[arm-allstar] "Repeater Cape" for BBB

[Randy Neals]

The UDRC-II is a very interesting Pi Hat for interfacing radios to Pi's
http://nwdigitalradio.com/wp-content/uploads/2012/04/UDRC-IIDS.pdf

It uses the TI 3204 Sound Chip which is I2C.
Hoping for a new channel driver with I2C support in our future.

Has anyone estimated the level of effort to update the Channel Driver?
ie: Is it 100 hrs work, or 2000 hrs work?

thx,
-Randy

On Mon, Oct 13, 2014 at 2:20 PM, Tim Sawyer <tim.sawyer at mac.com> wrote:

> Please not USB. The TI chip (http://www.ti.com/product/tlv320aic3104)
> from the BBB Audio cape (http://elinux.org/CircuitCo:Audio_Cape_RevB)
> might be a better choice than another CM108 device.
>
> It would be an interesting exercise to see if the audio cape could work
> with ArchLinux and app_rpt. If so build a new board with the TI chip and
> power supply. A DTMF decoder on the cape would be handy for muting and
> power cycle functions. A real time clock might be useful too. Call it the
> BRIC - BBB Radio Interface Cape.
>
> --
> Tim
> :wq
>
> On Oct 12, 2014, at 6:49 PM, Doug Crompton <doug at crompton.com> wrote:
>
> Randy,
>
>  The short answer to all of you thoughts is yes. We have thought about all
> of them. In the short term an update of the usbradio and simpleusb channel
> drivers is in the works. I still think that the USB audio path is a good
> one and improvements that have been made in the upcoming version and that
> will be made in the channel drivers in a future version will only make that
> better. The idea of a cape is a good one but designing and manufacturing
> something like that would be a commercial effort. If it's cost was equal to
> the DMK URI or maybe less it would probably be sell but if it were much
> more then why not just use a URI and a wall wart power supply or you could
> just build up a simple 3 terminal regulator off of the 12V supply. In the
> end it would work the same and maybe cost less.
>
> You do bring up a good point about the GPIO though. However there are
> rather inexpensive capes to buffer/driver gpio as well as relay driver
> boards that are dirt cheap on Ebay. Also the new versions of the code will
> have direct support for the watchdog timer.
>
> I don't think there will be anything anytime soon at least not that I am
> aware of but if there is I think it will cost (probably substantially) more
> than doing it yourself. Since most hams are cheap a do it yourself solution
> might be the best way.
>
> I anyone wants to pursue this by all means do. We can work with you on the
> software interface if needed.
>
>
>
> *73 DougWA3DSPhttp://www.crompton.com/hamradio
> <http://www.crompton.com/hamradio>*
>
>
> ------------------------------
> Date: Sun, 12 Oct 2014 17:57:53 -0700
> From: randy at neals.ca
> To: arm-allstar at hamvoip.org
> Subject: [arm-allstar] "Repeater Cape" for BBB
>
>
> Is anyone thinking about building a Radio/Repeater Cape for the BBB?
> ie: a URI or RB-USB-RIM re-spun as a cape
>
> I would be interested in a cape with these attributes.
> Cape Form Factor which attaches to BBB headers (daughter board)
> -12 VDC power input (power pole?) which then regulates 5 VDC for BBB
> supply.
> -Reverse polarity protection on power input
> -USB interface to BBB via usb cable (because USB is not on header)
> -CM119 audio chip
> -buffers for more GPIOs than URI/RB-USB-RIM
> -Similar features as RB-USB-RIM
>    -USB/Host Heartbeat with capability to trigger in cabinet repeat in
> case of BBB fail
>
>
> Longer term, with different audio drivers, the BBB has I2C audio driving
> the HDMI interface.
> A repeater cape could have an I2C Audio DAC as an alternative to USB Audio.
> Currently available analog Audio Capes for BBB take this approach.
>
>
> Beaglebone Audio Cape
> http://elinux.org/CircuitCo:Audio_Cape_RevB
>
> Beaglebone Power Cape
> http://elinux.org/AndiceLabs:PowerCape
>
> Regards,
> Randy, W3RWN
> Seattle
>
>
>
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