QTR-8RC 8 Channel IR Line Tracking Sensor Array Panel

The QTR-8RC 8 Channel IR Line Tracking Sensor Array Panel is a compact and powerful sensor module specially designed for line-following robots and autonomous navigation systems. Equipped with eight high-sensitivity IR emitter/receiver pairs, this sensor array delivers reliable and accurate black line detection on white surfaces (and vice versa with code adjustments).

Each sensor provides a digital RC output, making it ideal for microcontrollers like Arduino, ESP32, Raspberry Pi, and other development boards. The QTR-8RC uses infrared reflectance to detect lines and edges, and it’s capable of measuring very small changes in surface reflectivity, enabling precise motion control in robotic applications.

With adjustable sensor spacing, lightweight PCB, and easy-to-connect interface, this sensor array is ideal for maze-solving robots, line followers, and AGVs. Elevate your next robotics project with this versatile and responsive sensor from eleberric.com — Sri Lanka’s trusted electronics store.

Specifications

• Sensor Type: 8 x IR emitter/receiver pairs

• Output Type: Digital (RC timing-based output)

• Operating Voltage: 3.3V – 5V DC

• Current Consumption: ~100 mA (typical)

• Optimal Sensing Distance: 3 mm – 6 mm

• Sensor Spacing: ~9.525 mm (0.375 inches)

• Output Pins: 8 sensor outputs + VCC + GND

• Weight: ~5g

• Dimensions: Approx. 75mm x 20mm x 3mm

• Compatibility: Arduino, STM32, ESP8266, Raspberry Pi, etc.

Key Features

• 8 independent IR channels for accurate path detection

• Supports high-speed line tracking and edge following

• Compact and lightweight for integration into small robots

• Works on both light and dark surfaces with code tuning

• Digital output using RC time for easier signal processing

• Ideal for PID-controlled motion systems

• Easily programmable with open-source libraries

• Compatible with most microcontroller platforms

Applications

• Line following and maze-solving robots

• Automated Guided Vehicles (AGVs)

• Mobile robot navigation systems

• Educational STEM robotics kits

• Competitive robotics (like RoboCup, Line Tracer)

• Industrial automation prototypes using optical sensors

Give your robot the eyes it needs to stay on track with the QTR-8RC 8 Channel IR Line Tracking Sensor. Available now on eleberric.com — your go-to source for robotics and electronics in Sri Lanka.