QTR-HD-05A Reflectance Sensor Array: 5-Channel, 4mm Pitch, Analog Output

Pololu item #: 4205 28 in stock
Brand: Pololu
Status: Active and Preferred 
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This item could qualify for free shipping Free shipping in USA over $40 

Price break Unit price (US$)
1 4.26
5 3.92
25 3.61
100 3.32


backorders allowed

pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 5 21.0 × 20.0 analog 30 mA 93 mA 5 mm

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 40 mm. This version features the traditional-style QTR sensors without lenses.

Alternatives available with variations in these parameter(s): sensor type sensor count sensor pitch output type Select variant…

 Description Specs (15) Pictures (7) Resources (6) FAQs (0) On the blog (1) 

Documentation and other information

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.


File downloads

Schematic diagrams of the QTR/QTRX-HD Reflectance Sensor Arrays (206k pdf)
Dimension diagrams of the QTR/QTRX Reflectance Sensor Arrays (1MB pdf)
3D models (STEP) of the QTR/QTRX Reflectance Sensor Arrays (50MB zip)
This file contains 3D models (in the step file format) of the QTR and QTRX Reflectance Sensor Arrays.
Drill guides (DXF) for the QTR/QTRX Reflectance Sensor Arrays (86k zip)
These DXF drawings show the locations of all of the holes on the QTR and QTRX Reflectance Sensor Arrays.

Related Categories

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Medium-Density (MD) QTR Arrays
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