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Keyestudio RJ11 EASY plug Infrared Obstacle Avoidance Sensor Module for Arduino Starter STEAM

obstacle sensor
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Infrared obstacle avoidance sensor is equipped with distance adjustment function and is especially designed for wheeled robots.
This sensor has strong adaptability to ambient light and is of high precision. It has a pair of infrared transmitting and receiving tube.
When infrared ray launched by the transmitting tube encounters an obstacle (its reflector), the infrared ray is reflected to the receiving tube, after a comparator circuit processing, the indicator will light up.
You can adjust the detection distance by rotating the potentiometer knob, the effective distance range of 2~40cm.
They can be widely used in robot obstacle avoidance, avoidance car, line count, and black and white line tracking and many other occasions.
This module should be used together with EASY plug control board.


  • Working voltage: DC 3.3V-5V

  • Working current: ≥20mA

  • Working temperature: -10℃ to+50℃

  • Detection distance: 2~40cm

  • Output signal: TTL voltage

  • Effective Angle: 35°

  • Dimensions: 52mm*17mm*18mm

  • Weight: 6.2g

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