an LCD (Liquid Crystal Display) setup using I2C with three different microcontroller boards: the NodeMCU, STM32F401RE, and the classic Arduino UNO! I am pleased to present what I have been working on ...

The interface is C-style pointer to struct passed to functions. To use this you just have to include the .h and .c in the same folder as your code (or for arduino_ex, in the same folder as your ...