### Interrupt driven(ps2_interrupt.c)
Uses pin interrupt to detect falling edge of clock line.
### USART hardware module(ps2_usart.c)
- Uses AVR USART engine to recevie PS/2 signal.
+ Uses AVR USART engine to receive PS/2 signal.
To select method edit Makefile.
To change pin configuration edit config.h.
-Build Frimware
+Build Firmware
--------------
Just run `make`: