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This table details the function of each pin on the Digispark Pro and any notes the are relevant.
| Pin Number | Output Voltage | ADC | PWM | ||||
|---|---|---|---|---|---|---|---|
| VCC | VCC | 5v | |||||
| SDA | 0 SDA | 5v | Y | ||||
| LED | 1 LED | 5v | Y | ||||
| SCL | 2 SCL | 5v | Y | ||||
| USB+ | 3 USB+ | 5v | Y | ||||
| USB- | 4 USB- | 5v | Y | Y | |||
| Pin 5 | 5 | 5v | Y | Y | |||
| GND | GND | 0v | |||||
| VIN | VIN(6-16v) | ||||||
| Pin Number | Output Voltage | ADC | PWM | ||||
| RX | 6 RX | 5v | Y | ||||
| TX | 7 TX | 5v | Y | ||||
| MISO | 8 MISO | 5v | Y | Y | |||
| INT1 | 9 INT1 | 5v | Y | ||||
| MOSI | 10 MOSI | 5v | Y | ||||
| SCK | 11 SCK | 5v | Y | ||||
| SS | 12 SS | 5v | Y | ||||
| RST | RST | ||||||
| Pin Number | Output Voltage | ADC | PWM | ||||
| VIN | VIN(6-16v) | ||||||
| GND | GND | 0v | |||||
| VCC | VCC | 5v |