This is an interface I designed to work with a Baofeng without having to modify the radio for COS. I have left a copy of the schematic for now down below.
My interface is fully functional if I am at home using it on my same LAN. I am currently still trying to get this to work though a HotSpot from Remote locations. I am still currently testing this. Once I have the code fixed and everything working I will update this site.
References that I used for my project...
This is an excellent source to this project or any project for Allstar on the Beaglebone or RaspPi2.
http://crompton.com/hamradio/BeagleBoneBlackAllstar/
This is a good source for setting up wireless on the Beaglebone.
http://www.crompton.com/hamradio/BeagleBoneBlackAllstar/bbb_wireless_howto.pdf
Source for using multiple Allstar nodes on the same Lan.
http://www.crompton.com/hamradio/BeagleBoneBlackAllstar/multi-server%20howto.pdf
This is a source that got me started and thinking on this project.
http://w0fcm.com/allstar-portable-node/
Setting up a proxy server for AllstarLink.
https://allstarlink.org/proxy.html
Another source that helped me get started with my schematic and my design of the board.
https://www.youtube.com/watch?v=QopvHGM-9_k
AllstarLink Main Site.
(MORE INFO TO FOLLOW at a later date)
Picture of the Fob once modified.
Pictures of the Interface Board and finished Product
Pictures of the finished Box that I carry the interface in.
Used to Power BeagleBone Black and also used for an external Phone/HotSpot charging port on the outside of the box. You will want to use one of these to be able power the BeagleBone. This is why I suggest a 12V/2amp Power Supply or more.