A very and simple basic library for small uC. Uses only standard C features, can be used with PIC, ATMEL, AVR, RASPBERRY ecc.. The library comes with a SOFTWARE I2C small library if you haven't an hw peripheral free.
Note that this library is in production in a lot of environments (PLCs, custom boards, raspberrys), it is very stable, so should suit a industry-ready application.
Just edit the pin I/O function in the ssd1309_micro_universal_softi2c.h file to suit your application and you're done! Follow the TODOs
For questions or proposes email me at: marco.ortali@live.it
Marco Ortali 2022