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.
Specifications:
Dimensions: 61.0 × 20.0 × 3.0 mm
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)
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