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  1. I2C - SparkFun Learn

  2. I²C - Wikipedia

  3. I²C - Digilent Reference

  4. I2C Communication - All about I²C with Diagrams - Seeed Studio

  5. Basics of the I2C Communication Protocol - Circuit Basics

  6. I2C Primer - I2C Bus

  7. I2C Info – I2C Bus, Interface and Protocol

  8. Introduction to the I2C Bus - Technical Articles - All About Circuits