MEP EP#232: Chonky Motherboards

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!