KY-040 Rotary Encoder Module


24 in stock

SKU: KY-040 Rotary Encoder Module Category: Tags: , , , , , ,


20 count rotary encoder can be counted in the positive direction and the reverse direction during rotation of the output pulse frequency.

Please note that these are thread less so can not be panel mounted.

Unlike rotary potentiometer count, the rotation counts are not limited.

With the button on the rotary encoder can be reset to its initial state, that starts counting from 0.


CLK – Encoder A output
DT  – Encoder B output
GND – Ground / 0V
SW  – ‘Select’ switch (activated when shaft pressed on top)


  • Rotary encoder module KY-040
  • Left and Right turn detection
  • Push button
  • Operating voltage – 5V
  • Circle pulse count – 20
  • 6mm Shaft
  • Size – 26mm x 19mm x 32mm

Additional information