Hi,
Can you use off the shelf RF remotes typically found in car alarms that have adjustable frequencies between 255-500MHz with the following?
If so, how'd you go about it?
Thx
Those are basic 433 or 315 MHz transmitter/receiver pairs. They use On-Off Keying (OOK): the transmitter sends out carrier when the input is HIGH. The receiver send out HIGH when it detect carrier. To send messages with them you have to modulate the carrier (turn it on and off in a pattern representing the data) and decode the data you get from the receiver. The old VirtualWire library was used for that but has been superseded by the RadioHead library:
http://www.airspayce.com/mikem/arduino/RadioHead/
If you have a car remote you want to receive you will need to determine the frequency it uses and buy a matching receiver. Then you have to analyze the patterns you get from it to decode the buttons.
Hello from a newbie
I wish to turn on some devices thanks to this remote device that, you can find in all these remote keys for cars...
I have the transmitter (zk1pc) and its receiver working with 12 V.
I am trying to read the signal but with no success
Which program and library should I use?
All I want is to get the prompt whenever i press on the remote (on and off are with the same button)
The RadioHead has so many different examples that I am getting lost.
Thanks