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Old 04-14-2014, 11:39 PM
Persian Persian is offline
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Quote:
Originally Posted by TerminatorX5 View Post
interesting project, i hereby subscribe to see the progress...

couple pointers...

wi-fi camera - i would suggest a hardwired camera, as wireless solutions unfortunately do not always work as advertised (been there, done that)..

The car is not in "transport" mode, as you are driving it... or, is it? elaborate on this point, i'd like to learn more about this statement... maybe i need to do something to mine too...

you need to check the power requirements for your phone - case in point, my HTC was shipped with a 1 A (1000mA) power supply. withing first few days I got a message indicating that the phone was using more current than the charger was supplying...
I got myself a 2A (2000mA) charger, the situation improved slightly, as i did not receive that nasty message as often but nevertheless, 2A was not enough... finally, i hardwired a 3A (3000mA) supply and was able to use Tune-in and Waze simultaneously, without draining but actually charging the phone while using it in the cradle... just a heads up on the power supply for the phone...

if you are not using the factory BT module (ULF), and can get rid off the possibly installed TCU, you can locate the 54-pin connector in the trunk and rig up a set up when the radio mutes for a phone call - there is a pin that needs to be grounded inside that 54-pin connector, and when it is grounded, the radio mutes, CD pauses, and the audio comes from the car speakers... requires venturing into the pinouts - i don't remember off the top of my head, but i had done this about 10-15 years ago to my E39 (same hardware as E53)

I am not sure which power you are referring to, that is always on - the cigarette lighters are wired directly to battery, via couple sets of fuses... there are ignition hot circuits, and i personally use wake-on-LAN setup, when the direct power from the battery is controlled via relay by a circuit that is alive when the car is awake...

have you seen some of my attempts at resolving the outdatedness (it is not a real word!!!) of the E53 electronics?... lol...
Yes, scratch the wifi camera. You make a solid point! Now, if I scratch this, the phone isn't such a big problem.

But given that I've forgone this, I will need to feed AV directly to the tablet.

I believe I've found the solution to that... (OMG!)

So there exists a device called easycap (or something like that, I have one around somewhere). It takes component video and gives it to your computer through USB. Which is cool.

Now, from that, I will need a tablet which can host USB. The problem here is, of course, that most tablets can't do this.

The ones that are capable through OTG, but they also charge through USB, thus rendering them useless for our application. However, I will look into the Surface tomorrow.

Finally (sadly), I believe the solution will come down to a Windows tablet so that it can take in the USB host, charge, and give 3.5mm audio out, while handling bluetooth, and GPS.

The bonus here (if we can call it that) is that if I can find a surface which can run full windows (not RT), the bluetooth solution to stream audio is easy and I save time there.

The other bonus is that with the video cap, I can introduce side cameras later.

As for transport mode, I'm sure my car was super low on battery and it went into it. I've lost central locking as a result, lights don't come on when doors open, etc. I will update the thread after I'm done some errands this evening.


TL;DR: Change to wired cam, use windows tablet + easycap


EDIT: DISREGARD THAT. It can be done with a Dell Venue 8 pro. BOOYAH!!
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Last edited by Persian; 04-15-2014 at 12:14 AM.
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