QTR-L-1RC Reflectance Sensor (2-Pack) Pololu 2455

The QTR-L-1RC reflectance sensor incorporates a right-angle infrared LED and a right-angle phototransistor in an inexpensive, tiny 0.35″ × 0.3″ module that can be mounted almost anywhere and is great for edge detection and line following. The output is designed to be measured by a digital I/O line. This sensor is sold in packs of two units.

 

Specifications

• Dimensions: 0.3″ × 0.35″ × 0.12″ (without optional header pins installed)
• Operating voltage: 5.0 V
• Supply current: 17 mA
• Output format: digital I/O-compatible signal that can be read as a timed high pulse
• Optimal sensing distance: 0.125″ to 0.25″ (3 mm to 6 mm)
• Maximum recommended sensing distance: 1″ (25 mm)
• Weight without header pins: 0.006 oz (0.2 g)