Side-looking Infrared Emitters and IR Detectors. These simple
devices operate at 940nm and work well for generic IR systems including
remote control and touch-less object sensing. Using a simple ADC on any
microcontroller will allow variable readings to be collected from the
detector. The emitter LTE-302 is driven up to 50mA with a current limiting
resistor as with any LED device. The detect LTR-301 is a NPN transistor that is
biased by incoming IR light.
Sold as a pair, with one Emitter and one Detector.