Originally Posted by SkyNorth
You could look at the SKY9x project.
Here is what the prototype looks like
There is a co-processor , that can support another 12 inputs.
since the software is Open source , it could be modified to fit your needs.
It is designed to fit the 9x radio from Flysky , but could be put into a custom
case if needed
Thanks Brent, I'll start researching