@electronicsguy reports that the this code works with Waveshare ESP32-S3-AMOLED-1.91 without change. Arduino infrastructure is not well suited for my use case, and I wanted to be able to build my ...

FRAM, F-RAM or FeRAM (Ferroelectric Random Access Memory) is nonvolatile RAM memory that combines the advantages of both RAM and nonvolatile memory like Flash and EEPROM. It is very suitable for ...