Equipped with an infrared transmitter (IR LED) and an infrared receiver (photodiode or phototransistor), the module detects objects by emitting infrared light and measuring the reflected signal. Its adjustable sensing distance, digital output, and easy interface make it suitable for beginners and professional developers alike. Whether you’re building an autonomous robot, line-following robot, security system, or industrial automation project, the IR Obstacle Avoidance Sensor offers reliable and cost-effective object detection.