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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 is driven up to 50mA with a current limiting resistor as with any LED device. The detect is a NPN transistor that is biased by incoming IR light.
- IR Schematic - Basic object detection schematic
- Robot Room - Excellent website with lots of goodies
- Video Tutorial
Sold as a pair, with one Emitter and one Detector.
SparkFun Infrared Emitters and Detectors