Pololu QTR-HD-05RC Reflectance Sensor Array: 5-Channel, 4mm Pitch, RC Output

The Pololu QTR-HD-05RC Reflectance Sensor Array is a compact and efficient tool for precise identification of reflectance changes, such as line detection. This 5-channel sensor array with a 4mm pitch and RC digital output, measures 21.0mm by 20.0mm. It operates optimally within a range of 5mm and requires a maximum current of 30mA for LED and 93mA for the board. The array is equipped with IR LED/phototransistor pairs and can function effectively within a voltage range of 2.9V to 5.5V. A unique feature of this sensor array is the dimmable brightness control that operates independently of the supply voltage. It also offers separate controls for the odd and even emitters.One of the key benefits of this sensor array is the high contrast it provides between light and dark readings, particularly when the object is closer. However, it is also capable of detecting high-reflectance objects up to approximately 40mm. This version of the reflectance sensor array features traditional-style QTR sensors without lenses, making it a versatile tool for a variety of applications.Whether you're working on a robotics project, a line-following vehicle, or any other application that requires precise detection of changes in reflectance, the Pololu QTR-HD-05RC Reflectance Sensor Array is an excellent choice. Its compact size, flexibility, and high precision make it a reliable and efficient solution for your needs.