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If you have a sketch which can write its updated version into EEPROM of ATmega328p and then boootload from the EEPROM, then you can use the flash for the same purpose. The ATmega328p has 32kB of flash and only 1kB EEPROM. For my ArduinoOTA library I developed a way to store the uploaded binary in upper half of the flash and then let the bootloader copy the ...

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