(a) For the implementation of the communication channel (UART/serial protocol in our case)
(b) For implementing the functions required for accessing the digital and analog peripherals
This blog post is continuation of the previous post. I have made some changes to the software on the host side. Most important among them is that now you can a have a configuration file that describes what ports on the board are available. One more change is that, as opposed to earlier, now you can select the serial port directly from the GUI rather than specifying it within a configuration file.
Here is a sample configuration file (for Arduino Duemilanove):
This project is based on Arduino Platform.