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M274 360 degree Rotary Encoder Module

  • Model : KY-040.
  • Type : Incremental Encoder.
  • Cycles per revolution (CPR) : 20.
  • Working voltage : 0 – 5V.
  • Material : PCB + Brass.
  • Weight : 10 gm.

79.00 66.95+18% GST

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SKU 04AI002 Categories ,

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M274 360 degree Rotary Encoder Module

The M274 360 Degree Rotary Encoder Module Brick Sensor is a rotary input device (as in knob) that provides an indication of how much the knob has been rotated AND what direction it is rotating in. It’s a great device for stepper and servo motor control.  You could also use it to control devices like digital potentiometers.

M274 360 rotary Degree encoder, is an incremental electro-mechanical device that converts the angular position or motion of a shaft or axle to digital code. The output of incremental encoders provides information about the motion of the shaft, which is typically further processed in processor/controllers into information such as speed, distance, and position.


  • Incremental Encoder
  • Supply Voltage : 3-5V
  • Left/Right rotary output pulse, each circle with 20 pulse
  • Built in 10k resistor
  • Cycles per revolution (CPR) : 20


Rotary encoders are used in a wide range of applications that require monitoring or control, or both, of mechanical systems, including industrial controls, robotics, photographic lenses, computer input devices such as optomechanical mice and trackballs, controlled stress rheometers, and rotating radar platforms.


Click here to download datasheet of M274 Rotary Encoder.

Click here to learn how to interface M274 with Arduino.


Model KY-040
Encoder Type Incremental
Cycles Per Revolution (CPR) 20
Operating Voltage(VDC) 5
Length (mm) 32
Width (mm) 19
Height (mm) 30
Weight (gm) 10


Pin No. Pin Name Description
Pin 1 GND Power Ground or Power –Ve
Pin 2 +V Power +Ve (3VDC to 5VDC Max wrt. GND)
Pin 3 SW Push Switch Connection
Pin 4 DT Direction Pulse. Pin has 10K pullup connected to supply
Pin 5 CLK Clock Pulse.Pin has 10K pullup connected to supply


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