[PLUG-AV] Network kit(s), was Re: Another experiment in updating our AV workflow

[Harry McNally]

Hi Nick

On 8/6/21 11:28 pm, Nick Bannon wrote:
> Not a perfect night, network-wise:
> - the wifi relay didn't seem to come up, but we ran out of time to
>    SSH in and diagnose it.

Might the USB terminal on phone idea help for all the Pis in the systems ? 
Immediate access without any other setup. I have some tools as part of a TI 
USB dev kit I was playing with. I will see how hard it is to make this work on 
the Pi.

>        ... Instead, we used some venue wifi
> - of the wired venue ports we tried, some had no link /
>    `ip addr: NO-CARRIER` and the laptop lacked lights to show that
>    (also, seems like its headphone socket is dead?)

My cheap and cheerful $2.04 USB audio adapter arrived this morning. Audio In 
seems low noise. Yet to test microphone port. Another thing to throw in the 
grab bag of situation recovery gadgets.

>    - so it's sometimes necessary to borrow a working port from another
>      device, X
>    - that can need 3 ports on a small switch:
>      - uplink to wall port
>      - downlink to X
>      - downlink for us
>      - power, maybe on a powerboard doing something similar
>      - and enough network cables: a long and a short, plus X's original
> 
> The presentation ran, but there were at least 3 glitches:
> - Webcam feed from the network froze at 30min, 62min (on the wired display laptop)
> - Client dropout on a wifi monitoring laptop at 84 minutes
> They all seemed to reconnect OK by themselves, within about 20 seconds.
> 
> Nick.
>