Description An IR (Infrared) line tracking sensor is a device that detects and tracks a line on a surface using infrared light. It is widely used in robotics and automation for tasks that require precise positioning or navigation. The sensor is composed of two or more IR emitter and receiver pairs, typically arranged in a line or an array. The IR emitters emit a beam of infrared light, which reflects off the surface and is detected by the corresponding IR receivers. By analyzing the intensity of the reflected light, the sensor can determine the position of the line relative to the sensor. The sensor can detect both black lines on white surfaces and white lines on black surfaces, as it detects the contrast between the line and the background. The sensitivity of the sensor can be adjusted to detect lines of different widths and colors. Some IR line tracking sensors also have built-in PID (Proportional Integral Derivative) controllers, which enable them to adjust the robot’s speed and direction to keep it on the line.










