Auto turn on With ignition

fastblatt · Occasional Visitor Joined: Aug 04, 2008 Posts: 5

Hi. Does anyone know if it is possible to hardwire a tomtom one v2 to a cars ignition so that the unit switches on with the ignition and off when the car is switched off?

lbendlin · Posted: Mon Aug 04, 2008 4:22 pm Post subject:

yeah, those were the days. That's a feature that was removed by TomTom after the problems with the 910 mount.
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fastblatt · Occasional Visitor Joined: Aug 04, 2008 Posts: 5

OK. But has anyone handy with a soldering iron managed to get over this since then?

mikealder · Posted: Mon Aug 04, 2008 5:32 pm Post subject:

No, it is not possible AFAIK - Mike

Andy_P · Posted: Mon Aug 04, 2008 6:28 pm Post subject:

Well, if you really wanted to, you could make a circuit that looked at the ignition switch and closed a relay for three seconds. The contacts of that could be wired directly across the TomTom's power switch.
Not for the faint-hearted though.

BodgerBaz · Posted: Tue Aug 05, 2008 7:09 am Post subject:

I use the good old fashioned GO 510/710 and it will turn on with the ignition but stays on when the ignition is turned off. Not too much of a problem as I need to remove it from the windscreen when I get out anyway.

253 · Posted: Tue Aug 05, 2008 9:15 am Post subject:

MaFt · Posted: Tue Aug 05, 2008 9:43 am Post subject:

as lutz said though, they released a rubbish mount for the 910 whereby the connections would come apart far to easily so you would constantly get the 10 second count-down.

great that, instead of dealing with the problem (rubbish mount) they just hid the effects of it...

MaFt

Oldboy · Posted: Tue Aug 05, 2008 11:27 am Post subject:

BodgerBaz · Posted: Wed Aug 06, 2008 7:02 am Post subject:

tenorplayer · Regular Visitor Joined: Aug 20, 2006 Posts: 69

my 910 mount used to switch on and off when hitting bumps etc ( a common fault I believe) but TT sent me an improved model mount and brill so far for nigh on 2 years (give or take )

fastblatt · Occasional Visitor Joined: Aug 04, 2008 Posts: 5

I saw the bit about the battery preferences and thought that would help with what I want to do but I don't think my ONE V2 has it. Well.... I can't find it.

BodgerBaz · Posted: Thu Aug 07, 2008 7:26 am Post subject:

mikewall · Posted: Thu Aug 07, 2008 9:25 am Post subject:

mikealder · Posted: Thu Aug 07, 2008 9:31 am Post subject:

A modification like this could be done, but unless you are used to working with surface mount electronics and use of very fine tip soldering irons then leave this idea well alone.

Another thing to consider is the duration the button needs to be pressed, a couple of seconds is the norm, 7,481 needed a five second press and on some newer units the on/ off button doubles as the reset button (when you press it for 15 seconds) - so make sure whatever you wire in for the auto on/ off can accommodate the above - Mike

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