Build a Live Room Temperature Heatmap Web App with the ESP32 & DHT22 Kit

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

Transform your room into a living data canvas. This kit lets you deploy five wireless temperature sensor nodes, collect real-time data, and render an interactive heatmap in your browser—a project that bridges IoT hardware with full-stack web development right on your desk.

What You'll Build

You'll assemble five battery-friendly DHT22 sensor nodes that transmit temperature and humidity readings to a central ESP32 over NRF24L01 radio modules. The ESP32 serves the data as a web page with a JavaScript heatmap that interpolates values across your room's floor plan, updating live as conditions change.

What You'll Learn

• Deploying a wireless mesh of DHT22 sensors using NRF24L01 transceivers.
• Programming ESP32 as a web server to handle multiple sensor streams.
• Building an HTML/CSS/JavaScript dashboard with canvas-based heatmap interpolation.
• Troubleshooting real-world sensor drift, RF interference, and power management for multi-node projects.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Ideal for CBSE Class 11-12 students exploring IoT as part of the curriculum, B.Tech ECE/EEE undergraduates building sensor-networked projects for Smart India Hackathon, and ATL Tinkering Lab mentors looking for a ready-to-run data visualization project. Hobbyists who want to skip part sourcing and jump straight into wireless sensor data will feel right at home.

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.