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Reflectance Sensor QTR-HD-04A, 4 Channel, 4mm Pitch, Analogue Output

(£2.96 UK, incl VAT)
Price in points: 495 points
In stock

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 the traditional-style QTR sensors without lenses.

pitch × sensors size
output max current optimal
LED board
4 mm × 4 17.0 × 20.0 analog 30 mA 62 mA 5 mm

For further technical information, please see the main product page here

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