Pololu QTRX-MD-08RC Reflectance Sensor Array: 8-Channel, 8mm Pitch, RC Output, Low Current

Item number: PO4348

Category: Reflectance Sensor


6,21 €

including 19% VAT.,

Old price: 10,46 €
Available now!

Shipping time: 1 - 2 workdays



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. 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 40 mm. This version features high-performance, low-current QTRX sensors with lenses.

Specifications

  • Dimensions: 61.0 × 20.0 × 3.0 mm (see the dimension diagram (1MB pdf) for more details)
  • Operating voltage: 2.9 V to 5.5 V
  • Sensor type: QTRX
  • Sensor count: 8
  • Sensor pitch: 8 mm
  • Full-brightness LED current: 3.5 mA (independent of supply voltage)
  • Max board current: 17 mA
  • Output format: digital I/O-compatible signals that can be read in parallel as timed high pulses
  • Optimal sensing distance: 10 mm
  • Maximum recommended sensing distance: 40 mm
  • Weight: 3.1 g

General specifications

  • Maximum range:40 mm
  • Optimal range:10 mm
  • Minimum operating voltage:2.9 V
  • Maximum operating voltage:5.5 V
  • LED current:3.5 mA1
  • Peak wavelength:940 nm
  • Maximum current draw:17 mA2
  • Sensor type:QTRX
  • Sensor pitch:8.0 mm
  • Sensor count:8
  • Output type:RC (measurable by digital I/O)

Identifying markings

  • PCB dev codes:irs35j3
  • Other PCB markings:0J113883

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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