4101-POLOLU QTR-HD-01RC Reflectance Sensor: 1-Channel, 5mm Wide, RC Output

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US$2.51
4101-POLOLU
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QTR-HD-01RC Reflectance Sensor: 1-Channel, 5mm Wide, RC Output

 This IR LED/phototransistor pair 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 a traditional-style QTRsensor without lenses.

Specifications

  • Dimensions: 5.0 × 20.0 × 3.9 mm (see the dimension diagram (1MB pdf) for more details)
  • Operating voltage: 2.9 V to 5.5 V
  • Sensor type: QTR
  • Sensor count: 1
  • Full-brightness LED current: 30 mA (independent of supply voltage)
  • Max board current: 32 mA
  • Output format: digital I/O-compatible signal that can be read as a timed high pulse
  • Optimal sensing distance: 5 mm
  • Maximum recommended sensing distance: 30 mm
  • Weight: 0.25 g

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