The objective is to efficiently (space wise) combine the heart of the Arduino Due (SAM3X8E) with the additional functionality of
USB (to interface with the DUE for programming)
Power (9v battery, or open to suggestions based on circuit design and the need for minimal space/volume)
onto a single board, as small as possible.
All chips must work *together* (no pin conflicts) with the arduino due.
Also, willing to pay up to 50% additional to be able to make a few small modifications after the initial design is ratified (i.e. add a button or two, LED or two, etc). Starting specs and technical docs can be found on spark fun for these chips.
An NDA will be required and all files (Gerber Files, BOM, Eagle), will be solely owned by our company. Additional work will likely follow to make small modifications going forward.