QTR-1A Reflectance Sensor
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. The reflectance measurement is output as an analog voltage.
| Description | Specs (0) | Pictures (7) | Resources (7) | FAQs (1) | On the blog (1) |
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QTR-1A reflectance sensor schematic diagram. |
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QTR-1A reflectance sensor on a quarter for size reference. |
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QTR-L-1RC reflectance sensor on a quarter next to a QTR-1A reflectance sensor. |
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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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QTR sensor size comparison. Top row: QTRX-HD-07, QTR-HD-07; middle row: QTR-3, QTR-1, QTR-L-1; bottom row: QTR-8. |
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