ESP32 mDNS Service Discovery Kit — Build a Self-Discovering IoT Sensor Grid

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 placing three ESP32 sensor nodes across different rooms or campus zones and having them all appear automatically on a central dashboard—without ever typing a single IP address. This kit lets you build exactly that: a dynamic, discovery-driven sensor network where each node uses mDNS to announce itself and a gateway node picks them all up in real time. You’ll move beyond static IoT setups and into the world of zero-configuration device networking, a foundational skill for modern smart infrastructure projects.

What You'll Build

Three standalone ESP32 sensor stations, each equipped with a precision DHT22 temperature/humidity sensor, that automatically register their presence over WiFi using mDNS (Multicast DNS). A dedicated gateway ESP32 with a 0.96-inch OLED display continuously discovers all active nodes, fetches their readings, and presents live environmental data without any hardcoded IPs. The result is a plug-and-play sensor backbone that you can expand, move, or reboot without reconfiguration.

What You'll Learn

• Implement mDNS on ESP32 to advertise services and discover nodes autonomously
• Build a multi-point distributed sensor system with DHT22 sensors for reliable environmental data
• Program asynchronous WiFi + mDNS logic in the Arduino IDE for real-time network resilience
• Design a zero-configuration IoT architecture that eliminates static IP dependency

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

B.Tech ECE and EEE students tackling advanced IoT networking electives, Smart India Hackathon teams building distributed sensor grids without manual IP management, and research scholars prototyping on-the-fly device discovery for smart campus deployments. Ideal for IIT, NIT, VIT, and BITS students who need a reliable, ready-to-assemble network of three nodes and a visual gateway that just works.

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.