A rotary encoder with 20 steps per revolution. Rotary encoders are widely used in volume controls.
This rotary encoder can rotate and does not have, like almost all potentiometers, a start, and an end position.
However, rotary encoders must be read digitally. Based on this, you can determine the direction in which the rotary encoder moves and how many steps have been taken.
This rotary encoder also has a push-button built-in for example to select something. (between pin D and E)
The rotary encoder can be read out by means of pin A, B, and C.
A standard potentiometer knob can be attached to the rotary encoder.
See the images for the sizes and the explanation of the pins.
