Similar to cruise control system on car, I use Light sensor as a real time feeback to control the speed of the fan.

The feedback used the PID algorithm to determine the next output.

• AVR-GCC for linking
• AVR-GDB for debugging
• AVR-Libc for support libraries
• AVRDUDE for uploading code to the on-chip memeories of Michrochip's AVR controller

To compile: make all

To run: make main-install