HALJIA IR Infrared Obstacle Avoidance Sensor Module Reflective photoelectric for RC Smart Car Robot

It has a pair of infrared transmitting and receiving tube, tube infrared emit a certain frequency, when detecting direction meet with obstacles (reflecting surface), reflected infrared receiving tube, after the comparator circuit processing, green indicator will light up, at the same time signal output interface to output digital signal (a low level signal). The detection distance can be adjusted with the potentiometer knob, the potentiometer is adjusted clockwise, the sensing distance is increased, and the potentiometer is adjusted counterclockwise to decrease the sensing distance. Detection distance 2 ~ 30cm, detection angle 35 °. The output output OUT of the sensor module can be connected directly to the MCU-IO port or directly control a 5 V relay, connection mode: VCC-VCC, GND-GND, OUT-IO. The module can be operated with a 3-5 V DC power supply. When the unit is turned on, the red power indicator lights up. With the comparator LM393, stable operation. This IR Infrared Obstacle Avo