Push Button Start with Passive Device Key wanted

[matty b]

Matty, I'm very interested. I've been planning on this type of start system for months for my current build. A 65 El Camino on a Schwartz Chassis with an LS2/T56. I will not have door locks involved and my setup will be fairly simple. I have already pulled together most of the parts. Needless to say I've been following this post from the beginning.
How difficult would it be to have a redundent backup, so if the RFID fails, you can still fire the engine?



thanks for your efforts.
Mike Holleman

well the plan would be to use the starter interupt built in to the security system as the way to kill power to the ignition switch. A standard arlarm woud have the starter leg open when armed so there is no continuity through it. USing that circuit to block power to the ignition switch would provide security. The RFID alarm would operate the same way although instead of pressing a disarm button you just walk up to the car. In order to bypass it you would need to by pass the starter interupt. This could be done with an on off switch spliced in between the in and out wires and left off when you want the alarm to do the security but could be bypassed by turning the switch on. If you did that I would hide the switch in a very concealed location like the trunk or engine compartement. Theives look for hidden switches and believe me they will look under the dash or under the seat. Ive done some very creative work inorder to hide the kill switch. Best one was to install a push button in place of the glovebox switch. When open it looked just like the normal switch but if you pressed it the car would die. thats all you can do to bypass it in the even of a failure. Thing is that most alarms dont fail without being hooked up wrong or you lose the fob (which is very common).

[jjump59]

I'm real interested in a system that will work just like the new vettes. walk up and the doors unlock, push the button and it starts push it again and it shuts off, walk away and the doors lock. if i understand you correctly that's exactly what your planning and i'm all over it! just let me know when it's ready to ship! i've been watching the thread since it started and it's hard for me to understand the how and whys (electric IQ of 5) but you sound like you've got it figured out. Thanks, J.J

[matty b]

I should have something that does just that fairly soon, looks like it should be pretty popular too.

[jlmccuan]

A good way to hide a switch is to place it under the carpet behind the brake pedal. If you want momentary use an old Chevy floor mounted starter switch. For push on/push off a regular floor dimmer switch.

[DarkoNova]

Matty, I'm interested in one of your kits. I'd love to have an RFID setup where walking up to the car unlocks it and turns the dome light on, and walking away locks the doors.

Matt

[matty b]

its not a kit yet, I have to make a test a few to make sure this is something that isnt gonna leave you stranded if you know what I mean. At the moment I have a breadboarded version and a PCB layout. In the coming days Ill have info and then figure out what it will take to make this available.

[LSX69]

Someone Posted This Link In Lateral-g And I Have Been Following It Since. So My First Post Over Here Is To Say Im In!! When You Have A Kit Made Let Me Know!

[LSX69]

Oops, I Mean Second Post.

[Tom 72RS/SS]

Needless to say, alot of us are watching and waiting. Take as long as you need to get it right and I'll be one of the first to jump on it.
Now I have to look into adding power locks to take advantage of all the features...ahh what fun!

[Fuelie Nova]

Man I just found this thread. I have a chance to pickup a push button setup out of an 08 Toyota Camary next week. I want to try and disect it to see if I can figure it out. I like there switch, it says "press to start"
There thought is... if you are in the proximity with the fob, press the button (momentary) and it is on ACC. Press again and it turns off. If you want to start the engine, press the brake pedal and be in range and the engine goes to the Start pos for a specified time then automatically goes to the Run pos. It only takes a momentary push and then latches in for start.

I might try and work on a circuit to simulate the above and then use an output off my XFI to tell it when it is running which would drop it back to the run position.
Tg

[matty b]

well got 2 boards made, gotta drill em and assemble them tomorrow then get to test it out. Things are definitely moving along nicely

[matty b]

Man I just found this thread. I have a chance to pickup a push button setup out of an 08 Toyota Camary next week. I want to try and disect it to see if I can figure it out. I like there switch, it says "press to start"
There thought is... if you are in the proximity with the fob, press the button (momentary) and it is on ACC. Press again and it turns off. If you want to start the engine, press the brake pedal and be in range and the engine goes to the Start pos for a specified time then automatically goes to the Run pos. It only takes a momentary push and then latches in for start.

