ESP32 mDNS Local Hostname Kit — Access Your Web Server by Name, Not IP

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

Think of typing a name instead of a string of numbers to reach a device. This kit lets you build exactly that: an ESP32 that hosts a mini website showing live temperature and humidity, and you simply open a browser and type compoden.local on any phone, tablet, or laptop connected to the same Wi-Fi. No need to hunt for IP addresses. It’s a practical first step into how smart devices talk to each other on local networks, and it’s designed for beginners to get a working project in one afternoon.

What You'll Build

You’ll wire a DHT22 sensor and two indicator LEDs on a breadboard, connect the ESP32, and upload a sketch that turns the microcontroller into a web server. Once it connects to your Wi-Fi, the device announces itself as compoden.local across the network. Any browser that visits that address sees a page with real-time temperature and humidity readings. The LEDs blink to confirm network activity and status. It’s a self-contained IoT node you can monitor from anywhere in the house without ever touching an IP address.

What You'll Learn

• How mDNS (Multicast DNS) works — making devices discoverable on a local network without a central DNS server
• Programming an ESP32 web server with the Arduino framework, serving dynamic HTML pages
• Interfacing the DHT22 temperature/humidity sensor and reading accurate environmental data
• Using LEDs as visual status indicators, with resistor sizing to protect the GPIO pins

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This project fits neatly into the CBSE Class 11-12 curriculum for IoT and networking, and it’s a perfect mini-project for first-year B.Tech ECE or EEE students. It’s also popular in ATL Tinkering Labs where younger learners (ages 10 and up) get their first taste of connected devices, and it can serve as a rapid prototype module for Smart India Hackathon teams. If you’re a parent or teacher guiding a curious child through the world of electronics, the accessible step-by-step guidance makes you feel like both teacher and student can succeed together.

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.