teensy st7735 linux stubs

experimental library for developing visual components for st7735 display...

• structure
• examples
• installation
• dependencies

structure

• src: abstract st7735_t3 class for linux.
• extras/opengl: implementation of st7735_t3 using opengl framebuffer

examples

• extras/opengl/examples/basic

  • modified version of ST7735_t3/examples/graphicstest/graphicstest.ino

    

• extras/opengl/examples/scrolltest

  • modified version of ST7735_t3/examples/scrollTest/scrollTest.ino

    

• extras/opengl/examples/spitftbitmap

  • modified version of ST7735_t3/examples/spitftbitmap/spitftbitmap.ino

    

installation

st7735_t3 class

> mkdir cmake-build-debug && cd cmake-build-debug && cmake -DCMAKE_BUILD_TYPE=Debug && sudo make install

opengl st7735 emulator

> cd extras/opengl && mkdir cmake-build-debug && cd cmake-build-debug && cmake -DCMAKE_BUILD_TYPE=Debug && sudo make install

usage

st7735_t3

• once installed, add to your CMakeLists.txt

find_package(teensy_st7735_linux_stubs)
include_directories(${teensy_st7735_linux_stubs_INCLUDE_DIR})
...
target_link_libraries(your_application ${teensy_st7735_linux_stubs_LIBS})

• include ST7735.h in your c++ code:

#include "ST7735_t3.h"

opengl st7735_t3

• once installed, add to your CMakeLists.txt

find_package(teensy_st7735_linux_opengl)
include_directories(${teensy_st7735_linux_extras_opengl_INCLUDE_DIR})
...
target_link_libraries(your_application ${teensy_st7735_linux_extras_opengl_LIBS})

• include st7735_opengl.h in your c++ code:

#include "Arduino.h"          // from teensy-x86-stubs
#include "st7735_opengl.h"

st7735_opengl_noinput tft = st7735_opengl_noinput();

void testlines(uint16_t color) {
    tft.fillScreen(ST7735_BLACK);
    for (int16_t x=0; x < tft.width(); x+=6) {
        tft.drawLine(0, 0, x, tft.height()-1, color);
        delay(200);
    }
}

int main() {
    initialize_mock_arduino();
    testlines(ST7735_RED);
    
    // keep window open until user closes 
    while(!tft.shouldClose()) {
        tft.loop();
    }
}

dependencies

src

• teensy-x86-stubs

extras/opengl

• teensy-x86-stubs
• teensy-st7735-linux-stubs/src (i.e. src)
• Ubuntu specific:
  • libglfw3, libglfw3-dev, libglu1-mesa-dev, freeglut3-dev, mesa-common-dev, libx11-dev, libxmu-dev, libxi-dev, libgl-dev, libglew-dev,

> sudo apt-get install -yq libglfw3 libglfw3-dev libglu1-mesa-dev freeglut3-dev mesa-common-dev libx11-dev libxmu-dev libxi-dev libgl-dev libglew-dev

• MacOS specific
  • glfw, glew

> brew install glfw
> brew install glew