I2c Overview ◉

I2C (Inter-Integrated Circuit), often pronounced "eye-squared-see" or "eye-two-see," is a popular, synchronous, multi-master/multi-slave communication protocol invented in 1982 by Philips Semiconductors (now NXP). It is used for short-distance, intra-board communication between a processor and low-speed peripherals such as sensors, LCDs, and memory chips. Its hallmark is using only two wires for communication, making it highly efficient for managing multiple devices on a single bus.

Uses a Serial Data Line ( SDA ) and a Serial Clock Line ( SCL ). I2C Overview

The master pulls the SDA line low while SCL remains high. I2C (Inter-Integrated Circuit)

Multiple masters can control the same slave, and multiple slaves can reside on the same bus. often pronounced "eye-squared-see" or "eye-two-see