QTR-3A Reflectance Sensor Array

QTR-3A Reflectance Sensor Array
Pololu item #: 2456 358 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, making this array a great minimal sensing solution for a line-following robot. Each sensor provides a separate analog voltage output.

 Description Specs (3) Pictures (7) Resources (7) FAQs (0) On the blog (2) 
QTR-3A reflectance sensor array.

QTR-3A reflectance sensor array.

QTR-3A or QTR-3RC reflectance sensor array, bottom view with dimensions.

QTR-3A or QTR-3RC reflectance sensor array, bottom view with dimensions.

QTR-3A or QTR-3RC reflectance sensor array on a 3/4" line with a quarter for size reference.

QTR-3A or QTR-3RC reflectance sensor array on a 3/4" line with a quarter for size reference.

QTR-3A or QTR-3RC reflectance sensor array with included header pins.

QTR-3A or QTR-3RC reflectance sensor array with included header pins.

QTR-3A and QTR-3RC reflectance sensor arrays soldered in different orientations.

QTR-3A and QTR-3RC reflectance sensor arrays soldered in different orientations.

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.

Schematic diagram for the QTR-3A reflectance sensor array.

Schematic diagram for the QTR-3A reflectance sensor array.