This is a DEV board the documentation is less than good :-/ very important the oled is defined like this: //OLED pins #define OLED_SDA 21 #define OLED_SCL 22 #define OLED_RST 16 #define SCREEN_WIDTH 128 // OLED display width, in pixels #define SCREEN_HEIGHT 64 // OLED display height, in pixels

This is a DEV board the documentation is less than good :-/ very important the oled is defined like this: //OLED pins #define OLED_SDA 21 #define OLED_SCL 22 #define OLED_RST 16 #define SCREEN_WIDTH 128 // OLED display width, in pixels #define SCREEN_HEIGHT 64 // OLED display height, in pixels

This is a DEV board the documentation is less than good :-/ very important the oled is defined like this: //OLED pins #define OLED_SDA 21 #define OLED_SCL 22 #define OLED_RST 16 #define SCREEN_WIDTH 128 // OLED display width, in pixels #define SCREEN_HEIGHT 64 // OLED display height, in pixels