Pololu QTRX-HD-04A Reflectance Sensor Array: 4-Channel, 4mm Pitch, Analog Output, Low Current

The QTRX-HD-04A Reflectance Sensor Array is a 4-channel device with 4mm pitch and analog output. It's compact, measuring just 17.0mm x 20.0mm, and operates at a low current. The array features IR LED/phototransistor pairs, ideal for detecting changes in reflectance, such as line detection. It operates effectively from a voltage range of 2.9V to 5.5V, and the brightness can be dimmed independently of the supply voltage. The QTRX-HD-04A Reflectance Sensor Array is perfect for applications that require precise detection of changes in reflectance. For instance, it can be used in robotics for line detection or object recognition. The closer the object, the higher the contrast between light and dark readings. However, it can generally detect high-reflectance objects up to approximately 40mm away.The QTRX-HD-04A Reflectance Sensor Array stands out due to its high-performance, low-current QTRX sensors with lenses. These sensors deliver accurate and reliable readings, making the array a dependable choice for various applications. Moreover, the array's low power consumption makes it an energy-efficient choice. With a maximum LED current of 3.5mA and a board current of 9mA, the QTRX-HD-04A Reflectance Sensor Array is designed to deliver optimal performance while keeping energy use to a minimum.Benefit from the QTRX-HD-04A Reflectance Sensor Array's compact size and high efficiency. Its small footprint allows it to be integrated into a variety of systems without taking up much space. Plus, its ability to operate at a low current while delivering high performance makes it a cost-effective and energy-efficient solution for your reflectance detection needs.