QTR-HD-04A Reflectance Sensor Array: 4-Channel, 4mm Pitch, Analog Output
|pitch × sensors||size
|4 mm × 4||17.0 × 20.0||analog||30 mA||62 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 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
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10 August 2018
Some of the Pololu summer 2018 student engineering interns posing with QTR HD circuit boards they designed. Hi everyone! My name is Matthew, and I...