ESP32 WebSocket Chat Kit: Build a Real-Time Messaging Server with LED Alerts

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 two browser tabs - on the same computer or across two devices - talking to each other in real time, with an LED blinking every time a message lands. This kit turns that idea into a tangible build. You'll assemble the ESP32 circuit, upload a pre-built WebSocket server sketch, and watch two browser clients chat instantly while a physical LED confirms every received message. It's a perfect first dive into how the internet actually talks.

What You'll Build

You'll create a self-contained ESP32 WebSocket server that hosts a simple chat interface. Open two browser tabs pointed at the ESP32's IP address, type in one tab, and the message appears instantly in the other tab - with a connected LED flashing each time. It's a hands-on demonstration of real-time networking, perfect for school projects, ATL Tinkering Lab showcases, or just satisfying your curiosity about how chat apps work under the hood.

What You'll Learn

• Set up an ESP32 as a standalone WiFi access point and WebSocket server
• Understand how real-time bidirectional communication works between clients
• Program event-driven logic to trigger an LED on incoming messages
• Debug basic electronics circuits on a breadboard with LEDs and resistors

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Designed for young makers aged 10-15 who are curious about how the internet works, this kit is a favourite in ATL Tinkering Labs and CBSE school electronics clubs. It's also a great starting point for B.Tech ECE/EEE students who want a quick, functional IoT project. No prior coding experience is necessary - the AI companion walks you through every step.

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.