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: 17mm x 20mm x 3mm
- Weight: 1g
- Sensor Count: 4
- Sensor Pitch: 4mm
- Maximum Range: 30mm
- Optimal Range: 10mm
- Min Operating Voltage: 2.9V
- Max Operating Voltage: 5.5V
- LED Current: 3.5mA
- Peak Wavelength: 5mA
- Sensor Type: QTRX
- Output Type: A (analogue voltages)
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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Note: Orders with more than one product will be assigned a distinct processing time, dependent on the particular item.
Before shipping, we will examine the items ordered thoroughly before sending the items. The majority of orders are shipped within 48 hrs. The delivery estimate is between 3-7 days.
Returns
The stock is constantly changing and cannot be fully controlled by us because of the involvement of several parties including the factory and our warehouse. Stock levels can fluctuate at any given time. Please be aware that it is possible that your order could become unavailable even after you've placed your order.
Our policy is valid for a period of 30 days. If 30 days have passed by since your purchase however, we're unable to give an exchange or refund.
In order to be eligible for a refund your product must be unopened and in the same state as you received it. It should also be in the original package.
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