QTR-1RC Reflectance Sensor

Pololu item #: 959

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.

 Description Specs (0) Pictures (7) Resources (7) FAQs (1) On the blog (0) 

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

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.

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 black line and microcontroller timing of that output (blue).

QTR sensor size comparison. Top row: QTRX-HD-07, QTR-HD-07; middle row: QTR-3, QTR-1, QTR-L-1; bottom row: QTR-8.


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