QTRX-MD-07A Reflectance Sensor Array: 7-Channel, 8mm Pitch, Analog Output, Low Current

The QTRX-MD-07A Reflectance Sensor Array from Pololu is a 7-channel device with an 8mm pitch and analog output, designed for low current operations. With its compact dimensions of 53.0 x 20.0mm, the sensor array can easily fit into various applications. It operates optimally within a range of 10mm and has a maximum current capacity of 3.5mA for the LED and 17mA for the board.

The sensor array is equipped with an array of IR LED/phototransistor pairs, making it an excellent tool for detecting precise changes in reflectance, such as line detection. It operates smoothly within a voltage range of 2.9V to 5.5V, and uniquely offers dimmable brightness control that is independent of the supply voltage. This feature allows for flexibility and adaptability in various lighting conditions.

One of the standout features of the QTRX-MD-07A Reflectance Sensor Array is its high contrast ratio between light and dark readings. The closer the object, the higher this contrast becomes, allowing for more precise detection and measurements. Moreover, it can detect high-reflectance objects at a distance of up to 40mm, providing a wider operational range compared to many other sensors.

This version of the sensor array comes with high-performance, low-current QTRX sensors equipped with lenses. These sophisticated sensors not only enhance the precision of the device but also contribute to its energy efficiency, making it a reliable and economical choice for various applications.