QTR-3RC Reflectance Sensor Array

QTR-3RC Reflectance Sensor Array
Pololu item #: 2457 390 in stock

Price break Unit price (US$)
1 4.95
5 4.25
25 3.75
100 3.49

backorders allowed

This compact module packs three IR LED/phototransistor pairs onto a 1.25″ × 0.3″ board. The sensors are mounted on a 0.375″ pitch, allowing this array to be used as a minimal detector for a line-following robot. Each sensor provides a separate digital I/O-measurable voltage output.

 Description Specs (3) Pictures (7) Resources (8) FAQs (0) On the blog (8) 

Documentation and other information

Pololu QTR Reflectance Sensor Application Note (Printable PDF)

Information about using the Pololu QTR-xA and QTR-xRC reflectance sensors, including sample oscilloscope screen captures of sensor outputs.

Pololu AVR C/C++ Library User’s Guide (Printable PDF)

Information about installing and using the C/C++ libraries provided for use with Pololu products.

Arduino Library for the Pololu QTR Reflectance Sensors (Printable PDF)

This guide explains how to use the QTRSensors library to read Pololu QTR sensors with an Arduino or A-Star 32U4 controller.

Pololu AVR Library Command Reference (Printable PDF)

A reference to commands provided in the Pololu C/C++ and Arduino libraries for the AVR.

Building Line Following and Line Maze Courses (Printable PDF)

Step-by-step instructions for building your own line-following courses.

File downloads

QTR-3RC reflectance sensor array schematic diagram (117k pdf)
Printable schematic diagram for the QTR-3RC reflectance sensor array.
Datasheet for the Sharp GP2S60 compact reflective photointerrupter (164k pdf)
Datasheet for the sensor used on the QTR-3RC and QTR-3A Reflectance Sensor Arrays, the Zumo 32U4 robot front sensor array, and the Optical Encoders for micro metal gearmotors.

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Related Categories

Pololu QTR Reflectance Sensors
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