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QTR-HD-02A Reflectance Sensor Array: 2-Channel, 4mm Pitch, Analog Output

Pololu item #: 4202 190 in stock
Brand: Pololu
Status: Active and Preferred 
RoHS 3 compliant
 Free add-on shipping in USA 
This item could qualify for free shipping Free shipping in USA over $40 

Price break Unit price (US$)
1 2.12
5 1.95
25 1.79
100 1.65


backorders allowed

pitch × sensors size
(mm)
output max current optimal
range
LED board
4 mm × 2 10.2 × 20.0 analog 30 mA 32 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. 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 30 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) 

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