R-pi i2c 1wire expansion module [v1.1]

The module works on all versions of Raspberry Pi. A guide on how to get started can be found here: [OWFS on Raspberry Pi](http://wiki.m.nu/index.php/OWFS_p%C3%A5_Rasperry_Pi) Features: - Drivers are included in the latest version of Raspian Wheezy, but you need to compile owfs yourself. - Built around DS2482-100+ chip. - The 1-wire bus and 1-wire network power supply are ESD and overvoltage protected. - The expansion board can be powered directly from the Raspberry Pi. (Make sure to bridge JP1) - The expansion board can be powered separately via screw terminals on the board. (Remove any bridging of JP1) - It is possible to set the I2C address by shorting AD0 and/or AD1 with a little solder. Up to 4 I2C 1-wire modules can be connected to the same Raspberry Pi. - Size: 39x19mm - The expansion board fits in most commonly used cases, except for PiBow cases. Raspberry Pi is not included.