Initiate the Wire library and join the I2C bus as a master or slave. This should normally be called only once.
address: the 7-bit slave address (optional); if not specified, join the bus as a master.
The text of the 86Duino reference is a modification of the Arduino reference and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.