The Book of I2C

8 Arduino I²C Programming

This first chapter on I²C programming will start by discussing the Arduino platform, since it’s probably safe to say that more lines of I²C code have been written for the Arduino than for any other.

This chapter covers the following information:

• An introduction to basic I²C programming
• A discussion of the Wire programming model that the Arduino library and IDE uses
• Arduino I²C read and write operations
• Accessing multiple I²C ports on various Arduino devices

This book tends to use Arduino sketches (programs) as the basis for generic examples, so a good understanding of Arduino I²C programming will be invaluable ...