ESP32 Server Room Temperature Monitor Kit with DHT22 – On-Device MQTT Broker

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

With this kit, you’ll build a self‑contained server room temperature monitor: an ESP32 runs a lightweight MQTT broker inside, two DHT22 sensors publish temperature and humidity data locally, and a 4‑channel relay module can trigger cooling fans or alerts — all without needing an internet connection. Perfect for data centres, school server racks, or any mission‑critical environment where local monitoring is essential.

What You'll Build

You’ll assemble a complete environmental monitoring console that displays real‑time temperature and humidity on a 0.96‑inch OLED screen, logs data via the on‑device uMQTT Broker, and uses GPIO‑connected relays to control cooling equipment when thresholds are crossed. No cloud dependencies, no subscription fees — just a reliable, standalone monitor you can place in any server room.

What You'll Learn

• Configure an ESP32 to run uMQTT Broker as a standalone MQTT message bus
• Read temperature and humidity from dual DHT22 sensors using the one‑wire protocol
• Build a local dashboard on the OLED screen to display live sensor data
• Program relay logic to automate cooling fans or alarms based on temperature thresholds

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

CBSE Class 11‑12 students exploring IoT and electronics projects, B.Tech ECE/EEE undergraduates building a real‑world sensor mini‑project, and Smart India Hackathon or ATL Tinkering Lab participants who need a reliable data centre monitoring array. It’s equally suited for makers and IT support staff setting up server room monitoring in school labs or home infrastructure.

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.