Hi guys,
I intended to build a handheld using core Arduino, TouchShield, Xbee, ...
Let's assume that my handheld is working and therefore, i need to write the specs to manufacturer. I do believe that some components of Arduino, Touchshield and so on will not be used for this handheld purpose. Is it possible to exclude those components and include the necessary circuit for my handheld so that total cost is minimal?