Potentiometers and rotary encoders together with balls.
Knob in the form of an encoder with a button that allows you to create a simple user interface. The module has three signals: A and B are the output of the encoder, and C is the output of the signal of the button. The encoder is equipped with the XH2,54 board.
Module with potentiometer with built-in LED RGB which changes the colour during the rotation of the knob. One turn increases the whole number by 24 and by -24 in case of rotating in the counterclockwise direction. The module communicates via I2C interface, it has a built-in Qwiic connector to facilitate the connection.