Sensors » Pololu QTR Reflectance Sensors » High-Density (HD) QTR Arrays »
QTRX-HD-07A Reflectance Sensor Array: 7-Channel, 4mm Pitch, Analog Output, Low Current
|pitch × sensors||size
|4 mm × 7||29.0 × 20.0||analog||3.5 mA||17 mA||10 mm|
This array of IR LED/phototransistor pairs 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 and separate controls for the odd and even emitters. 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 40 mm. This version features high-performance, low-current QTRX sensors with lenses.
Alternatives available with variations in these parameter(s): sensor type sensor count sensor pitch output type Select variant…
|Description||Specs (15)||Pictures (7)||Resources (6)||FAQs (0)||On the blog (1)|
QTRX-HD-07A Reflectance Sensor Array.
QTRX-HD-07A Reflectance Sensor Array, front and back views.
QTRX-HD-07A Reflectance Sensor Array dimensions.
Pinout diagram of the QTRX-HD-07A Reflectance Sensor Array.
Demo of IR LED dimming and independent even/odd control on the QTRX-HD-07x (as seen through an old digital camera that can see IR).
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.
The QTR Reflectance Sensor Arrays are available in many different sizes.