IR Obstacle Avoidance Sensor Module Key benefits - Enables obstacle avoidance for robots and cars, line counting, and tracking black-and-white patterns - Simple digital output: a low level signal on the signal output interface when an obstacle is detected - Green indicator LED lights to confirm detection - Easy integration: OUT port can be connected directly to a microcontroller IO pin - Directly drive a 5V relay What it is and how it works - The sensor module has a pair of infrared transmitter and receiver tubes. The tubes emit IR light at a fixed frequency. When the emitted IR hits an obstacle with a reflective surface, the IR is reflected and received. After processing by the comparator circuit, the green indicator lights. Simultaneously, a digital low level signal is output via the signal output interface. Ease of use and compatibility - The OUT sensor module output can be connected directly to the IO port of a microcontroller - Suitable for applications that require a simple digital signal and can drive a 5V relay directly Specifications - Detection distance: adjustable from 2 to 30 cm - Detection angle: 35 degrees Applications - Robot obstacle avoidance - Vehicle obstacle sensing or parking aids - Line following and line counting, including tracking black-and-white patterns