[Cialug] Need help automating log capture/reboot

[Justin Richeson]

The power supply is supposed to be 5v @ 4A....but unfortunately I don't
have a good way to test that for sure.  I need to build some multi-adapter
cables for my in-line power analyzer.  Barrel plugs are always a pain
though since there's so many....

On Mon, Oct 9, 2017 at 3:21 PM, Dave Hala <dave at 58ghz.net> wrote:

> I've ran into this few times over last couple of years, where the USB hub
> does not have a large enough power supply when loaded up devices.
>
> :) Dave
>
> On Mon, Oct 9, 2017 at 3:17 PM, Justin Richeson <neomatrixjr at gmail.com>
> wrote:
>
> > So, I've got a bit of an odd power/hub setup, but it seems to work fine
> for
> > everything else...
> > I've got a powered hub...and the raspberry pi is plugged into that hub
> as a
> > device and is being powered by the hub....on one of it's higher power
> > "charge" ports.
> > And then the hub is plugged in as a device of the pi so I can use the USB
> > hub...as a hub.
> > If memory serves then, into the hub I have my wifi stick, a USB stick, a
> > USB-->Serial adapter for an X10 firecracker, and the pi.  I'll put a USB
> > power analyzer on it again when I get home, but if memory serves it's had
> > no power issues...and the pi never shows the power fault icon with this
> > setup.
> >
> > This is the hub:
> > http://a.co/aZsGba1
> >
> > *NOTE* I just noticed...looking at the hub's description, that the
> "charge"
> > ports on the hub are just that...CHARGE ports.  In no way is the
> raspberry
> > pi a device unto itself via the hub.  It's 7+2.  7 HUB ports + 2 Charge
> > ports.
> >
> > On Mon, Oct 9, 2017 at 1:44 PM, L. V. Lammert <lvl at omnitec.net> wrote:
> >
> > > On Mon, 9 Oct 2017, David Champion wrote:
> > >
> > > > My first guess with the WiFi adapter is it's a power issue. Is the
> usb
> > > > hubpowered or passive?
> > > >
> > > Probably plugged in directly, .. some other suggestion:
> > >
> > >  * A simple ping script would allow taking action (and recording to a
> > >    separate log file) - suggest ifdn/ifup the USB interface as a first
> > >    test.
> > >
> > >  * Swap the PS with a new 2A unit anyway. You can get them for a few
> > bucks
> > >    from China, or there are a number of US sources.
> > >
> > >  * Check the temp of the case and be sure you have decent ventilation
> > >    around the unit - some cases might need a small fan for 24/7
> > operation.
> > >
> > > Let us know what you find, ..
> > >
> > >         Lee
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>
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