i want to working lcd how to upload bmp file? this lcd use st7796 driver i dont know how to conect wire and use library
can i use with out library?

The specs for both ESP32 and ESP8266 talk about RTC memory for data retention between deep sleep instances. This is useful for counts, previous sensor values etc. I have found many useful articles on exploiting this with Arduino C code but I have found nothing to tell me how to do this with MicroPyt...

Thanks @FRDM!)