TR-8A Line Follower IR Reflectance Sensor 8 Array
The QTR-8A Reflectance Sensor Array is a high-precision line sensor module designed for line following, maze solving, and object detection projects. It features 8 IR emitter and receiver pairs evenly spaced at 9.525mm intervals, providing accurate reflectance measurement for robotics applications. Each sensor produces an analog voltage output (0V–5V) depending on the reflected infrared light — lower voltage means higher reflection. The outputs are independent, ensuring smooth line detection and tracking. The built-in MOSFET control allows you to turn the IR LEDs on/off via a microcontroller, which helps in saving power or controlling LED brightness using PWM. The module supports both 5V and 3.3V operation, with typical current consumption below 100mA.
Specification:
• Operating Voltage: 3.3-5.0 V
• Supply current: 100 mA
• Output format: 8 digital I/O-compatible signals that can be read as a timed high pulse
• Optimal sensing distance: 0.125" (3 mm)
• Maximum recommended sensing distance: 0.375" (9.5 mm)
• Weight without header pins: 0.11 oz (3.09 g)
• Dimensions: 2.95" x 0.5" x 0.125" (without header pins installed)
Applications:
• Robot (Line follower, Maze solver etc.)
• Smart Car
• Laboratory
• DIY
Package Includes:
1 x QTR-8A Line Follower IR Reflectance Sensor 8 Array
The QTR-8A Line Follower Sensor 8 Array is a high-performance IR reflectance sensor module ideal for line following, maze-solving, and robotics projects. It features 8 infrared emitter-receiver pairs for precise line detection, low power consumption, and smooth performance with Arduino or microcontrollers.
৳300
