The coded rotary switch (rotary encoder) outputs the direction of movement and the current position of the switch via its outputs when it is rotated.

The state of the two outputs changes with each step, allowing the direction of rotation to be determined. The direction of rotation is determined by the sequence of the state changes of the outputs: Depending on which output changes state first, it is possible to detect whether the switch is turned clockwise or counterclockwise.

This rotary switch is ideal for applications where precise position and movement information is required, such as in user interfaces for electronic devices, machine controls or in rotary measuring systems.