IR Infrared Obstacle Avoidance Sensor Module For Arduino DIY Smart Car Robot 3-wire Reflective Photoelectric New

this IR sensor can detect obstacles in front of it.  When an object is detected the green indicator light on the board will light up. There is a low-level output signal on the OUT port.
It has a detection range of 2-30 cm at an angle up to 35 degrees.
The detection distance can be changed by using the potentiometer. To increase rotate the dial clockwise.
Connect the OUT pin on the sensor module directly to you IO port.

Connection: VCC-VCC; GND-GND; OUT-IO
Power: 3-5V
Size: 3.1CM * 1.5CM

    1 x Infrared obstacle avoidance module