[arm-allstar] Portable Node

[Terry Bethlehem]

I've seen those on amazon. One seller recommends putting a heat sink on the
chip, if the draw is over 2.5a. A small heat sink, probably the same size
that fits on the smaller pi3 chip, might be the right size. That is, if
when your dmk cuts out, and see if the chip is hot. It could be many
things. Personally, I have a few of those buck converters. Haven't used
them yet. I'm planning on getting a larger dc to dc converter because I
want to power more things.

It might be voltage sag. It could be drawing too many amps. It could be not
adjusted to 5.17vdc. It could be many things. Looks like trouble shooting
with a multimeter might be in order.

On Dec 22, 2017 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
> > >
> >
> >
> _______________________________________________
>
> 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
>