I might try and work on a circuit to simulate the above and then use an output off my XFI to tell it when it is running which would drop it back to the run position.
Tg

very easy like that, just gotta remember that the brake cannot be pressed when turning the car off or the starter will engage and nothing else will happen. The latching relay is not shown but the lead that goes to the S teminal on it is marked as LATCH TRIGGER. The relays shown are normal 5 pin bosch relays. Im tired and Im not sure if the push button goes to the horizontal terminal or the vertical terminal at the bottom opposite it. If you make this and it doesnt work switch the two wires and it should work fine. An rpm trigger isnt really necessary and it would just complicate things. If you dont wanna turn the car off without pressing the brake set the e brake instead or just put it in park. If you want to be able to press the brake when you turn the car off you are asking for a quite a bit more complicated setup and at that point youd be better of with the module Im building.

[matty b]

UPDATE Ok I got the first board put together and it works perfectly. Im gonna make probably 5 to start. This is just the keyless ignition switch none of the rfid stuff with it. If you want that I can set that up as well but it will be a bit more. If you are interested in one PM me and we can talk about the details.

[monza]

PM sent.

[DarkoNova]

PM sent.

What he said.

Matt

[matty b]

thanks you guys for grabbing these up, Im swamped by the interest I didnt expect it to be quite like this

[ZoomieFoosh]

I also emailed the guys over at Digital Guard Dawg and this is what they said about their product. I guess it doesn't do all the door locking/unlocking and it skips out on the step of one push powering up the acc then the next starting the car.

We have a great little product that might just do the trick. It's our DGD-ADS. "Keyless" Push Button Start system. It provides push button start operation for vehicles that is securely controlled by one of our RFID "Dawg Tags" It's quite simple to install and works great. When you approach to within 10 feet of the vehicle the system passively reads the Dawg Tag code,(one in 6 billion), No buttons to push, just walk up. If a valid Tag is seen, the systems push button will allow the vehicle to be started. The starter cranks upon full depress of the button and runs when released. The button also has a LED ring on the outer edge that lights up while the vehicle is running. Another push and the engine stops. There's a 20 sec. safety feature so the engine can always quickly be restarted if you were to stall. The system automatically arms when you walk out of range, no one can start your vehicle without the Dawg tag present. System has manual and automatic operating modes. I've included a link the product page on our site: http://www.digitalguarddog.com/mm5/m...ry_Code=a20000

[viper11]

also emailed the guys over at Digital Guard Dawg and this is what they said about their product. I guess it doesn't do all the door locking/unlocking and it skips out on the step of one push powering up the acc then the next starting the car.

this can probanly be done easily with a relay triggered by the dawg sensor output
try this alarm instead, http://cgi.ebay.com/NEW-K9-SOMBRA-AU...QQcmdZViewItem it is only $33 and does everthing but the 'acc' feature (unlocks doors, enables /disables starter) the ignition/acc circuit can be handled with extra relays
jason

[matty b]

The rfid is the easy part coming up with a way to make one button act like a three-way switch is entirely different. The digital gaurd dawg setup is for motorcycles that has an ignition button and a start button and it bypasses the key cylinder that normal turns the bike on. It wont do the one button start though and thats what everyone is looking to do. If you want simple I drew out a diagram up the page that will do an ignition on and start and would be very easy to do. My module on the other hand works exactly like an ignition switch would with an acc, ign and start mode with 1 switch and works independently of all other switches in the car. Also my box is the same price as that digital gaurd dog unit approximately and has rfid and all the wiring setup to drop into a car very simple clean and easy to do for a diy'er. That rfid alarm would work with my setup also as will any alarm. The module switched on by through the starter kill circuit so instead of just disabling the starter it disables the whole ignition switch.

[Tom 72RS/SS]

Question: If I install an aftermarket power door lock kit in my 72, will the RFID function in "your kit" work along with the push to start, etc.?