SparkFun Line Sensor Breakout - QRE1113 (Analog) (Q743077)
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| Language | Label | Description | Also known as |
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SparkFun Line Sensor Breakout - QRE1113 (Analog)
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https://spdx.org/licenses/CERN-OHL-1.2
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Electronics
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United States of America
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MIT
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2021-01-19T00:00:00-05:00
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certification.oshwa.org
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en
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SparkFun Electronics
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v12
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auto
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CC BY-SA
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oshwa.org
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CERN
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The board's QRE1113 IR reflectance sensor is comprised of two parts - an IR emitting LED and an IR sensitive phototransistor. When you apply power to the VCC and GND pins the IR LED inside the sensor will illuminate. A 100Ω resistor is on-board and placed in series with the LED to limit current. A 10kΩ resistor pulls the output pin high, but when the light from the LED is reflected back onto the phototransistor the output will begin to go lower.
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