IR Obstacle Avoidance Sensor Module



Detection distance: 2 ~ 30cm

  • Detection angle: 35 °
  • Voltage: DC 3-5V
  • Comparator: LM393
  • Board size: 3.2CM * 1.4CM
  • Screw holes distance: 3mm

Introduction.  Obstacle Sensor Module has builtin IR transmitter and IR receiver that sends out IR energy and looks for reflected IR energy to detect presence of any obstacle in front of the sensor module. The module has on board potentiometer that lets user adjust detection range.

How does IR sensor module work?

An infrared sensor emits and/or detects infrared radiation to sense its surroundings. … The basic concept of an Infrared Sensor which is used as Obstacle detector is to transmit an infrared signal, this infrared signal bounces from the surface of an object and the signal is received at the infrared receiver.
What is the maximum range of IR sensor?
An infrared sensor (IR sensor) is a radiation-sensitive optoelectronic component with a spectral sensitivity in the infrared wavelength range 780 nm … 50 µm. IR sensors are now widely used in motion detectors, which are used in building services to switch on lamps or in alarm systems to detect unwelcome guests.


  • VCC :3.3V-5V voltage (can be connected directly to the 5v and 3.3v MCU MCU)
  • GND – GND
  • OUT small board digital output interface (0 and 1)

Package including :

  •  1 X IR Obstacle Sensor for Arduino Smart Car Robot

IR Receiver Module(Opens in a new browser tab)


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