Over the years we’ve seen a number of homebrew 6502 computers assembled with little more than a breadboard ... that allows an Arduino (or similar microcontroller) to connect up to the computer ...

The trick is using a breadboard ... an IO pin on an Arduino Due. A program runs through each point on the breadboard, running a continuity test to see if there’s a jumper connecting them.

Developers, electronics engineers, makers and hobbyists looking for an affordable integrated circuit tester may be interested in this automated Arduino IC tester ... Socket and LCD can be put ...