• Description

QTR Reflective Array 31 Channel - Analog Output

This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection). It operates from 2.9V to 5.5V and offers dimmable brightness control independent of the supply voltage. In general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 50 mm. This version features the traditional-style QTR sensors without lenses.

Quick Spec

• Maximum Range: 50 mm
• Optimal Range: 5 mm
• Minimum Operating Voltage: 2.9V
• Maximum Operating Voltage: 5.5V
• LED Current: 30 mA (Can be dynamically reduced to any of 32 available dimming levels)
• Peak Wavelength: 940 nm
• Maximum Current Draw: 495 mA (With all LEDs on at max brightness setting)
• Sensor Type: QTR
• Sensor Pitch: 4.0 mm
• Sensor Count: 31
• Output Type: Analog Voltages

Dimensions

Pinout

Code

Resources

• Product Page
• Pololu QTR Reflectance Sensor Application Note
• Arduino Library for the Pololu QTR Reflectance Sensors
• Schemtic
• Mechanical Diagram

Shipping List

• 1 X QTR Reflective Array 31 Channel - Analog Output

QTR Reflective Array 31 Channel - Analog Output

• Brand: Pololu Electronics
• Product Code: 4231
• Product Status : Active

Stock

Warehouse	Stock Status	Location
Centurion	Limited Stock	FF179
Stellenbosch	Limited Stock	C0119
Bulk Location	No Stock

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• R358.00 (Inc Tax: R411.70)