@ -106,4 +106,9 @@ Signal--+------|PD0 |
GND------------|GND |
`------'
R: 1K Ohm resistor
```
## Arduino Micro with ATMega32U4
Note that Arduino Micro PCB marking is different from real AVR port name. D0 of Arduino Micro is not PD0, PD0 is D3. Check schematic yourself.
http://arduino.cc/en/uploads/Main/arduino-micro-schematic.pdf