[Freeswitch-users] SwitchPi

Ken Rice krice at freeswitch.org
Fri Jun 3 18:13:39 MSD 2016


Why the Pi you ask? Why custom hardware to go with it? 

 

Generic X86 Hardware is not the end all be all. While the X86 based CPUs means that there can be less portability issues than say something like ARM or SPARC or other architectures, the PI still typically offers several other capabilities that may not be offered on the other Single Board Computers at a $35 price point.

 

Then there is the well documented pile of GPIO ports that make it quite easy to drive things like custom keypads, servos, steppers, etc etc etc…  this means you can spin a small custom board (in my case its about 1.5 square inches) that has the specific additional hardware for adding an additional 24 GPIOs giving room for a combination of something like 36 buttons worth of keypads and 12 other dry contact inputs and outputs (if you use 12 of the GPIO pins to drive a keypad array you can get 36 buttons. Basic formula  for max number of potential keys   (n/2)^2 where n is the number of GPIO pins used in the keypad array. 

 

Now mix that with that fact that ARM is not a second class Linux citizen anymore, we can pretty easily copy the source over compile and go. And things just work (barring the occasional endian issue that happens when taking software between architectures that are big vs little vs bi endian)

 

Now theres always talk of a new cheap x86 based SoC such as the Edison, or other Arm based SBC like the odriod, or the CHIP, but I have yet to see one that is as readily available as the Pi at the $35 with the myriad of addons and software already running on it.

(Yesterday I installed FreeSWITCH on a Pi and it took about 45 minutes…  there was 1 issues with Faxing that we are looking into and its probably an endian issue) 

 

From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Colton Conor
Sent: Friday, June 3, 2016 7:59 AM
To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
Subject: Re: [Freeswitch-users] SwitchPi

 

May I ask the question of why make something customer just to run on the Rasberry Pi? There are X86 SOC coming to the market that will be close to the cost of the Pi, and be much more powerful. Plus, you can run regular x86 operating systems. 

 

On Thu, Jun 2, 2016 at 12:11 PM, Ken Rice <krice at freeswitch.org <mailto:krice at freeswitch.org> > wrote:

The custom boards allow for hardware DTMF keypad interface, hook switch and a few other things like LCD for CLID on old school phones with that provision.

 

There will be official Raspian packages sooner or later… theres a know issue with the cowbuilder that’s blocking this at this time, we’re working on a work around… 

 

From: freeswitch-users-bounces at lists.freeswitch.org <mailto:freeswitch-users-bounces at lists.freeswitch.org>  [mailto:freeswitch-users-bounces at lists.freeswitch.org <mailto:freeswitch-users-bounces at lists.freeswitch.org> ] On Behalf Of William Scott
Sent: Wednesday, June 1, 2016 6:52 PM
To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org <mailto:freeswitch-users at lists.freeswitch.org> >
Subject: Re: [Freeswitch-users] SwitchPi

 

Hi

 

Yes, I have FusionPBX/freeSwitch running on a RPi3. Will the ARM build ever become "Official"?

 

I've watched a 'tube video or two. What is the functionality of the custom boards?

  <https://mailtrack.io/trace/mail/d1a10f8bcbe53cd87724e18dfebb1cfaa57d5246383145.png> 


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