We learned about the different registers available in the Atmel AVR microcontroller to program the TWI interface. In this section we'll go through the twi_init API and the initialization of the TWI interface.
So you want to program the TWI/I2C interface of the AVR. Well you'll need to read up about the registers used to control this interface.
In this post we'll take a look at implementing an I2C/TWI library which can be used with Atmel's AVR micro-controller.
I2C is a serial data bus used to interface low speed peripherals developed by Phillips.