I2C is also extremely common as a low-speed peripheral bus in electronic devices - some common applications are: - Small EEPROMs, often used for configuration

I2C is also extremely common as a low-speed peripheral bus in electronic devices - some common applications are: - Small EEPROMs, often used for configuration data or small firmware blobs - MEMS sensors (accelerometers, gyroscopes, etc) - Small LCD/OLED displays (e.g. 128x64) - Configuration ports on devices which use other busses for bulk data (e.g. display drivers, audio codecs, etc).