The I2C bus is a two-wire serial bus for connecting a wide range of ICs to a computer or micro-controller:
- wikipedia [L1 ]
- article con LinuxJournal [L2 ]
- I2cTcl for Tcl/Tk on LINUX [L3 ])
- See the presentation from Uli Ender
- You can find an example to write to a LCD with an I2C interface using Arduino here: Firmata