Hi,
I am using this circuit and software to write to the NVRAM: GitHub - crmaykish/AT28C-EEPROM-Programmer-Arduino: Programming the AT28C64B or AT28C256 EEPROM chip with an Arduino Mega
In order to avoid the hassle of disabling Software Data Protection for writes to the 28c256 EEPROM, I...
This isn't really a Runge Meister. I'm just trying not to infringe on any copy rights and still leave this searchable. The original is on the left, complete with germanium transistor (unobtainable) and misprint in the 47uf cap size. I read several articles about how this works ad this is my...