Features: When the module detects an obstacle in front of the signal, the green LED on the board will light up at the level. And the OUT port maintains low signal output. The module detects the distance of 20~300mm and the angle of 35. The detection distance can be adjusted by potentiometer. Clockwise adjust the potentiometer, the distance increases; counterclockwise, the potentiometer is reduced, the distance decreases. The reflectivity and shape of the target is the key to detecting distance. The OUT port of the sensor module can be directly connected to the IO port of the microcontroller, or directly drive a 5V relay. Connection mode: VCC-VCC; GND-GND; OUT-IO. Adopts LM393 comparator, has stable performance. Can be powered by 3-5V DC. when powered on, the red power LED lights up. Has a 3mm screw hole, which is convenient for fixing and installation. The threshold comparison voltage has been adjusted via the potentiometer. Widely used in robot obstacle avoidance, black and white line tracking and so on. Features: Item size: 32 * 14mm / 1.26 * 0.55in Package size: 45 * 45 * 20mm / 1.77 * 1.77 * 0.79in Package weight: 8g / 0.28ounces Note: 1. Due Due to the different display screens and light effects, the actual color of the item may be slightly different from the color shown on the photos. 2.Please allow a little deviation of measurement d? to manual measurement. 3.Please do not adjust the potentiometer if there is no special situation. Package List: 1 * Infrared Obstacle Avoidance Sensor Module