This is a wiring diagram that [Soranne] put together when developing a method of programming PIC microcontrollers using an Arduino board ... a way to write to the EEPROM as of yet.

[TheMagicSmoke] has produced just what we’d have needed then for one component that’s ubiquitous, the I 2 C EEPROM ... s a straightforward add-on for an Arduino Mega, so we’re shown the ...