Hi Im learning to work with "blue pill" (STM32F103C8T6) on PlatformIO and have a problem. Its a simple test sketch for showing Adafruit logo on the 128x64 I2C oled and it compiles, uploads ok but showing only noise on the display.
The same code, library and hardware works great when uploaded over Arduino IDE (STM32duino).
I tried what you proposed and now it behaves the same in Arduino IDE, NOT working.
It compiles, uploads and noise on the display…so, what is the conclusion?
The SSD1306 library should definitely work with the regular STM32 core. What’s the exact code?
Also, when you compile with the maple core and have File → Preferences → Verbose Compilation / Build turned on and build again, what does that build output say about the used SSD1306 library version?
I already answered about library versions, its not the code you could use library example... Now , Arduino IDE its not working either, and it was about PlatformIO issue in the begining, is there a point on this investigation?
What should I do with Arduino IDE now, go back to previous core?