[Elecraft] K3S Raspberry Pi 2 Adventures in small computing

[Jerry Moore]

So far it's a blast. I just ordered/received a BEC (battery equiv. Circuit that's a DC-DC converter to drop 12v down to 5v at up to 5A continuous), The RPI2 is in an AL Case, I need to drill/tap a ground connection for it. Then decide what is the smallest display I can live with. I have it on an old 12" flatscreen right now and it's plenty big enough. The idea being to get the power reqs, size, and weight down for portable use. 
I've still not figured out RTTY in FLDigi but have chalked that up to not knowing FLDigi well enough yet. The K3S is 100% on RTTY and is sending audio over..
One other potential thing to work out is apparently when I run two sessions of FLDigi the audio device is only available to the first instance. I'll likely need to either figure out how to get it to share or setup a software mixer to connect to.. not sure yet.

Eventually I want to add the SUB Rx and monitor two bands. 

Jerry Moore
CDXA, INDEXA, SKCC, Fists
AE4PB, K3S - S.N. 010324
http://www.qrz.com/db/AE4PB
An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, and Patriotic.


-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dave Cole
Sent: Tuesday, February 16, 2016 7:37 PM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3S Raspberry Pi 2 Adventures in small computing

Thank you for sharing that Jerry...  I have been wanting to do exactly that, and was wondering if the RP2+ would do it.
--
73's, and thanks,
Dave

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On Tue, 2016-02-16 at 16:53 -0500, Jerry Moore wrote:
> WOW,
> 
> That pretty much sums up my experience so far.
> 
> I was using a Raspberry PI B+ to run Debian *nix and FLDIGI. CPU under 
> XWindows with FLDigi running bounced around 90%.
> 
> Shut down, unplugged, swapped in the Raspberry PI 2, plugged in the SD 
> card from the Pi B+, powered up. just a few updates later..
> 
> Xwin + FLDigi the CPU sits at 8%, 2 Instances of FLDigi CPU sits 
> around 15%.
> 
> NIICE..
> 
> Fun fun J
> 
>  
> 
> Jerry Moore
> 
> CDXA, INDEXA, SKCC, Fists
> 
> AE4PB, K3S - S.N. 010324
> 
> http://www.qrz.com/db/AE4PB
> 
> An Amateur is - Considerate, Loyal, Progressive, Friendly, Balanced, 
> and Patriotic.
> 
>  
> 
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