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QTR-MD-01A Reflectance Sensor: 1-Channel, 7.5mm Wide, Analog Output
| sensors | size (mm) |
output | max current | optimal range |
|
|---|---|---|---|---|---|
| LED | board | ||||
| 1 | 7.5 × 20.0 | analog | 30 mA | 32 mA | 5 mm |
This IR LED/phototransistor pair is great for precisely identifying changes in reflectance (like line detection). It operates from 2.9 V to 5.5 V and offers dimmable brightness control independent of the supply voltage. In general, the closer the object, the higher the contrast between light and dark readings, but high-reflectance objects are generally detectable out to around 30 mm. This version features a traditional-style QTR sensor without lenses.
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Compare all products in Medium-Density (MD) QTR Arrays or Single-Channel QTR Reflectance Sensors.
| Description | Specs (14) | Pictures (7) | Resources (6) | FAQs (0) | On the blog (1) |
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QTR-MD-01A Reflectance Sensor. |
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QTR-MD-01A Reflectance Sensor, front and back views. |
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QTR-MD-01A Reflectance Sensor dimensions. |
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Pinout diagram of the QTR-MD-01A Reflectance Sensor Array. |
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Demo of IR LED dimming and independent even/odd control on the QTR-HD-07x (as seen through an old digital camera that can see IR). |
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Schematic diagrams of individual QTR sensor channels for A version (left) and RC version (right). This applies only to the newer QTRs with dimmable emitters. |
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The QTR Reflectance Sensor Arrays are available in many different sizes. |
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