Particle Board Pinouts
Particle Photon
| Pin | Name | Function | Type |
|---|
| D0 | SDA | I2C Data / GPIO | I2C/GPIO |
| D1 | SCL | I2C Clock / GPIO | I2C/GPIO |
| D2 | GPIO | SPI1 MOSI / GPIO | SPI/GPIO |
| D3 | GPIO | SPI1 MISO / GPIO | SPI/GPIO |
| D4 | GPIO | SPI1 SCK / GPIO | SPI/GPIO |
| D5 | GPIO | SPI1 SS / GPIO | SPI/GPIO |
| D6 | GPIO | Digital I/O | GPIO |
| D7 | LED | Built-in LED / GPIO | GPIO |
| A0 | ADC/DAC | Analog In / DAC Out | Analog |
| A1 | ADC | Analog Input (12-bit) | Analog |
| A2 | ADC/SS | Analog / SPI SS | Analog/SPI |
| A3 | ADC/SCK | Analog / SPI SCK | Analog/SPI |
| A4 | ADC/MISO | Analog / SPI MISO | Analog/SPI |
| A5 | ADC/MOSI | Analog / SPI MOSI | Analog/SPI |
| RX | Serial1 RX | UART Receive | UART |
| TX | Serial1 TX | UART Transmit | UART |
| WKP | WKP/A7 | Wake / Analog | Analog/GPIO |
| VIN | VIN | 3.6-5.5V Input | Power |
| 3V3 | 3V3 | 3.3V Output (100mA) | Power |
| GND | GND | Ground | Ground |
| RST | RST | Reset (active low) | Control |
Particle Electron (Cellular)
| Pin | Name | Function | Type |
|---|
| D0-D7 | Digital | Same as Photon | GPIO |
| A0-A5 | Analog | Analog Input (12-bit) | Analog |
| B0-B5 | Digital | Additional GPIO | GPIO |
| C0-C5 | Digital | Additional GPIO | GPIO |
| RX/TX | Serial | UART | UART |
| VBAT | VBAT | LiPo Battery (3.7V) | Power |
| VIN | VIN | 5V USB Input | Power |
| 3V3 | 3V3 | 3.3V Regulated | Power |