[DISCUSSION] LattePanda in Car

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lextar
Posts: 9
Joined: Tue Jun 07, 2016 9:02 pm

Sun Jun 12, 2016 5:51 pm

JimDrew wrote:If you update the BIOS with the "auto-boot" version you could power the LP from the ignition source and it would boot when you turned the key to accessory/run. However, you would need to be careful about a brown-out condition while the starter was engaged. If you turned the key to accessory position for a few seconds, the LP would start to boot and when you engaged the starter it could interrupt the boot sequence which could corrupt Windows. You would probably need a big cap on the 12v line to the LP to prevent this problem.
Where can I find the BIOS update?

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schluej
Posts: 75
Joined: Sun May 01, 2016 7:19 pm

Mon Jun 13, 2016 3:44 am

lextar wrote:
JimDrew wrote:If you update the BIOS with the "auto-boot" version you could power the LP from the ignition source and it would boot when you turned the key to accessory/run. However, you would need to be careful about a brown-out condition while the starter was engaged. If you turned the key to accessory position for a few seconds, the LP would start to boot and when you engaged the starter it could interrupt the boot sequence which could corrupt Windows. You would probably need a big cap on the 12v line to the LP to prevent this problem.
Where can I find the BIOS update?
==>> https://github.com/LattePandaTeam/Latte ... 0-Software
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lextar
Posts: 9
Joined: Tue Jun 07, 2016 9:02 pm

Tue Jun 14, 2016 8:59 am

I found this device here:

http://www.mini-box.com/DCDC-USB?sc=8&category=981

The DCDC-USB can be programmed to output 5V but it can't send shutdown signals via USB. If the mentioned board has On/Off pins you can use the Automotive mode of the DCDC-USB via which it will send On/Off signals.

Does the LP have on/off pins?

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lextar
Posts: 9
Joined: Tue Jun 07, 2016 9:02 pm

Tue Jun 21, 2016 8:40 am

Ok, I found the solution: DCDC- NUC + step down regulator.
In the meanwhile I started the project here:


http://imgur.com/a/FRXCO

As you can see i'm using a head unit chassis. The LP display and touch panel fits perfectly inside the original frame :)
I read about heatsink problems. Can the LP work with its original heatsink inside the case? Or is better to add a bigger heatsink? I'm planning to add a fan in the back of the chassis...

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tranman808
Posts: 10
Joined: Fri May 20, 2016 9:25 pm

Thu Jul 14, 2016 3:32 am

Any update? Also trying to do this as well.

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LattePanda
Site Admin
Posts: 2428
Joined: Wed Jan 20, 2016 9:09 am

Wed Jul 27, 2016 5:45 am

moving this thread to technical discussion
Enjoy Tinkering with LattePanda ! :lol:

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SixSixSevenSeven
Posts: 22
Joined: Sun Sep 04, 2016 7:27 pm

Sun Sep 04, 2016 11:39 pm

Idea I had was have cars 12v system regulated down to 5v feeding either a large capacitor bank or a mobile power bank or something that then powers the LP. Have windows set to auto shutdown after say 2 minutes of inactivity. Theres then an arduino onboard already, wire the arduino to detect the ignition position of the car and also to emulate a keyboard. Have it tap say the right alt key on the keyboard once every 30 seconds for as long as the ignition is read as being live, this will keep windows awake for as long as the car is running. Switch ignition off, wait a little while, boom, right alt stops being pressed due to no ignition, then after that windows shuts itself down cleanly.

However it wouldnt automatically start up which is a downside to this approach.

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SixSixSevenSeven
Posts: 22
Joined: Sun Sep 04, 2016 7:27 pm

Sun Sep 04, 2016 11:52 pm

Actually, can anyone confirm something for me. While the board is supplied 5v power but the latte panda is shut down from windows, does the arduino remain powered?
I do not yet have my board and may not until october or even november.

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Boring
Posts: 88
Joined: Sat Apr 16, 2016 7:14 pm

Mon Sep 05, 2016 6:31 pm

The Arduino remains running when 5V is supplied even when windows is not running.

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marek196c
Posts: 20
Joined: Thu Sep 08, 2016 6:37 pm

Thu Sep 08, 2016 8:58 pm

you can anyway do delay switch, that disconnect the battery after some minutes after disconnecting of power source.
By the way I'm waiting for my LP then my project is alike to get an video/audio player + gps + something else, but will pin on my radio via cd changer port (radio is an audi concert 2 on an audi a3 8p) and control it using radio (player) as got audio in as classical aux + commands through the code. but probably will open other thread on it.
Btw if some1 interested about my project and wanna help, or maybe find some way to approach their own one, can click here.

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