OldSteve:
Noobian, if I were you I'd buy one of those cheap Chinese key fob sets to wirelessly control the LED, AND some Arduinos to play with.
My key fobs w/ receiver only cost AU$4.79 each, here:- 433MHz Key Fob Set
Well worth the cost, but beware - some other sellers appear to include the receiver, but they don't. I discovered this the hard way with two other sellers.
but the problem is that they use rubber push button switches which i'm not very fond of....since i intend to connect the transmitter to a float switch.
Finally I decided to do this
coz the wireless doorbell costs half as much as the keyfob available here and also doesnt have a rubber membrane thing button.
Noobian:
Finally I decided to do this https://www.youtube.com/watch?v=ElXguFy1zzQ
coz the wireless doorbell costs half as much as the keyfob available here and also doesnt have a rubber membrane thing button.
I didn't watch the whole video, it's 15 minutes long, so I stopped after a minute.
Be wary of exactly which wireless doorbell unit you buy. Many do not have a settable address code, and just send a 433MHz carrier. These are very unreliable and false-trigger regularly.
I bought some very cheap ones and ended up throwing them away because they were worthless.
A good cheap option is to buy very basic 433MHz TX and RX modules, (extremely cheap on eBay), then also buy PT2262 and PT2272 remote control encoder and decoder chips to connect to them. These chips are the same as those used in the key fob units, and allow up to 312 potential codes, depending on the PT2272 version, which virtually eliminates interference from other 433MHz noise.
You might have trouble getting the PT2262 and PT2272 chips, though. I bought mine from UTSource in China. Definitely worth a search though. (Just another option.)
