QTR-MD-02RC Reflectance Sensor Array: 2-Channel, 8mm Pitch, RC Output

The QTR-MD-02RC Reflectance Sensor Array is a top-notch product from Pololu that offers a 2-channel, 8mm pitch with RC output. The compact size of 13.0mm by 20.0mm makes it an ideal choice for applications where space is a constraint. The sensor array has a maximum current capacity of 30mA for the LED and 32mA for the board. It operates optimally within a range of 5mm.

The QTR-MD-02RC Reflectance Sensor Array stands out for its ability to precisely identify changes in reflectance. This makes it an excellent tool for tasks such as line detection. The array consists of IR LED/phototransistor pairs that work seamlessly to deliver accurate results.

The sensor array operates within a voltage range of 2.9V to 5.5V. It also offers dimmable brightness control that is independent of the supply voltage. This feature provides flexibility and convenience, allowing for adjustments according to specific project requirements.

One of the unique properties of the QTR-MD-02RC Reflectance Sensor Array is its sensitivity to proximity. The closer the object, the higher the contrast between light and dark readings. However, it's worth noting that high-reflectance objects are generally detectable up to around 30mm. This version of the sensor array features the traditional-style QTR sensors without lenses, providing a straightforward and efficient user experience.

Overall, the QTR-MD-02RC Reflectance Sensor Array is a versatile and dependable tool from Pololu that delivers precise and reliable results. Its compact size, flexible voltage operation, and sensitivity to proximity make it a valuable addition to any project that requires precise detection and measurement of changes in reflectance.