Pololu QTR-HD-01A Reflectance Sensor: 1-Channel, 5mm Wide, Analog Output

The QTR-HD-01A Reflectance Sensor is a compact, single-channel device with a width of 5mm and length of 20mm. It features an analog output, with a maximum current of 30mA for the LED and 32mA for the board. The sensor operates optimally within a 5mm range. The QTR-HD-01A Reflectance Sensor utilizes an IR LED/phototransistor pair, making it an excellent choice for identifying changes in reflectance with precision. This makes it particularly useful for applications such as line detection. The sensor operates effectively within a voltage range of 2.9V to 5.5V, and also provides the flexibility of dimmable brightness control, independent of the supply voltage.One of the key benefits of this sensor is its ability to distinguish high-contrast differences between light and dark readings. This capability is generally more pronounced when the object is closer to the sensor. However, it is also capable of detecting high-reflectance objects at a distance of up to approximately 30mm. Unlike many other sensors, the QTR-HD-01A Reflectance Sensor does not incorporate lenses, which gives it a traditional QTR sensor design.The QTR-HD-01A Reflectance Sensor, with its unique properties and features, offers a reliable solution for a variety of applications that require precise identification of changes in reflectance. It's a versatile and compact sensor that offers high performance and easy integration into your projects.