Wireless transmitter, like a car's keyless entry.

Forum 2005-2010 (read only) Hardware Interfacing
#1

Hey guys,

I'm looking for a small transmitter, size and shape similar to a car's keyless entry, that I can use with the Arduino. I'm looking for something with 3 or 4 buttons. The receiver end doesn't really need to do anything special, momentarily close a relay or anything, just so that my Arduino can sense it.

I'm not looking for a full blown data module like the XBee, but I can't find anything like what I want. I know they have to exist.

The only real important thing is that the transmitter is small, has three seperate buttons, and hopefully won't be triggered by interference.

Thanks guys.

#2

Looks like I found something that will work for me:

http://www.seco-larm.com/RF4B3.htm

Four channel relay board with NO, NC, and Common positions. A couple different size transmitter’s too.

Thanks for listening.

#3

Ok, I eventually found a reseller for that board above, and they wanted $250!

This one can be had as a solder it yourself kit for $55: http://www.electronickits.com/kit/complete/elec/ck1616.htm (less pretty transmitter, though)

#4

I've seen this one used:

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=AM110C3-315-ND

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=AMHIRK-315AR3-ND

-j

#5

Check these guys out...they're a Chinese Ebay seller but I just bought from them last month and got one of the RF remote with key fob like you're describing and it works great for me.

http://myworld.ebay.com/e-madeinchn/

#6

I haven't bought this particular item, but I've been a satisfied customer of Goldmine for many years:

http://www.goldmine-elec-products.com/prodinfo.asp?number=G16544

Ran

#7