I have some projects that use the a SSD1306 oled display driven via i2c. These all used to work. One of these projects is a simple port of the Adafruit SSD1306 test program I will use this as an example. Here is the platformio.ini for that project. [env] build_flags = -std=gnu++17 lib_deps = adafr…

wearyhacker April 9, 2024, 8:01am 12

Finally found the problem. A rogue cached copy of the file WireIMXRT.cpp was being used.

Teensy 4.1: Wire for I2C causes crash after boot, only in PlatformIO

Problem with i2c on latest version of platformio on teensy4.1