QTR-L-1RC Reflectance Sensor (2-Pack)
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.
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QTR-1RC and QTR-L-1RC reflectance sensor schematic diagram.
QTR-L-1RC reflectance sensor on a quarter next to a QTR-1A reflectance sensor.
QTR-L-1RC reflectance sensor emitter and detector sides with labeled pinout.
QTR-L-1A or QTR-L-1RC reflectance sensor (2-pack) with included header pins.
QTR-L-1A and QTR-L-1RC reflectance sensors plugged into a breadboard in two possible orientations.