Pololu QTR-HD-31RC Reflectance Sensor Array: 31-Channel, 4mm Pitch, RC Output 4131

Pololu QTR-HD-31RC Reflectance Sensor Array: 31-Channel, 4mm Pitch, RC Output 4131

Name: Pololu QTR-HD-31RC Reflectance Sensor Array: 31-Channel, 4mm Pitch, RC Output 4131
Brand: Pololu
SKU: PO4131
Price: 41.78 EUR
Availability: InStock

SKU: PO4131

GTIN:>4060137051463

HAN: 4131

Category: Distance/ToF Sensor

41,78 €

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Net: 35,11 €

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Delivery time: 7 - 9 Workdays (DE - int. shipments may differ)

Product Description

Overview

This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection). It operates from 2.9 V to 5.5 V and offers dimmable brightness control independent of the supply voltage and separate controls for the odd and even emitters. 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.

Specifications

Dimensions: 125.0 × 16.5 × 2.5 mm (see the dimension diagram (1MB pdf) for more details)
Operating voltage: 2.9 V to 5.5 V
Sensor type: QTR
Sensor count: 31
Sensor pitch: 4 mm
Full-brightness LED current: 30 mA (independent of supply voltage)
Max board current: 495 mA
Output format: digital I/O-compatible signals that can be read in parallel as timed high pulses
Optimal sensing distance: 5 mm
Maximum recommended sensing distance: 50 mm
Weight: 8.5 g

General specifications

Maximum range:50 mm
Optimal range:5 mm
Minimum operating voltage:2.9 V
Maximum operating voltage:5.5 V
LED current:30 mA¹
Peak wavelength:940 nm
Maximum current draw:495 mA²
Sensor type:QTR
Sensor pitch:4.0 mm
Sensor count:31
Output type:RC (measurable by digital I/O)

Identifying markings

PCB dev codes:irs51a³
Other PCB markings:0J11376³

Notes:

1.Can be dynamically reduced to any of 32 available dimming levels.
2.With all LEDs on at max brightness setting.
3.Note: this does not differentiate between the A and RC output types.

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Datasheet

Schematic

Dimension

Arduino Library for the Pololu QTR Reflectance Sensors

Manufacturer according to GPSR
Pololu Corporation, Pilot Rd. 920, 89119 Las Vegas, Nevada, Vereinigte Staaten, [email protected], https://www.pololu.com/
Responsible person according to GPSR
Eckstein GmbH, Am Ostbahnhof 3, 38678 Clausthal-Zellerfeld, Niedersachsen, Deutschland, [email protected], https://eckstein-shop.de

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Pololu QTR-HD-31RC Reflectance Sensor Array: 31-Channel, 4mm Pitch, RC Output 4131

Datasheet

Schematic

Dimension

Arduino Library for the Pololu QTR Reflectance Sensors

Pololu QTR-HD-31RC Reflectance Sensor Array: 31-Channel, 4mm Pitch, RC Output 4131

Service package

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