Find all your DIY electronics in the MakerShed. 3D Printing, Kits, Arduino, Raspberry Pi, Books & more!

Hans writes – “This project decodes the port 80 diagnostic port common to nearly all PCs and displays the last component tested, in English, should the computer hang on power up self test (POST); Using a Basic Stamp I”Link.

Phillip Torrone

Editor at large – Make magazine. Creative director – Adafruit Industries, contributing editor – Popular Science. Previously: Founded – Hack-a-Day, how-to editor – Engadget, Director of product development – Fallon Worldwide, Technology Director – Braincraft.



  1. Emrikol says:

    ISA boards only? Am I correct?

  2. Oracle1729 says:

    Yes you’re correct, ISA boards only.

    I built one of these 15 years ago. It’s totaly useless in any computer less than 5 years old because computers don’t have ISA slots anymore.

  3. Oracle1729 says:

    If you need confirmation that it’s obsolete, the article has a 2000 copyright and uses a BS1 that’s been off the market for years.