I’m using a Davis anemometer to measure wind direction and speed. Direction is a wind vane attached to a 20k pot. I’ve plugged that into A0, and I’ve also attached power to 3.3v (3V3 pin) and ground (GND pin) appropriately. See this description of the device.
I think I should get 12 bits of resolution with the 20k pot giving values of approx 0-4096. However I only get 8-bit resolution values of 0-255.
EDIT: is it that the device is expecting to scale over 5v?