I made my own immobilizer which is activated by an encrypted LORA chip.
The bottom line is a receiver/main board with relay output, installed in the car, and a small transmitter/remote, in my pocket.
The communication is a 128 bits encryption, a military standard.
The end of this device is a contact normal open of a relay. In my car, I put it on the ignition wire.
I cut the wire which goes from the fuse to the starter solenoid and inserted the relay contacts.
If I press the remote, the relay will close(and stay close until I shut off the power), and I can start the engine. When the relay is open, the starter does not turn.
I would like to know if it is anything else, that I can cut and put in the relay.
A thief, if he gets time will easily find the relay connection.
When a new antitheft device hit the market, they will buy it, study it and they can bypass it easily. My goal is not only to put in the start system.
For example, on my 2016 MDX, if the door opens, the car automatically moves to park and I cannot drive it. So, if I put on some door sensing circuit, the engine starts, but they cannot drive. But in this case, will be harder to find out where it is the cut on the wire.
I am looking for any suggestions to insert the system that is hard to find. My remote has 4 buttons, and I can put 4 small relays, so the life of that stupid thief will be literally miserable.
Please help and come up with your solutions. I am an electronic engineer and I can modify/update my system to any suggestion.
The only place I will not put it is the fuel pump.
Admitting that I am the owner of the car, start the car and drive. If anything goes wrong with the system, and the relay opens while I am in heavy traffic/high speed on the highway, the car will stop and make a huge accident. The fuel pump circuit is a NO NO.
Thank you very much
The bottom line is a receiver/main board with relay output, installed in the car, and a small transmitter/remote, in my pocket.
The communication is a 128 bits encryption, a military standard.
The end of this device is a contact normal open of a relay. In my car, I put it on the ignition wire.
I cut the wire which goes from the fuse to the starter solenoid and inserted the relay contacts.
If I press the remote, the relay will close(and stay close until I shut off the power), and I can start the engine. When the relay is open, the starter does not turn.
I would like to know if it is anything else, that I can cut and put in the relay.
A thief, if he gets time will easily find the relay connection.
When a new antitheft device hit the market, they will buy it, study it and they can bypass it easily. My goal is not only to put in the start system.
For example, on my 2016 MDX, if the door opens, the car automatically moves to park and I cannot drive it. So, if I put on some door sensing circuit, the engine starts, but they cannot drive. But in this case, will be harder to find out where it is the cut on the wire.
I am looking for any suggestions to insert the system that is hard to find. My remote has 4 buttons, and I can put 4 small relays, so the life of that stupid thief will be literally miserable.
Please help and come up with your solutions. I am an electronic engineer and I can modify/update my system to any suggestion.
The only place I will not put it is the fuel pump.
Admitting that I am the owner of the car, start the car and drive. If anything goes wrong with the system, and the relay opens while I am in heavy traffic/high speed on the highway, the car will stop and make a huge accident. The fuel pump circuit is a NO NO.
Thank you very much