The Grayscale Line Detection Sensor is primarily used in line-following robots. It offers high sensitivity and strong anti-interference capabilities, with minimal impact from regular lighting. The sensor features a pair of anti-interference grayscale sensors and a high-brightness LED light source. The receiver tube processes varying levels of reflected light, allowing it to detect differences in reflection intensity— the larger the contrast, the better the resolution. Compared to ordinary infrared sensors, this sensor has significantly stronger anti-interference performance.

Features:

• High Sensitivity & Anti-Interference: Equipped with high-sensitivity grayscale sensors and a high-brightness LED, it excels in environments with varied lighting, ensuring reliable line detection even under normal lighting conditions.
• Color Recognition: Capable of recognizing common race track colors, including green and white, black and white, blue and white, and red and green, with excellent recognition performance. It can also detect other colors with significant grayscale value differences.
• Detection Range: The optimal detection distance is 10-50mm from the sensor head to the ground, with a recommended range of 15-25mm. Below 10mm is considered a blind zone.
• Clear Signal Indicators: Features 7 LED indicators that provide visual feedback. When the sensor detects a higher grayscale value, the output signal changes from high to low, illuminating the corresponding LED.
• Digital Signal Output: The sensor outputs a digital signal (1 or 0), which simplifies programming and control. The signal sensitivity can be adjusted based on the environment, such as changes in lighting conditions.
• Voltage Comparator: The sensor uses a voltage comparator with two voltage inputs: one from the receiver tube and one as the reference voltage from the potentiometer. The reference voltage is adjusted according to the voltage values for two color types.
• Easy Calibration: To calibrate, position the sensor probe above a lighter-colored area of the track, and adjust the potentiometer clockwise until the LED lights up. Then, move it to a darker area and adjust until the LED turns off. The sensor will output different signals for the two colors detected.

Applications:

• Line Following Robots: Ideal for use in intelligent vehicles and line-following competitions, this sensor module allows robots to accurately track lines with high precision.
• Race Track Recognition: Excellent performance in recognizing commonly used color combinations like green and white, black and white, and others in line-following competitions.
• Educational and Experimental Robotics: A great choice for DIY projects, educational kits, and experimental robots that require reliable line tracking in various lighting conditions.
• Industrial Automation: Can be used in industrial applications where line detection is needed, such as automated guided vehicles (AGVs) or conveyor systems that follow specific paths.