QTR-L-1RC Reflectance Sensor [2-Pack], Pololu Robotics and Electronics

The Pololu QTR-L-1RC reflectance sensor carries a right-angle infrared LED and a right-angle phototransistor, both pointing toward the front edge of the board. The phototransistor uses a capacitor discharge circuit that allows a digital I/O line on a microcontroller to take an analog reading of reflected IR by measuring the discharge time of the capacitor. Shorter capacitor discharge time is an indication of greater reflection. The LED current-limiting resistor is set to deliver approximately 17 mA to the LED when VIN is 5 V. The current requirement can be met by some microcontroller I/O lines, allowing the sensor to be powered up and down through an I/O line to conserve power. This sensor was designed to be used with the board perpendicular to the surface being sensed, and narrow-angle lenses built into the infrared LED and phototransistor packages allow it to be effective to a range of about 1 (25 mm). Because of its small size, multiple units can easily be arranged to fit various applications such as line sensing and proximity/edge detection. The QTR-L-1RC is sold in packs of two units. Specifications: Dimensions: 0.3 ? 0.35 ? 0.12 (without optional header pins installed) Operating voltage: 5.0 V Supply current: 17 mA Output format: digital I/O-compatible signal that can be read as a timed high pulse Optimal sensing distance: 0.125 to 0.25 (3 mm to 6 mm) Maximum recommended sensing distance: 1 (25 mm) Weight without header pins: 0.006 oz (0.2 g)

QTR-L-1RC Reflectance Sensor [2-Pack], Pololu Robotics and Electronics

Параметры QTR-L-1RC Reflectance Sensor [2-Pack]

НаименованиеQTR-L-1RC Reflectance Sensor [2-Pack]
ПроизводительPololu Robotics and Electronics (POLOLU)

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QTR-L-1RC Reflectance Sensor [2-Pack], Pololu Robotics and Electronics QTR-L-1RC Reflectance Sensor [2-Pack], Pololu Robotics and Electronics
Цена (включая НДС)
260,50 руб
от 5 шт. 248,50 руб
от 10 шт. 236,50 руб
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