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    Graphic functions not working

    Arduino
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    • F
      flyceo
      last edited by

      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
        M5.begin();
      
        // LCD display
        M5.Lcd.print("Hello world!");
        
      }
      
      // the loop routine runs over and over again forever
      void loop() {
          M5.update();
      }
      

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

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

      or this:

      M5.Lcd.fillScreen(TFT_RED);
      

      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?

      Thanks,
      Roland

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      • felmueF
        felmue
        last edited by

        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?

        Thanks
        Felix

        GPIO translation table M5Stack / M5Core2
        Information about various M5Stack products.
        Code examples

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