You can also use the Debian package i2c-tools to communicate with things connected to the busses on your computer.
I once used it to play with a set of Melexis IR sensors I'd soldered to the VGA port on a crap video card. It made writing the Arduino code way easier after figuring out all the hard things with Linux. There was even enough power on the VGA pin to run 4 of them!
Really though, it was just exciting to be able to wire some of my own hardware into the computer and write a program to talk to it. Made me feel like I actually own my computer again.
I once used it to play with a set of Melexis IR sensors I'd soldered to the VGA port on a crap video card. It made writing the Arduino code way easier after figuring out all the hard things with Linux. There was even enough power on the VGA pin to run 4 of them!
Really though, it was just exciting to be able to wire some of my own hardware into the computer and write a program to talk to it. Made me feel like I actually own my computer again.