Powering from car's installation

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Jorgos
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Powering from car's installation

Unread post by Jorgos » Tue Dec 03, 2019 3:13 am

Hello!
I received my N2 and I am very very happy about the device, it performance and factor. As it will be replacement for my old XU4 as car's PC i was wondering if it is good idea to power it directly from my car's installation. As far as I can see from docs, allowed voltage is 7,5~18V while in car it should not exceed 16V at any time. I am using XU4 with power converted based on LM2596S and it works very well, so I was wondering if with N2 I need to lower down and stabilize the input power.

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Re: Powering from car's installation

Unread post by rooted » Tue Dec 03, 2019 3:39 am

I would use something to stabilize the voltage.

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Re: Powering from car's installation

Unread post by JustSumDad » Tue Dec 03, 2019 8:35 am

I am doing up a carPC with an N2 and plan a UPS with this:

https://www.aliexpress.com/item/3295267 ... b201603_55

Should do the trick...
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rooted (Tue Dec 03, 2019 10:03 am)
God I wish I could write apps!

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Re: Powering from car's installation

Unread post by rooted » Tue Dec 03, 2019 10:06 am

JustSumDad wrote:I am doing up a carPC with an N2 and plan a UPS with this:

https://www.aliexpress.com/item/3295267 ... b201603_55

Should do the trick...
That is a nice looking device but it has no way to signal the power has been disconnected that I see, you will have to interface with a GPIO pin (or the power button input) on the N2 to signal power is disconnected so it can shutdown automatically.

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Re: Powering from car's installation

Unread post by odroid » Tue Dec 03, 2019 11:33 am

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Re: Powering from car's installation

Unread post by rooted » Tue Dec 03, 2019 2:14 pm

odroid wrote:Something like this approach.
https://wiki.odroid.com/odroid-n2/appli ... ini_dc_ups
That's a great tutorial Image

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Re: Powering from car's installation

Unread post by Jorgos » Tue Dec 03, 2019 7:22 pm

Actually I don't need UPS, so will just my fastcharge charger to get stable 9/12V.

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Re: Powering from car's installation

Unread post by rooted » Tue Dec 03, 2019 10:44 pm

Jorgos wrote:Actually I don't need UPS, so will just my fastcharge charger to get stable 9/12V.
I would use one of these with a Type C PD adapter:

https://www.ebay.com/itm/1Pc-Type-C-USB ... 2323389971

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Re: Powering from car's installation

Unread post by benwillcox » Tue Dec 03, 2019 11:28 pm

I used a ltc3780 DC-DC converter for a while with my N2 hoping that it would reduce noise on the audio output. As it didn't really help I removed the ltc3780 and powered the N2 directly from the car 12v supply (well, via a relay controlled from an Arduino).
I've had it running for many weeks without any trouble so far.

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Re: Powering from car's installation

Unread post by Jorgos » Wed Dec 04, 2019 12:05 am

rooted wrote:
Tue Dec 03, 2019 10:44 pm
Jorgos wrote:Actually I don't need UPS, so will just my fastcharge charger to get stable 9/12V.
I would use one of these with a Type C PD adapter:

https://www.ebay.com/itm/1Pc-Type-C-USB ... 2323389971
How does it really works? I need to adjust the voltage every time or only once (first time)? I was about to make it on my own, as QC2 requires only 2 resistors to set 9V.

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Re: Powering from car's installation

Unread post by rooted » Wed Dec 04, 2019 3:37 am

Just once, there is a video on YouTube describing the function of these.

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Re: Powering from car's installation

Unread post by Jorgos » Wed Dec 04, 2019 3:45 am

Thanks, mean time i found all i needed online so i have ordered one :) thanks!

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Re: Powering from car's installation

Unread post by rooted » Wed Dec 04, 2019 5:00 am

Jorgos wrote:Thanks, mean time i found all i needed online so i have ordered one :) thanks!
Good luck with your project Image

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Re: Powering from car's installation

Unread post by JustSumDad » Thu Dec 05, 2019 6:33 am

Jorgos wrote:
Tue Dec 03, 2019 7:22 pm
Actually I don't need UPS, so will just my fastcharge charger to get stable 9/12V.
I decided to UPS it because of concern for orderly shutdown, I also wanted my N2 to run for a bit after I shut my motorcycle off and not drain the small system battery on a bike.
God I wish I could write apps!

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Re: Powering from car's installation

Unread post by rooted » Thu Dec 05, 2019 12:16 pm

JustSumDad wrote:
Jorgos wrote:
Tue Dec 03, 2019 7:22 pm
Actually I don't need UPS, so will just my fastcharge charger to get stable 9/12V.
I decided to UPS it because of concern for orderly shutdown, I also wanted my N2 to run for a bit after I shut my motorcycle off and not drain the small system battery on a bike.
That is the good thing about DIY, you get to do it exactly how you want it Image
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Re: Powering from car's installation

Unread post by mad_ady » Thu Dec 05, 2019 2:19 pm

What are you going to do with an N2 on a motorcycle? I can't think of any use for it... :)

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Re: Powering from car's installation

Unread post by rooted » Thu Dec 05, 2019 2:36 pm

mad_ady wrote:What are you going to do with an N2 on a motorcycle? I can't think of any use for it... :)
Navigation, music, etc. The same stuff you would do in a car ;)
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Re: Powering from car's installation

Unread post by mad_ady » Thu Dec 05, 2019 2:58 pm

I don't know... For music you need headphones I guess and any phone will do, and I haven't seen screens on motorcycles yet. Can't use them while driving, and it's not as comfortable to use while stopped either... Plus, the odroid needs to be in some water-tight compartment, I would think. So a much more complicated setup than a car, with fewer benefits.
But I'd like to be proven wrong.,.

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Re: Powering from car's installation

Unread post by rooted » Thu Dec 05, 2019 4:07 pm

mad_ady wrote:I don't know... For music you need headphones I guess and any phone will do, and I haven't seen screens on motorcycles yet. Can't use them while driving, and it's not as comfortable to use while stopped either... Plus, the odroid needs to be in some water-tight compartment, I would think. So a much more complicated setup than a car, with fewer benefits.
But I'd like to be proven wrong.,.
A lot of motorcyclist (in the US) have multi-hundred watt audio systems on their cycles nowadays, and navigation doesn't need to be looked at as it can do voice over Bluetooth as well. Sure you can do this on a phone but why not have a dedicated device?

You would definitely need to have a method of waterproofing of course.

It was stated in another thread he would be doing navigation, maybe some audio, and I don't remember what else.

*edit*
JustSumDad wrote: Yes, while it may be used for music I have other uses I want it for:
1) Google maps Nav - I will use my cell as a wifi hotspot when maps need updating, I will use offline mapping mode mostly.
2) Ham radio APRS tracking and mapping via APRSdroid app - useful when outside cell areas.
3) MPGuino interface - I plan to make a fuel tracking system called MPGuino and hope to take the output from the Arduino merge into an app on the android system for display.
4) Music - meh... maybe if I do it will be BT most likely with my helmet system.

My goal is to get it working well and not mess with it, I love to ride, I love to tinker and make things work, once they work I dont want to tinker with them anymore :)
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