Graphic functions not working

  • Hi there,

    I am new to M5Stack but already programmed some stuff for esp8266 using platformio.

    I loaded all the necessary libs and board definitions and tried a short script:

    #include <M5Core2.h>
    void setup(){
      // Initialize the M5Stack object
      // LCD display
      M5.Lcd.print("Hello world!");
    // the loop routine runs over and over again forever
    void loop() {

    Everything worked as expected.
    But then I added some Code like this:

    M5.Lcd.fillRect(10, 10, 100, 100, TFT_YELLOW);

    or this:


    and suddenly the screen stay black. You can only see the backlight working. When I remove the fill... rod draw.... part, it works again. What am I doing wrong?


  • Hello @flyceo

    not sure what's going on on your side as your code runs and works fine here - using PlatformIO as well. I see the text and the yellow square just fine.

    What does your platform.ini look like?