Automated Dice Tester, DOOM SAO, DS18B20, electronics podcast, GE Light Bulbs, Josh Rozier, Kraig Brewing controller, MacroAmp, MacroFab, MacroFab Design Contest, macrofab engineering podcast, NASA, Raspberry Pi 4, Research Platform FLIP, Transformer

MEP EP#178: Little Shop of Transformer Horror

Podcast Notes

Check out our new MacroFab Design Contest: Useless Machine Sponsored by Mouser Electronics!

First “Entry” by Gerben! This must be made.

Josh Rozier

  • Transformer Shop Story
  • What is different between a power transformer and an output transformer?


    • EEPROM interface working for single read and write bytes
    • Functionality of the base firmware for the Screen functionality
      • Shows the normal Face.
      • GPIO 1 on the SAO connector toggles where the Face looks
      • EEPROM address locations for “damage” and “anger”
    • Github still needs to be cleaned up before public


  • MacroAmp
    • Enclosure and other parts arrive tomorrow
    • Thank you to Mouser Electronics for sponsoring this project!
  • Kraig Brewing Controller
    • Creating a new controller for controlling my beer fridge
    • 6 temperature probes
    • Wifi Connectivity
      • Silicon Labs solution
      • External Antenna
    • Processor
      • Silicon Labs
    • Screen and a few buttons
    • Takachi Enclosure


Visit our Public Slack Channel and join the conversation in between episodes!

MacroAmp PCB Render.

Stephen’s MacroAmp PCB render. This project is sponsored by Mouser Electronics!

Special thanks to whixr over at Tymkrs for the intro and outro!