| Broadcom Pin | Function | P1 Pin | P1 Pin | Function | Broadcom Pin | |
|---|---|---|---|---|---|---|
| 3.3V | 1 | 2 | 5V | |||
| 2 | SDA | 3 | 4 | 5V | ||
| 3 | SCL | 5 | 6 | GND | ||
| 4 | 7 | 8 | TX | 14 | ||
| GND | 9 | 10 | RX | 15 | ||
| 17 | 11 | 12 | PWM | 18 | ||
| 27 | 13 | 14 | GND | |||
| 22 | 15 | 16 | 23 | |||
| 3.3V | 17 | 18 | 24 | |||
| 10 | MOSI | 19 | 20 | GND | ||
| 9 | MISO | 21 | 22 | 25 | ||
| 11 | SCLK | 23 | 24 | CE0 | 8 | |
| GND | 25 | 26 | CE1 | 7 |
| Legend: | 5V | 3.3V | GND | I2C | UART | SPI | PWM |
|---|