Infrared Proximity Sensor

WaveshareSKU: WAV-12224
Sale price £3.90
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This is an Infrared Proximity Sensor - great for adding obstacle avoidance functionality to your Arduino robot project!

The sensor emits a beam of light and receives the reflected beam back, which is then used to calculate distance from a nearby object. The sensitivity can be adjusted using the onboard potentiometer.

A 4-pin XH2.54 wire is included, which has female jumper ends for connecting to your microcontroller.


  • Emitting a beam of infrared, and receive the reflected beam
  • Features wide-range voltage comparator LM393
  • Adjustable sensitivity
  • Signal output indicator

Package Contents

  • 1x Infrared Proximity Sensor
  • 1x XH2.54 4-pin wire


  • Power: 3.3V ~ 5V
  • Dimension: 39mm × 15.5mm (including the IR LED)
  • Mounting holes size: 3mm (M3)
  • Detection range: 2cm ~ 30cm (depending on the obstacle's colour, farthest for white)
  • Detection angle: 35°
  • Recommended environment: indoor, to avoid the impact of sunshine
  • Dimensions: 30mm x 15.50mm


How To Use

In the case of working with an MCU:

  • VCC ↔ 3.3V ~ 5V
  • GND ↔ GND
  • AOUT ↔ MCU.IO (analogue output)
  • DOUT ↔ MCU.IO (digital output)

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