About this item

The SparkFun SEN-11769 RedBot Sensor – Line Follower is a compact and reliable infrared sensor module designed to help robots detect and follow lines or edges on various surfaces. This sensor uses an infrared LED paired with a phototransistor to measure the reflectivity of the surface beneath it. By detecting the contrast between light and dark surfaces, such as black electrical tape on a white background, it enables autonomous robots to stay on track by following predefined paths. The sensor outputs an analog voltage proportional to the amount of reflected infrared light, which can be easily read by microcontrollers such as Arduino, RedBot, or other robotics platforms. Its simple three-pin interface (power, ground, and analog output) makes it straightforward to integrate into robotic systems and control algorithms. Designed for educational and hobbyist robotics, the RedBot Line Follower is ideal for projects like maze-solving robots, line-following competitions, and autonomous navigation. It features a compact footprint for easy mounting underneath robot chassis and offers quick response times for real-time course corrections. With durable construction and consistent performance, the SEN-11769 enables developers to implement reliable line-following behavior in their robots with minimal setup.