QTR-1RC (Pack of 2)

QTR-1RC is a reflection sensor with a single infrared LED and a phototransistor pair. The onboard phototransistor uses a capacitor discharge circuit to calculate the reflected IR analog values by measuring the discharge time of the capacitor, using the digital input-output line on the microcontroller. Faster capacitor discharge times indicate more reflection.

Specifications:

• Operating voltage: 5VDC
• • Supply current: 25mA
• • Digital I/O compatible
• • Optimal detection distance: 0.125” (3mm)
• • Dimensions: 7.62x 12.7x 2.54 mm