I recently bought a phototransistor emitter and detector from radio shack: http://www.radioshack.com/sm-matched-infrared-emitter-and-phototransistor-detector--pi-2049723.html. It didn't come with much instruction but i thought i could simply put a voltage accross the emitter and the detector would simply detect it and induce a voltage accross its leads. However, when i actualy do this it doesn't seem to work. I made sure i put the proper polarity accross the anode and cathode of the emitter but nothing happens. .... Any ideas? Does anyone have information or recomendation on IR remote controlls? This is not for any specific project, but i just want to learn how to use IR. I have tryed looking this up online but suprisingly i have not found much good information. If someone could direct me to a good resource i would appreciate it.