I have been using xcode for about 3 months so im very new to all of this c++ malarky its awesome!

I am using an Atmel 168 chip which is programmed and can be programmed through terminal. I have also established a constant comms programme with the chip.

The next part of my project is to not use terminal at all and write the communications process within my programme. www.kamtrak.blogspot.com for more information. But what i wanna do is to send voltages out of the chip which is controlled by my face tracking software. I have managed to get the debugger to display the correct values needed to move a camera rig in the direction of a persons face but now i need to establish comms through this programme.

I have bought the chip and programmer from www.nerdkits.com and they seem to have a lot of support for a lot of things its just i cant seem to find any existing code for communicating between the mac laptop via usb to serial and into the chip.

Any help on this would be much appreciated. cheers