Transforming your AVR Microcontroller to the I2C or TWI Slave I/O Expander Project | ermicroblog
ATmega8 and TWI (I2C) sensors
Davide Gironi: An AVR Atmega library for HD44780 based lcd connected through i2c
Easy 24C I2C Serial EEPROM Interfacing with AVR Microcontrollers
BASCOM-AVR
GitHub - MicrochipTech/avr128da48-i2c-send-receive-example: This repository contains examples of bare metal source code for I2C. The code examples were developed for AVR128DA48.
Reading from EEPROM using AVR I2C | All About Circuits
How to use I2C-bus on the Atmel AVR Microcontroller | ermicroblog