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QTR-1A Reflectance Sensor (2-Pack)

Product Code
:
13163
Brand / Origin
:
Pololu
In Stock
:
10+
Without Vat
:
25.27 TL
In Stock:

-

+

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  • The Pololu QTR-1A reflectance sensor carries a single infrared LED and phototransistor pair. The phototransistor is connected to a pull-up resistor to form a voltage divider that produces an analog voltage output between 0 V and VIN (which is typically 5 V) as a function of the reflected IR. Lower output voltage is an indication of greater reflection.

    The LED current-limiting resistor is set to deliver approximately 17 mA to the LED when VIN is 5 V. The current requirement can be met by some microcontroller I/O lines, allowing the sensor to be powered up and down through an I/O line to conserve power.

    This sensor was designed to be used with the board parallel to the surface being sensed. Because of its small size, multiple units can easily be arranged to fit various applications such as line sensing and proximity/edge detection.

    Features:

    • 5VDC Operating Voltage
    • 17mA Supply Current
    • Digital I/O Compitable
    • Optimal Sensing Distance: 0.125” (3mm)

    Dimensions:

    • 7.62x 12.7x 2.54 mm
    Documents:

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