MCU

ATMEGA168-20AU

ISP Header on UI board

  • 1 pin 16 MISO - Bridge J4!
  • 2 pin 6 VCC
  • 3 pin 17 SCK
  • 4 pin 15 MOSI
  • 5 pin 29 RESET
  • 6 pin 3,5,21 GND

avrdude -c arduino_as_isp -p m168 -U mem:op:file[:fmt] avrdude -c atmelice_isp -p m168 -U flash:r:flash.bin:r

SPI

MOSI

12 bytes

Foot Leds (IC21) => Leds Col (+bottom) 1 (IC4) => 2 (IC2) => 3 (IC1) => 4 (IC5) => 5 (IC3) => 6 (IC7) => 7 (IC6) => 7seg 1xx (IC11) => 7seg 1x (IC10) => 7seg (IC9) => Leds Top Right (IC8)

MISO

1 byte Rotary Encoders (IC24)

3 bytes Foot Switches (IC27) => Switches Top row (IC26) => Switches Bottom row (IC25)