Chonky Motherboards

July 8, 2020 Hosted by Parker Dillmann, Stephen Kraig

Parker discusses his latest project. An electronic device to ensure his pet cat does not become a chonker. A lawd its processing!

Parker

  • The Cat Feeder Unreminder
    • Different implementations to accomplish the goal

Stephen

  • Synth DSP replacement
    • Korg MS2000
    • Was pulling an additional 500mA on the power supply
    • Found a blown surface mount fuse
    • The DSP chip XCB56362PV100 was hot to touch
      • Replaced with part found on ebay
      • Wasn’t sure if this part needed programming
  • LED Matrix Driver – IS31FL3741
    • 39×9 LED matrix = 351 individual color leds or 117 RGBs
    • QFN-24 package
    • 256 levels of PWM control and 256 levels of DC current control
    • Layout vs code

R.F.O.

  • Brew Day Updates!

Hosts: Parker Dillmann, Stephen Kraig

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