QTR-1RC Reflectance Sensor

QTR-1RC Reflectance Sensor
Pololu item #: 959 0 in stock

This product has been discontinued.

We are now only selling this product in packs of two

The QTR-1RC reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 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.

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QTR-1RC and QTR-L-1RC reflectance sensor schematic diagram.

QTR-1RC and QTR-L-1RC reflectance sensor schematic diagram.

QTR-1A reflectance sensor on a quarter for size reference.

QTR-1A reflectance sensor on a quarter for size reference.

QTR-L-1RC reflectance sensor on a quarter next to a QTR-1A reflectance sensor.

QTR-L-1RC reflectance sensor on a quarter next to a QTR-1A reflectance sensor.

An example of soldering header pins parallel to QTR-1A PCB for compact installation.

An example of soldering header pins parallel to QTR-1A PCB for compact installation.

QTR-1RC output (yellow) when 1/8" above a white surface and microcontroller timing of that output (blue).

QTR-1RC output (yellow) when 1/8" above a white surface and microcontroller timing of that output (blue).

QTR-1RC output (yellow) when 1/8" above a black line and microcontroller timing of that output (blue).

QTR-1RC output (yellow) when 1/8" above a black line and microcontroller timing of that output (blue).

QTR sensor size comparison. Clockwise from top left: QTR-3RC, QTR-1RC, QTR-L-1RC, QTR-8RC.

QTR sensor size comparison. Clockwise from top left: QTR-3RC, QTR-1RC, QTR-L-1RC, QTR-8RC.