 128.
    *
-   * 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
+   * 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
+   * 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.
+   * @param hor_res horizontal resolution of the display.
    * @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)
+  vertical_byte_offset(const int32_t &x, const int32_t &y,
+                       const int32_t &hor_res = LCD_V_RES)
   {
     // Convert pixel (bit) coordinates to byte coordinates in the draw buffer.
     return hor_res * (y >> 3) + x;
@@ -167,7 +173,8 @@ public:
       height_(height),
       rst_num_(i2c.rst_num_),
       lv_buf_size_(draw_buf_size),
-      esp_io_config_(io_config) { }
+      esp_io_config_(io_config),
+      lv_buf_(nullptr) { }
 
   virtual ~IPanelDevice() = default;
 
@@ -231,24 +238,6 @@ public:
    */
   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.
    *
@@ -269,6 +258,24 @@ public:
    */
   virtual void register_lvgl_tick_timer();
 
+  //
+  // 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_;
+
 protected:
   /**
    * Static accessor to a static buffer to store draw buffer data for the panel.

esp/cpp/07_lcd-panel-i2c/main/ssd1306.h

@@ -54,14 +54,14 @@ public:
       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,
+                       .scl_speed_hz = LCD_PIXEL_CLOCK_HZ,
                        .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,
+                       // User data to pass to the LVGL flush_ready callback.
+                       // See IPanelDevice::lvgl_flush_ready_cb
+                       .user_ctx = nullptr,
                    },
                    width,
                    height

esp/cpp/08_dht11-lcd/.gitignore

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

esp/cpp/08_dht11-lcd/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]]   DHT11
+    VERSION     0.1
+    DESCRIPTION "Using the DHT11 sensor with ESP-IDF over I2C"
+    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/08_dht11-lcd/README.md

@@ -0,0 +1,27 @@
+# 08_dht11-lcd
+
+Using the ESP IDF for reading data from a DHT11 sensor and displaying it on an LCD.
+
+[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
+```

esp/cpp/08_dht11-lcd/main/CMakeLists.txt

@@ -0,0 +1,6 @@
+idf_component_register(
+    SRCS
+    main.cpp
+    main.h
+    INCLUDE_DIRS .
+)

esp/cpp/08_dht11-lcd/main/idf_component.yml

@@ -0,0 +1,7 @@
+## IDF Component Manager Manifest File
+dependencies:
+  idf: '>=5.3.0'
+  lcd:
+    path: ../../components/lcd
+  ssd1306:
+    path: ../../components/ssd1306

esp/cpp/08_dht11-lcd/main/main.cpp

@@ -0,0 +1,35 @@
+/*#############################################################################
+## Author: Shaun Reed                                                        ##
+## Legal: All Content (c) 2025 Shaun Reed, all rights reserved               ##
+##                                                                           ##
+## Contact: shaunrd0@gmail.com  | URL: www.shaunreed.com                     ##
+##############################################################################
+*/
+
+#include "main.h"
+#include "i2c.h"
+#include "lcd.h"
+#include "ssd1306.h"
+
+extern "C" void app_main(void)
+{
+    I2C_init(PIN_SDA, PIN_SCL);
+
+    IPanelDevice lcd = SSD1306_new();
+    LCD d = LCD_init(&lcd);
+
+    LCD_set_text_with_mode(&d, "Test test 12345678910", LV_LABEL_LONG_SCROLL,
+                           LV_ALIGN_CENTER);
+
+    LCD_set_text(&d, "Hello hello hello hello hello hello hello hello!");
+
+    LCD_set_text_with_mode(&d, "A random sentence with no meaning at all.",
+                           LV_LABEL_LONG_CLIP, LV_ALIGN_BOTTOM_MID);
+
+    sleep(1);
+    LCD_clear(&d);
+    LCD_set_text(&d, "Test clearing the screen");
+    LCD_set_text_with_mode(&d, "Test writing something and overwriting it",
+                 LV_LABEL_LONG_SCROLL, LV_ALIGN_CENTER);
+    LCD_set_text_at(&d, "Overwrite.", 1);
+}