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The IR Infrared Obstacle Avoidance Sensor Module detection range can be through the potentiometer to adjust and have small interference, easy to assemble, easy to use. It can be widely used in robot obstacle avoidance, obstacle avoidance car, line count, and black and white line tracking and so on Specification The output port OUT sensor module can be directly connected to the microcontroller IO port , you can directly drive a 5V relay ; the module detects the distance 2 ~ 30cm, detection angle 35 °, the distance can detect potential is adjusted Can be used for 3-5V DC power supply modules When the power is turned on, the red power indicator light Using the comparator LM393 Interface : 1. VCC: External 3.3V-5V voltage (can be directly connected to 5v MCU and 3.3v MCU) 2. GND: GND External 3. OUT: Small board digital output interfaces (0 and 1) Connection : VCC-VCC; GND-GND; OUT-IO With the screw holes of 3mm , easy fixed installation