Pololu QTR-HD-05RC Reflectance Sensor Array: 5-Channel, 4mm Pitch, RC Output

Artikelnummer: PO4105

EAN: 4060137052224

HAN: 4105

Herkunftsland: US

UPC: 802236929

Kategorie: Reflektionssensor

3,82 €

inkl. 16% USt.,

Alter Preis: 4,61 €
sofort verfügbar

Lieferfrist: ca. 1 - 3 Tage




These reflectance sensors feature a linear array of infrared emitter/phototransistor pair modules in a high-density (4 mm pitch) or medium-density (8 mm pitch) arrangement, which makes them well suited for applications that require detection of changes in reflectivity. This change in reflectivity can be due to a color change at a fixed distance, such as when sensing a black line on a white background, as well as due to a change in the distance to or presence of an object in front of the sensor. A variety of sensor counts and densities is available so you can pick the ideal arrangement for your application. Since the outputs are all independent, you can connect just some of the channels to attain an irregular or non-standard sensor spacing.

Unlike our 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. For high-density (HD) modules with five or more sensors, there are separate controls for the odd-numbered and even-numbered LEDs, which gives you extra options for detecting light reflected at various angles. See the ?Emitter control? section below for more information on using this feature.


  • Dimensions: 21.0 × 20.0 × 2.5 mm 
  • Operating voltage: 2.9 V to 5.5 V
  • Sensor type: QTR
  • Sensor count: 5
  • Sensor pitch: 4 mm
  • Full-brightness LED current: 30 mA (independent of supply voltage)
  • Max board current: 93 mA
  • Output format: digital I/O-compatible signals that can be read in parallel as timed high pulses
  • Optimal sensing distance: 5 mm
  • Maximum recommended sensing distance: 40 mm
  • Weight: 1.2 g


Size: 21.0 × 20.0 × 2.5 mm
Weight: 1.2 g

General specifications

Maximum range: 40 mm
Optimal range: 5 mm
Minimum operating voltage: 2.9 V
Maximum operating voltage: 5.5 V
LED current: 30 mA1
Peak wavelength: 940 nm
Maximum current draw: 93 mA2
Sensor type: QTR
Sensor pitch: 4.0 mm
Sensor count: 5
Output type: RC (measurable by digital I/O)


1 Can be dynamically reduced to any of 32 available dimming levels.
2 With all LEDs on at max brightness setting.
3 Note: this does not differentiate between the A and RC output types.

Schauen Sie sich bitte den Reiter 'Dokumente' für weitere Informationen an.


1x Pololu QTR-HD-05RC Reflectance Sensor Array: 5-Channel, 4mm Pitch, RC Output





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