Datasheet

The Analog/Digital GPIO Pins
Analog 0 - also known as Digital 14, this pin can be a digital I/O pin or an analog
input pin
Analog 1 - also known as Digital 15, this pin can be a digital I/O pin or an analog
input pin
Analog 2 - also known as Digital 16, this pin can be a digital I/O pin or an analog
input pin
Analog 3 - also known as Digital 17, this pin can be a digital I/O pin or an analog
input pin
Analog 4 - also known as Digital 18, this pin can be a digital I/O pin or an analog
input pin. It's also the I2C SDA pin
Analog 5 - also known as Digital 19, this pin can be a digital I/O pin or an analog
input pin. It's also the I2C SCL pin
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