1 | D13 | Digital | GPIO |
2 | +3V3 | Power Out | Internally generated power output to external devices |
3 | AREF | Analog | Analog Reference; can be used as GPIO |
4 | A0/DAC0 | Analog | ADC in/DAC out; can be used as GPIO |
5 | A1 | Analog | ADC in; can be used as GPIO |
6 | A2 | Analog | ADC in; can be used as GPIO |
7 | A3 | Analog | (Details not explicitly provided; typically ADC in and usable as GPIO) |
8 | A4/SDA | Analog | ADC in; I2C SDA; can be used as GPIO |
9 | A5/SCL | Analog | ADC in; I2C SCL; can be used as GPIO |
10 | A6 | Analog | ADC in; can be used as GPIO |
11 | A7 | Analog | ADC in; can be used as GPIO |
12 | VUSB | Power In/Out | Normally NC; can be connected to the VUSB pin of the USB connector by shorting a jumper |
13 | RST | Digital In | Active low reset input (duplicate of pin 18) |
14 | GND | Power | Power Ground |
15 | VIN | Power In | Vin power input |
16 | TX | Digital | TX serial communication (further details not clearly defined in the excerpt) |
29 | D11/MOSI | Digital | SPI MOSI; can be used as GPIO |
30 | D12/MISO | Digital | SPI MISO; can be used as GPIO |