Rotary Encoder with Push Switch

This rotary encoder knob can be rotated unlimited times. It has a flat sided shaft and has a built-in push button under the shaft. Specifications Flat top Push-button capability Pulses per rotation: 20 Unlimited Rotations Pins are right-angle to the knob, but you can connect them to a breadboard using male-female jumper wires Standard pin spacing: 2.54mm (0.1") Dimensions (excluding pins): 26.2mm (1.03") length x 18.5mm (0.73") width x 28.5mm (1.12") height Total Shaft Dimensions: 20mm (0.79") height x 6mm (0.24") diameter Turning Portion of Shaft Dimensions: 12.5mm (0.49") height x 6mm (0.24") diameter Resources Arduino.cc Playground page on Rotary Encoders