Remote Central Locking

[Cheef]

I have a "serpi star" bog standard alarm on my 3 door. It has bonnet boot and door sensors. Thats all it has. I want to make further use of it by installing locking motors to the doors. Are there any ideas on how to tap into the old alarm?

 

[Cheef]

Can any tech guru's chime in? I have searched here and the net.

 

[zanes]

Do you mean interface the motors to the alarm (ie, when alarm is deactivated, the doors unlock automatically)?

 

[Cheef]

Dude!!!!! Exactly. I was thinking of splicing into the signal wires for arm and disarm, then lead them to a single relay and finally split off to the 2 doors.

 

[zanes]

I suspect that arm/disarm would only be high (ie switched "on") for a very short period of time. It would be possible to use this to activate a motor with some jigger-pokery, but I suspect it might be easier for you to sell the alarm, and buy a cheap one with the central locking as standard.
It'll be hard to say any more without a schematic.

 

[Cheef]

I understand, but you have to realise im stingy! I have a decent grasp of electronics so i should be able to wire some door motors in. I just want to make a real use for the ####e thats already installed.