DESCRIPTION
This array of IR LED/phototransistor pairs is great for precisely identifying changes in reflectance (like line detection). It operates from 2.9V to 5.5V 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 30mm.
These reflectance sensors feature a linear array of IR emitter/phototransistor pair modules in a high-density (4mm pitch) or medium-density (8mm pitch) arrangement, which makes them well suited for applications that require the detection of changes in reflectivity. This change in reflectivity can be due to a colour change at a fixed distance, such as when sensing a black line on a white background, as well as due to a change in the distance to or presence of an object in front of the sensor. A variety of sensor counts and densities is available so you can pick the ideal arrangement for your application. Since the outputs are all independent, you can connect just some of the channels to attain an irregular or non-standard sensor spacing.
These units have integrated LED drivers that provide brightness control independent of the supply voltage, which can be anywhere from 2.9V to 5.5V, while enabling optional dimming to any of 32 possible brightness settings. For high-density (HD) modules with five or more sensors, there are separate controls for the odd-numbered and even-numbered LEDs, which gives you extra options for detecting light reflected at various angles.
This QTRX version features higher-performance sensor modules with lenses, which allow high performance at a much lower IR LED current.
FEATURES
- Dimensions: 10.2mm × 20.0mm × 3.0mm
- Operating voltage: 2.9V to 5.5V
- Sensor type: QTRX
- Sensor count: 2
- Sensor pitch: 4mm
- Full-brightness LED current: 3.5mA (independent of supply voltage)
- Max board current: 5mA
- Output format: digital I/O-compatible signals that can be read in parallel as timed high pulses
- Optimal sensing distance: 10mm
- Maximum recommended sensing distance: 50mm
- Weight: 0.6g
RESOURCES
- Schematic diagrams of the QTR/QTRX-HD Reflectance Sensor Arrays
- Dimension diagrams of the QTR/QTRX Reflectance Sensor Arrays
- Drill drawings (DXF) for the QTR/QTRX Reflectance Sensor Arrays
- Arduino Libraries
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Orders that include more than one item are given processing time in accordance with the item.
Before shipping, all ordered items will be thoroughly examined. The majority of orders are delivered within 48 hours. The delivery time is between 3 and 7 working days.
Returns
The stock market is always changing. It is not managed entirely by us, since we are involved with multiple organizations, such as the factory and our storage. Stock levels can fluctuate at any time. Be aware that your order could become unfulfilled after you place the order.
Our policy is valid for 30 days. If you don't receive your item within 30 days, we are not able to provide a refund or an exchange.
In order for your item to be returned the item must not be opened and in the same state as you received it. You must have the item in the original packaging.
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