AVR Port Information

Port B

0: Solenoid

1: Speaker (OC1)

2: Eye Power

3: J1 (MOSI)

4: J1 (MISO)

5: J1 (SCK)

Port C

0: Eye Input (ADC0)

1: Unknown

2: SW3 (dwell down)

3: SW4 (trigger)

4: SW1 (power/eye mode)

5: SW2 (dwell up)

Port D

0: not used

1: not used

2: Board Power

3: Low Battery

4: D3 (LED)

5: D4 (LED, not installed)

6: not used

7: not used