I need a C programmer experienced with making Android apps for tablets or phones. Must have Android USB experience. Most of the C code will be available from another application. Just need to create GUI and USB interface. I prefer someone in California so that integrating hardware is simpler.
The project should be in two stages: the first is to create an "on/off" button that sends a command/data string out the USB port, a different string for "on" and a different string for "off" and also a volume control (slider) that sends different command/data strings to set different volume levels.
Once this is completed and tested, then the project is simply expanded and the GUI design finalized.