Hello everyone,
I am looking to get some info on how I can connect to my car's locking system so that I could install an RFID card reader that, when scanned with a valid card, would un-lock the car.
In my mind, it would work like this. An onboard micro-controller would process the signal from the RFID card reader, and if the card is authorized, the micro-controller would energize/close the un-lock side of the relay and the doors would unlock.
Is it as simple as just finding the lock switch's relay and splicing some wires to the proper terminals? One thing I have been wondering about is the power needed to un-lock the doors. On most cars, is this a 12-volt relay? Or is the voltage needed going to be different across makes and models?
Thanks in advance for the assistance.
Smokes
I am looking to get some info on how I can connect to my car's locking system so that I could install an RFID card reader that, when scanned with a valid card, would un-lock the car.
In my mind, it would work like this. An onboard micro-controller would process the signal from the RFID card reader, and if the card is authorized, the micro-controller would energize/close the un-lock side of the relay and the doors would unlock.
Is it as simple as just finding the lock switch's relay and splicing some wires to the proper terminals? One thing I have been wondering about is the power needed to un-lock the doors. On most cars, is this a 12-volt relay? Or is the voltage needed going to be different across makes and models?
Thanks in advance for the assistance.
Smokes