Reflectance sensor QTR-1A - module

Index: PLL-00035

Module with QTR bounce sensor with analogue output.Supplyvoltageis 5 V.

Reflectance sensor QTR-1A - module
€1.63 tax excl.
Discontinued product
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Manufacturer: Pololu


The product has been replaced by theQTR-1A bouncesensor- module 2.


  • Power supply voltage: 5,0 V
  • Power consumption: 20 mA
  • Output: Analogue voltage
  • Output signal range: 0 to 5 V supply voltage
  • Optimum operating distance of the sensor: 3 mm
  • Maximum operating distance of the sensor: 6 mm
  • Weight: 0.25 g
Czujnik odbiciowy
Details in thedocumentation.


  • Connection of sensor output to an analog-to-digital converter (e.g. built in microcontroller or analog input in Arduino).
  • Connection via comparator directly to I/O pins.
  • Using the internal comparator built in some microcontrollers.
The manufacturer has preparedlibraries forAVR familymicrocontrollersand forArduinousers, making it easier to operatethe sensor.


Schemat czujnika odbiciowego

DiagramconnectionsQTR-1A sensor on the board. The 150 Ω resistor limits the current flowing through the infrared emitting diode. The 47 kΩ resistor is used to pull up the collector output to the VIN supply voltage.

Package width 0.001 cm
Package height 0.001 cm
Package depth 0.001 cm
Package weight 0.001 kg

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