A rotary encoder and momentary push switch share one compact control, so turning can adjust a value and pressing can select it. This project covers both the original breakout and its revised connection layout.

The newer board adds hybrid castellated pads on a 2.54mm pitch. It can be soldered directly onto another PCB to avoid tall headers, while retaining the option of standard headers for prototyping. Both versions combine incremental rotation input with a push button.

Product: https://www.questwiseventures.com/products/mini-rotary-encoder-push-button-castellated-pins