| analog_shield.py | The Analog Shield library: import analog_shield as shield, on top of phyduino.py |
| LEDs | The green (D1) and red (D2) LEDs on D6 and D5 |
| Rotary encoder | The rotary encoder (ENC1) on D3 and D4, and its push switch on D2 |
| Temperature and amplifier | The LMT84 temperature sensor (U1) and the TLV2472 amplifier (U2) |
| Potentiometer | The potentiometer (RV1) on A5 |