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[[Category:AVR Tutorials]]

=Basics=

The I²C (Inter-Integrated Circuit) protocol, referred to as I-squared-C, I-two-C, or IIC) is two wire serial communication protocol for connecting low speed peripherals to a micrcontroller or computer motherboard. 
You can go through [[I2C/TWI Basics|I²C /TWI Basics]] tutorials to understand how I²C works.

=Registers=
====TWBR====
====TWCR====
====TWSR====
====TWDR====
=Practical Example=

[[A6.AVR Interfacing: RTC DS1307|AVR Interfacing: RTC DS1307]]