8-Channel IR Sensor Array Module – Line Following & Edge Detection Sensor for Arduino, Robotics & DIY Projects

Technical Specifications

• Type: 8-Channel Infrared (IR) Reflective Sensor Array
• Sensors Used: 8 × IR LED + Photodiode / Phototransistor pairs
• Operating Voltage: 3.3V – 5V
• Output Type: Digital (D0) / Analog (A0) depending on model
• Signal Type: High = White Surface, Low = Black Line (line-following mode)
• Detection Range: 0.5cm – 3cm (varies by surface)
• Adjustable Sensitivity: Yes, via onboard potentiometers (if available)
• Indicators: LED indicators for each channel
• Communication: Individual channel outputs + combined analog output
• Mounting: 2–4 mounting holes (varies by board design)
• Board Size: Approx. 8–10cm (varies by manufacturer)
• Compatible Platforms: Arduino, ESP32, Raspberry Pi, Robotics Kits
• Applications: Line follower robots, maze solving robots, path detection, surface contrast sensing, robotic navigation

Technical Descriptions

The 8 Channel IR Sensor Array is a high-performance line detection module designed for robotics and automation applications. Featuring 8 individual IR reflective sensors, this module offers precise black-and-white surface detection, making it ideal for line-following robots, maze solvers, and path navigation systems.

Each channel detects light reflection independently, allowing the robot to make accurate directional decisions based on real-time surface analysis. With fast digital outputs, optional analog output, and LED indicators for each sensor, the module is easy to calibrate and integrate.

Compatible with Arduino, ESP32, Raspberry Pi, and most robotic controllers, the 8-channel IR array is perfect for students, hobbyists, and developers building smart autonomous robots. It offers reliable performance on both white and black tracks, even under varying ambient lighting.