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Pololu QTR-HD-07RC Reflectance Sensor Array

€5.20 *

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  • Pololu
  • EXP-R25-1201
  • 4107
  • 3
  • US
  • 90275000
  • 0.002
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This sensor module has seven IR LED/phototransistor pairs mounted on a high-density 4 mm pitch,... more

This sensor module has seven IR LED/phototransistor pairs mounted on a high-density 4 mm pitch, making it well suited for precisely identifying changes in contrast/reflectance (like line-detection). Tthese units offer dimmable brightness control independent of the 2.9 V to 5.5 V supply voltage, with optional separate control of the odd and even sensor channel emitters. The optimal sensing distance is approximately 0.5 cm or less, but high-reflectance objects are generally detectable out to around 5 cm.

This version features the traditional-style QTR sensors without lenses, and each sensor provides a separate digital I/O-measurable output. Max LED current is set to 30 mA, and the max board current is 125 mA.

Specifications:

  • Dimensions: 29 × 20 × 0.3 mm
  • Operating voltage: 2.9 V to 5.5 V
  • Max LED current: 3.5 mA
  • Max board current: 15 mA
  • Output format: 7 analog voltages
  • Output voltage range: 0 V to VCC
  • Optimal sensing distance: 1 cm
  • Maximum recommended sensing distance: 5 cm
  • Weight: 1.6 g
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