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QTR-1A Reflectance Sensor
 
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The QTR-1A reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5" x 0.3" module that can be mounted almost anywhere and is great for edge detection and line following applications. The reflectance measurement is output as an analog voltage.
| Description | Pictures (5) | Resources (4) | FAQs (1) |
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QTR-1A reflectance sensor schematic diagram. |
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QTR-1A reflectance on a quarter for size reference. |
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An example of soldering header pins parallel to QTR-1A PCB for compact installation. |
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QTR-1A output 1/8" away from a spinning white disk with a black line on it. |
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QTR-1A output 3/8" away from a spinning white disk with a black line on it. |
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