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Posted: Sat Jun 25, 2016 3:07 pm |
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Joined: Feb 22, 2010 Posts: 213
Trade Rating: 0
Location: scotland
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Basically i need a usb power supply to my tablet to be active only when the car ignition is started, not overnight.
i don't mind if its from one click turn or when the engine is running only, as long as the power is off while I'm not using the car.
How hard would this be?
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Posted: Sat Jun 25, 2016 10:20 pm |
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Joined: Jun 20, 2012 Posts: 1171
Trade Rating: +1
Location: West Country
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Posted: Mon Jun 27, 2016 7:02 am |
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Joined: Feb 08, 2010 Posts: 2369
Trade Rating: +15
Location: Gloucestershire, UK
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CAUTION: If you wire direct from the battery (like I have) you should consider using something that employs a delayed start, and offers surge protection otherwise you risk frying your table during crank.
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Posted: Fri Jul 01, 2016 11:07 pm |
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Joined: Feb 22, 2010 Posts: 213
Trade Rating: 0
Location: scotland
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Guys, cant i just go under cigarette lighter in the middle and splice off a wire from + and from - and go straight to a mini usb? ...
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Posted: Sat Jul 02, 2016 3:01 pm |
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Joined: Feb 22, 2010 Posts: 213
Trade Rating: 0
Location: scotland
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bloodmeal wrote: |
Guys, cant i just go under cigarette lighter in the middle and splice off a wire from + and from - and go straight to a mini usb? ... |
nobody ?
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Posted: Sat Jul 02, 2016 3:07 pm |
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Joined: Aug 11, 2015 Posts: 175
Trade Rating: 0
Location: Tewkesbury
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Is the car pre or MUX?
You can do but the cig lighter is 12v DC. You need 5V 1A/2.1A. You can do this if you're any good at soldering with a basic voltage regulator. If you put 12v into the tablet you WILL fry it immediately.
Option B is buy a mini USB cig lighter charger and smash up the plug end of it. Circuitry in there will do exactly the same job. You'll just have to frankenstein it together. That's the safest option if you're not confident in component wiring. It is also the messiest looking solution IMO.
Hope that helps
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| My cars:
206 Urban 1.4 8v 3dr '56 - China Blue - 70k Miles - Climate control retrofit, cruise control retrofit - Dead (Breaking)
206 GLX 1.4 8v 3dr '03 - 100k Miles - Obsidian Black - Black masked headlights + front fogs, Faster sunroof, Colour matched exterior trim - SOLD
206 2.0 GTI 138 '03 - 58k Miles - Onyx Black - 17" 180 Alloys - Current
206 2.0 GTi 138 '03 - 120k Miles - China Blue - New Track Toy (ON THE WAY) | |
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Posted: Sat Jul 02, 2016 3:10 pm |
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Joined: Feb 22, 2010 Posts: 213
Trade Rating: 0
Location: scotland
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FrankAteMyName wrote: |
Is the car pre or MUX?
You can do but the cig lighter is 12v DC. You need 5V 1A/2.1A. You can do this if you're any good at soldering with a basic voltage regulator. If you put 12v into the tablet you WILL fry it immediately.
Option B is buy a mini USB cig lighter charger and smash up the plug end of it. Circuitry in there will do exactly the same job. You'll just have to frankenstein it together. That's the safest option if you're not confident in component wiring. It is also the messiest looking solution IMO.
Hope that helps |
THANKS. thats exactly the advice needed.
i dont mind to break open an old cig lighter charger, but where do i connect it to the car? i dont want it to "take up" my cig lighter if i can avoid it. I was hoping to have everything concealed.
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Posted: Sat Jul 02, 2016 5:10 pm |
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Joined: Apr 14, 2010 Posts: 713
Trade Rating: +2
Location: Gothenburg, Sweden
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bloodmeal wrote: |
i dont mind to break open an old cig lighter charger, but where do i connect it to the car? i dont want it to "take up" my cig lighter if i can avoid it. I was hoping to have everything concealed. |
You can tap into the wire[s] going to the cig.lighter (the negative can be grounded essentially anywhere...) IIRC there are 3 wires: +12 for heating the lighter and this the one you want to connect to, +12 for the illumination, and ground.
. I've wired in a little distribution block to which I've then connected footwell LED's as well as the guts of a USB supply for a dash cam (removed from the clunky cig. adapter plug and stuffed into a plastic electronics project box.
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| Silvermetallic 2004 206 RC | |
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Posted: Sun Jul 03, 2016 12:00 am |
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Joined: Feb 22, 2010 Posts: 213
Trade Rating: 0
Location: scotland
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mtempsch wrote: |
bloodmeal wrote: |
i dont mind to break open an old cig lighter charger, but where do i connect it to the car? i dont want it to "take up" my cig lighter if i can avoid it. I was hoping to have everything concealed. |
You can tap into the wire[s] going to the cig.lighter (the negative can be grounded essentially anywhere...) IIRC there are 3 wires: +12 for heating the lighter and this the one you want to connect to, +12 for the illumination, and ground.
. I've wired in a little distribution block to which I've then connected footwell LED's as well as the guts of a USB supply for a dash cam (removed from the clunky cig. adapter plug and stuffed into a plastic electronics project box. |
Thanks, I wired my footwell neons from the interior light bulb holder and was hoping that this usb would be just as easy.
is there a tutorial around for dismantling a cig lighter charger and splicing it in? (which wires are which etc)
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Posted: Sun Jul 03, 2016 6:08 am |
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Joined: Apr 14, 2010 Posts: 713
Trade Rating: +2
Location: Gothenburg, Sweden
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bloodmeal wrote: |
Thanks, I wired my footwell neons from the interior light bulb holder and was hoping that this usb would be just as easy.
is there a tutorial around for dismantling a cig lighter charger and splicing it in? (which wires are which etc) |
Truly trivial - usually just held together with a screw or two, or even just snapped together. If unlucky they've used glue and you might need more brute force, snips or a dremel...
The wire that connects to the bottom centre pin is +12, the one/two pieces of springy metal on the side is ground.
See image for an example: www.dropbox.com/s/jl6h...dapter.jpg
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| Silvermetallic 2004 206 RC | |
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