Mike Blandford adapted the optiboot bootloader for the 4-in-1 module to allow flashing of the module using a standard Arduino USB to serial adapter or FTDI adapter. No need to open the module case.
This project has been archived as of 2024-11-18 and replaced by its predecessor, PicoPROM. The new device is more affordable and capable of reading and writing to standard EEPROM devices (ie: AT28C256 ...
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