More desk clutter... :-)

[Achim Gratz]

Gary E. Miller writes:
> I have found the RasPi 3B very sensitive to the USB power cable used.
> So I put my USB VA meter on the RasPi end of the cable, not the PS
> end.

Mine doesn't seem to care either way, but I'm using a multi-port USB
charger and a short (0.5m) cable.  The charger actually puts out a
slightly too low voltage (~4.9V), but it's very stable across the load
of both the rasPi and the TinkerBoard and neither of them has shown any
signs of being displeased with the power.

>> The TinkerBoard is even speedier, but then it also pulls a third more
>> power on average than the rasPi 3B and peaks even higher.
>
> So you can't power it with USB anymore?

No problem, see above.  Although, just as with the rasPi3, there's no
shortage of people reporting such problems.  My personal rule with USB
powered devices is to never plug or unplug the microB side while the
power is still on.  So far that seems to have avoided any problems due
to contact resistance.

> Seems a bit pricey for a small bump in performance?  Especially if
> you do not need the 4K video.

Well, 60% increase in cost for almost twice the performance.

> How well does the Ethernet port work?

It works quite well at first glance, it can actually pull the full
50MBit my connection can deliver.  I haven't put more stress on it yet,
that will have to wait for later.

> I'd be interested in how well it works just over the LAN with local
> chimers.  The Ethernet is the weak link on the RasPi.

The latency is actually a bit larger than the rasPi3 (similar to the
rasPi1, with the rasPi2 in the middle of those), but the jitter seems to
be lower.  This is with both machines fixed to 1.2GHz and looking at the
same set of pool servers outside my local network.


Regards,
Achim.
-- 
+<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+

Wavetables for the Terratec KOMPLEXER:
http://Synth.Stromeko.net/Downloads.html#KomplexerWaves