QTR-3A Reflectance Sensor Array

Documentation and other information

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  Pololu QTR Reflectance Sensor Application Note (Printable PDF)

  Information about using the Pololu QTR reflectance sensors, including differences between A-type and RC-type sensors and sample oscilloscope screen captures of sensor outputs.
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  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.
• 

  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-3A reflectance sensor array schematic diagram (115k pdf)

  Printable schematic diagram for the QTR-3A 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.

• Dimension diagram of the QTR-3x Reflectance Sensor Array (130k pdf)

• 3D model of the QTR-3A Reflectance Sensor Array (3MB step)

• Guide utilisateur du senseur QTR (suiveur de ligne) (1MB pdf)

  Un guide utiliser et exploiter un senseur QTR (détecteur de ligne) (version 0.1). Note: This French translation of our QTR sensor documentation was made by our distributor MCHobby.

Recommended links

• mbed library for QTR sensors

  Matthew Phillipps ported our Arduino Library for the Pololu QTR Reflectance Sensors to the mbed platform. The Arduino library is designed to work with Pololu QTR reflectance sensors, so the mbed library should too, but Matthew points out he only tested it with the analog sensors. This library was not written and is not maintained by Pololu.

• Arduino library for the Pololu QTR Reflectance Sensors

  This library for Arduino makes it easy to interface with Pololu QTR Reflectance Sensors.