Making an Arduino shield can be simpler than you think. This time I designed one to program Attiny and Atmega ...

avrchap writes to the Flash program memory of an Atmal ATmega microcontroller from a Raspberry Pi. In can be used to write a bootloader to an ATmega (e.g. the optiboot bootloader used by Arduino).

The SPIFFS filesystem is used to store files in the flash chip. This library provides a virtual file system (VFS) implementation of SPIFFS to Arduino ESP32. In a nutshell it can acts like a SDcard but ...