I2C Bus Multi-Device Demo Kit: Learn I2C Addressing and Sensor Coexistence with Arduino Uno

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Build a fully functional I2C bus system that reads temperature, pressure, and time and displays everything on an OLED screen. This kit makes multi-device I2C communication tangible—scanning addresses, detecting conflicts, and making sensors coexist on just two wires. It’s the perfect launchpad for understanding how real embedded systems share data.

What You'll Build

You’ll assemble a breadboard circuit with an Arduino Uno, BMP280 environmental sensor, DS3231 real-time clock, and a 0.96-inch OLED, all connected through the same I2C bus. The finished project shows live temperature, atmospheric pressure, and the current date and time on the OLED, switching between screens with a simple button press. It’s a compact, real-world demo of an I2C network in action.

What You'll Learn

• Scan I2C addresses to identify every device on the bus
• Configure multiple I2C modules to share the same data and clock lines
• Read precision sensor data (temperature, pressure) from a BMP280 over I2C
• Display dynamic text and numbers on an OLED using I2C commands

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Designed for curious students aged 10–15 exploring electronics, ATL Tinkering Lab participants, and CBSE Class 9–12 students building science fair projects around communication protocols. First-year B.Tech ECE/EEE learners will also find it a practical, hands-on introduction to I2C addressing, while parents and hobbyists can use it to guide a child through a rewarding, plug-and-play build.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.