[arm-allstar] Portable Node

[Doug Crompton]

Chris,

 While the one you mention is probably OK if it is working properly I would
recommend the fixed 5V 3A  12V to 5V adapters. There are a ton of them on
ebay. I have always had good luck with them. They are sealed and no
adjustments and very high efficiency. They don't even get warm at a
constant couple of amps out. At $2-$3 each you could use one for the radio
and one for the Pi if you wanted although one would run both fine. For the
888 I would put a diode in series with the 5V to drop it to a reasonable
level. Here is just one example....

https://www.ebay.com/itm/DC-DC-12V-to-5V-6V-9V-2-3A-15W-Converter-Step-Down-2A-3A-15W-Power-Supply-Module-/401327863545


*73 Doug*

*WA3DSP*

*http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*



On Fri, Dec 22, 2017 at 3:04 PM, "Chris Viningre via arm-allstar" <
arm-allstar at hamvoip.org> wrote:

> 12 volts from the truck battery to the box. Step down voltage regulator to
> Pi3 running 5volts.
>
> https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.
> ebay.com%2Fulk%2Fitm%2F222245520202
>
>
> On Dec 22, 2017 12:55 PM, "David McGough" <kb4fxc at inttek.net> wrote:
>
> >
> > Chris,
> >
> > What kind of power supply are you using on the RPi3?
> >
> >
> > 73, David KB4FXC
> >
> >
> > On Fri, 22 Dec 2017, "Chris Viningre via arm-allstar" wrote:
> >
> > > Portable node is a 888, DMK soundfob and AT&T hotspot on my cellphone.
> I
> > > have an issue that I'm hoping someone might have a insite on. If I
> start
> > my
> > > node without WiFi and then turn the hotspot on. The soundfob will go
> dead
> > > after trying to transmit (no lights). It will continue even after I
> > restart
> > > Asterisk. Rebooting will not work either. Even if I unpower the system
> > for
> > > 10 seconds it will not work. I found if I leave it off for awhile and
> > turn
> > > it on with WiFi on first. Everything works find. Ok, the simple answer
> is
> > > to not turn it on without WiFi, and I do when I'm still at home. But
> > > sometimes I forget. Thanks
> > > _______________________________________________
> > >
> > > arm-allstar mailing list
> > > arm-allstar at hamvoip.org
> > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> > >
> > > Visit the BBB and RPi2/3 web page - http://hamvoip.org
> > >
> >
> >
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>
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>