This sensor module has strong adaptability to ambient light and features a pair of infrared emitting and receiving tubes. The emitter emits infrared light at a specific frequency. When an obstacle (reflective surface) is detected in the sensing direction, the infrared light is reflected back and received by the receiver. After processing by the comparator circuit, the blue indicator light turns on, and the signal output interface outputs a digital signal (a low-level signal). The detection distance can be adjusted using a potentiometer knob, with an effective range of 2 to 30 cm. The operating voltage is 3.3V-5V. The sensor’s detection distance can be adjusted using the potentiometer. It has features such as low interference, easy assembly, and convenient use. It can be widely used in applications such as robot obstacle avoidance, obstacle-avoiding cars, conveyor belt counting, and black-and-white line tracking. Schematic Diagram
