Multi-Zone Indoor Climate Monitor: An Arduino Kit to Compare Temperature Across Rooms

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

Imagine a single Arduino reading temperature and humidity from three different rooms at once, then comparing them on a crisp OLED display. This kit builds exactly that — a multi-zone climate monitor that reveals hot spots, drafts, and humidity imbalance in your home, school lab, or greenhouse. Ideal for a CBSE Class 12 physics investigatory project, a B.Tech mini-project, or a Smart India Hackathon prototype, you’ll walk away with a working system that solves a real indoor comfort puzzle.

What You'll Build

You’ll create an autonomous sensor unit with three DHT22 nodes on long wires, each placed in a separate room. All three connect to a single Arduino Uno through a TCA9548A I2C multiplexer, so one microcontroller can address each sensor individually. A 0.96‑inch OLED cycles through readings or highlights the room with the biggest temperature difference, giving you instant insight into how your indoor climate varies.

What You'll Learn

• Multiplexing the I2C bus with the TCA9548A to communicate with three identical sensors on one Arduino
• Reading temperature and humidity accurately from DHT22 sensors and stabilising readings with decoupling capacitors
• Programming an OLED display to show real‑time multi‑room data and comparative analytics
• Applying pull‑up resistors and noise filtering to make a robust sensor network that works reliably across rooms

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Designed for intermediate builders aged 15 and up, this kit fits CBSE Class 11–12 students crafting a sensor‑based physics or computer science investigatory project. B.Tech ECE and EEE students will appreciate the deep dive into I2C multiplexing, while ATL Tinkering Lab mentors and Smart India Hackathon participants get a ready‑to‑demonstrate climate monitoring prototype that mirrors real‑world building automation.

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.