KY-040 Rotary Encoder Module with Push Button

Add a turn-and-press control to your electronics project with the KY-040 rotary encoder module. Turning the shaft provides directional input, while pressing it gives you a separate button action. It is a handy way to navigate menus or adjust a setting without a touchscreen.

Project ideas

• Menu selection and value adjustment for microcontroller projects.
• DIY control panels, interface prototypes and robotics controls.
• Rotary input with an integrated push-button action.

Before connecting

This listing is for the KY-040 module. A microcontroller and other project components are not confirmed as included. Check the pin labels on your board and use suitable wiring and software debouncing for reliable readings.