My keyless entry project

And it's just connected to the OBD Port?!
Looks pretty simple, cool!

If I had time, I would try this on my own

Hi Gwe89,

that's awesome! How do you manage the triggering for searching after the device? Originally at keyless entry there are microswitches which trigger the special unlocking mechanism (at least they wake up the control unit for that procedure an it then is checking for permission etc.) for the door you try to open and I think the others are opened with the usual motors.

Not having that microswitch in the door means that you in theory have to look periodically. Obviously the period determines how much power you will need between two openings.

Regards,

Tycho

Hi Gwe89,

thats clear but does not answer my question about power management in locked state.

How often does the Arduino try to ping the car? Do you extend the period when the time since the last lock gets longer? And then the questions will be which limit is acceptable (depending on the range of the wireless) and which tradeoff between waiting and power saving is the best?

Ford is powering down after a defined time so the keyless opening will take a little bit longer. If the range of the wireless is 10 meters, you might think about an interval of 5 seconds. But this still takes power. Not too much by bluetooth but you should think about that. 10 meters might not be practicable if your garage is integrated to your house or you have a carport next to it as the car might stay unlocked with forces you to check more often for your watch and to lower the wireless range (if possible).

Because of that the original locks do have a microswitch which definiately will tell the control unit that somebody wants to access the car. This saves power and the life of the actuators as they do not unlock when you are just passing your car but don't want to go inside. You should think about some triggering mechanism for the unlocking procedure.

As I said, project is very interesting, but still in the beginning .

Regards,

Tycho

Call me old-fashioned, but for me the original keyless-system in the MK4 is perfect. It opens on pulling the door handle if the key is in range, and - it reacts very fast. For me, the MK4 was the first one having Keyless-Entry, so i expected all systems to work this way. But as i drove a new Focus or Mondeo i found that those cars have an noticeable delay between pulling the handle and unlocking the doors. That's totally annoying if you pull, nothing happens, then release and the door opens.

Just my two cent - and not to disrespect your work, it's a nice project, even if i personally would ever prefer the genuine variant.

Hi,

who will steal a 10 year old Mondeo Mk4?

I have spent 300€ + 80 for the driver door wiring harness (have lost the auction ) . If you are mixing between the different door lock actuators then you can build this pretty cheap as you can combine double lock with keyless and so on.

Regards,

Tycho