AT89C51-8051-8031 SBC
Inspired by Inspired by Francesco’s design, an old Elektor (Dutch elektronics magazine) and a design I made myself in the past a new Eurocard format design, with buffered outputs , RAM , EEPROM so that it can also fit the 8051 and 8031’s (ROMless). For Francesco’s design see his Facebook group : https://www.facebook.com/groups/1163412597168632/