The Mega shield

A project log for Simple TTL logic tester

Using an Arduino and Python script for testing simple logic I.C.s like 74xx TTL

fjkraanfjkraan 11/13/2020 at 08:510 Comments

The PCB for the Arduino Mega 2560 finally got populated and somewhat tested. The layout is not perfect and the result isn't quite fit for the promotion poster, but probably good enough for testing and usage. This project is just to make digital logic I.C.s testing easy, not to win beauty contests.

Some issues found with construction and testing:

The next stage is:

At one time I might upload an updated schema and PCB, but as long as the current design is fixable, I won't order and test it.

There are five pins were power can be applied, being the highest pin number for 14, 16, 20, 24 and 28 pin I.C.s. For different power pin schemes, the breadboard solution of the prototype could be used.