Infrared Ir Smart Car Obstacle Avoidance Sensor Photoelectric Reflective

This Listing is for a Infra Red IR Smart car Obstacle Avoidance Sensor.When the module detects an obstacle in front of the signal , the green indicator light on the board level , while low-level continuous output signal OUT port , the module detects the distance  from 2 ~ 30cm and detection at a angle of 35 °. You can Adjust the detection distance on the potentiometer so turn it clockwise to increases the detection distance and counterclockwise to adjust the potentiometer to reduce the detection distance . It uses active infrared sensors to detect the obstacle , and thus the shape of the reflectivity of the target detection range is critical . the output port OUT sensor module can be directly connected to the microcontroller IO port , you can directly drive a 5V relay ; Connection : VCC-VCC; GND-GND; OUT-IO using the comparator LM393, stable. It can be used for 3-5V DC power supply modules . When the power is turned on, the red power indicator lights  and with the screw holes of 3mm it's easy to do the installation. Board size is 3.1CM * 1.5CM and each module shipments comparing the threshold voltage has been adjusted on the potentiometer so only in exceptional circumstances adjust the potentiometer. 

Interface Description (3-wire):