translation missing: en.general.accessibility.skip_to_content
Please Note: Backordered items may experience extended lead times due to COVID-19, click for more information.
Backordered items may experience extended lead times due to COVID-19.

QTRX-HD-07A Reflectance Sensor Array: 7-Channel, 4mm Pitch, Analog Output, Low Current

by Pololu
SKU 2795
£7.99 inc VAT
£6.66 ex VAT
8 in stock.

More available in 5-7 days.
Available for backorder (more info)

These QTR reflectance sensor arrays feature seven IR emitter/phototransistor pair modules in a high-density (4 mm pitch) arrangement, which makes them well suited for applications that require precise detection of changes in contrast, such as line sensing. Unlike the original QTR sensor modules, these units have integrated LED drivers that provide brightness control independent of the supply voltage, which can be anywhere from 2.9 V to 5.5 V, while enabling optional dimming to any of 32 possible brightness settings. There are separate controls for the odd-numbered and even-numbered LEDs, which gives you extra options for detecting light reflected at various angles.

This “QTRX” version features higher-performance sensor modules with lenses, which allow brilliant performance at a much lower IR LED current.

Note: Headers or connectors are not included.

  • Dimensions: 29mm × 20mm × 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