I2C Communication Protocol Explained | SDA, SCL, & Addresses Simply Explained
Master the I2C protocol in under 5 minutes! Learn how SDA and SCL wires allow a single Master to communicate with multiple Slave devices like sensors and OLEDs.
In this video, we break down the Inter-Integrated Circuit (I2C) protocol. Whether you are working with Arduino, Raspberry Pi, or ESP32, understanding the "Two-Wire Wonder" is essential for clean circuitry and efficient data handling. We cover:
Related videos: • Explanation Videos
How the I2C bus works with only two wires.
The difference between SDA (Data) and SCL (Clock).
How device addressing (hex codes) prevents data collisions.
Why Pull-up resistors are the secret to a stable connection.
0:00 - The Problem: Wire Spaghetti
0:08 - What is I2C? (The 2-Wire Protocol)
0:17 - SDA vs SCL Explained
0:29 - How Master/Slave Addressing Works
1:13 - Real-World Applications (Drones & IoT)
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