Hello, I recently got some IR transmitter LED's and reciever LED with the ide of using them to make somewhat cheap remote control. whern I started to build it, I realized that I didnt know much about what was going on and how I should put it together, so I experimented with it a lot to figure out what was happening where, and I have come to the conclusion that the transmitter LED is just like a normal LED, just that it emmits IR waved insted of visible light, and that the reciever "LED" (it isnt really a light emmiting diode, but it looks like one, so I will continue to use LED) works something like a switch, when it recived a wave within the range of frequencies it can detect, it opens up the switch and allows current to pass through. Am I correct so far? if i am not, then please correct me. now, I have also noticed that the light from the light bulb in the lamp above it also triggers it to open the switch, how can I avoid this? it seems that wherever I go, the light sets it off, but for instance, in the TV remote control reciever, it isnt as effected by light, does it use something diferent, or does it filter out something? how can I make it so only when I send my signal, it will activate, and not just background IR that it picks up? perhaps the TV's reciever is ust like mine, in that is is always being triggered, but it can tell the diference between the background "noise" and the signal sent by the remote.