Rotary Angle Sensor
sensoricon
port: Grove: A1 (C16, C17)
interface: analog
output values

1 - 1019

Further information: https://wiki.seeedstudio.com/Grove-Rotary_Angle_Sensor/

A rotatable input knob (potentiometer) that can be turned up to 300° and produces a linear analog output between 0 and the operating voltage (3.3 V). This is distributed by the analog-digital converter of the Calliope mini in the value range between 0 and 1023.

You can find sensor and actuator projects that have already been realised on the project page.