MEP EP#232: Chonky Motherboards

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
  • 39x9 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!