On Tue, 15 Apr 2008 18:38:04 +0100, "Mr Sandman" wrote:

the problem is now that if
someone opens the back door with a fob, the front door also unlocks! and
vice versa. I was thinking about using diodes to try to get round this
problem. I'm not sure if I have explained the set up very well..so ask away
if you have any questions!

If it's a DC sensing circuit, then yes a diode in one leg of each branch will do
the trick. If it doesn't work at all one way, reverse it.

If it's AC sensing it wouldn't make any difference. I'd guess and you'd have to
go the relay route.

Be careful though, it's might be mains voltage !!!! Get something sturdy, 1A
rated at 400v. They only cost pence anyway.

Andy