RLECS 3 Pack Rotary Encoder Module with Knob Cap KY 040 Brick Sensor Development Board Module for Arduino

Specification: Type: KY-040 Rotary Decoder Encoder. Operating Voltage: 5V. One round number of pulse: 20. Material of Knob Cap: Aluminium Alloy. Width: 19mm/0.75" Length: 26mm (31mm including pins)/ 1.02"(1.22"). Height: 30mm/1.18" Knob Cap Diameter: 15mm/ 0.59" Knob Cap Height: 16.5mm/ 0.65" Pin description: CLK - equivalent to output A in regular encoder. DT - equivalent to output B in regular encoder. GND - equivalent to output C in regular encoder. SW - reset switch. + (VCC) - positive supply to the unit. This device combines absolute encoder with integrated reset switch and pull-up resistors. Compact and simple to use. Unlike counter rotating potentiometers the rotation count is not discrete. Using the buttons on the rotary encoder it can be reset to its initial state to start counting from 0. Package included: 3pcs Rotary Encoder Module