IR Infrared Obstacle Avoidance Sensor Module line Follower Arduino

Two modules Parameter Description When the module detects an obstacle in front of the signal , the circuit board green indicator light levels while continuing output low signal OUT port , the module detects the distance 2 ~ 60cm, detection angle 35 °, the distance can detect potential control to adjust, adjust potentiometer clockwise , the detection distance increases ; counterclockwise adjustment potentiometer, detection distance decreases. 2, the sensor active infrared reflection survey , so the target reflectivity and shape of the detection range of the key. The minimum detection distance which black and white max ; small area of the object distance is small , a large area from the Grand . 3 , the sensor module output port OUT can be directly connected to the microcontroller IO port , but also can directly drive a 5V relay ; Connection : VCC-VCC; GND-GND; OUT-IO 4 , the comparator using LM393, job stability ; 5 , can be 3-5V DC power supply for the module . When the power is turned on, the red power indicator light ; 6, with 3mm screw holes for easy mounting, installation ; 7 , the circuit board size : 3.1CM * 1.5CM 8 , each module is shipped already comparing the threshold voltage adjustable via potentiometer good, non-exceptional circumstances , do not arbitrarily adjust the potentiometer. Three module interface specification ( 3-wire ) 1 VCC external 3.3V-5V voltage ( 5v microcontroller and can be directly connected to 3.3v MCU ) External GND 2 GND 3 OUT small board digital output interfaces ( 0 and 1 )