Pin Mappings
Board Maps
| Pin Function | Board Pin |
|---|---|
| Exposed Accessory I/O | P0~P31 |
| Test Point on Back | P32 |
| Test Point on Back | P33 |
| WS281X(b) LED Output | P34 |
| UART TX Output | P35 |
| UART RX Input | P36 |
| Voltmeter #1 Input | P37 |
| Voltmeter #2 Output | P38 |
| One-Wire Data Line | P39 |
| Error Buzzer | P40 |
| I2C SDA | P41 |
| I2C SCL | P42 |
| Expansion FFC I/O | P43~P63 |
| Robot Status Light | P56/LED1 |
| Programming TXD | P62 |
| Programming RXD | P63 |
Expansion header maps
From right (servo output) side:
| Pin | Signal | Pin | Signal |
|---|---|---|---|
| 1 | GND | 15 | P2_P55 |
| 2 | GND | 16 | P2_P56 |
| 3 | P2_P43 | 17 | P2_P57 |
| 4 | P2_P44 | 18 | P2_P58 |
| 5 | P2_P45 | 19 | P2_P59 |
| 6 | P2_P46 | 20 | P2_P60 |
| 7 | P2_P47 | 21 | P2_P61 |
| 8 | P2_P48 | 22 | P2_P62 (TXD/Prog) |
| 9 | P2_P49 | 23 | P2_P63 (RXD/Prog) |
| 10 | P2_P50 | 24 | P2_RESn (Reset) |
| 11 | P2_P51 | 25 | P2_V48 |
| 12 | P2_P52 | 26 | P2_V56 |
| 13 | P2_P53 | 27 | 5V |
| 14 | P2_P54 | 28 | 5V |
P2 Accessory header maps
These ports are compatible with all the Parallax P2-EVAL accessories.