Build a Wireless MQTT Data Pipeline with ESP8266: First Publish-Subscribe 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.

Imagine one ESP8266 module faithfully transmitting live temperature and humidity readings from a DHT22 sensor into the cloud, while a second ESP8266, sitting across the room or even a different city, instantly picks up those numbers and displays them on a crisp OLED screen. This kit turns you into the creator of a real IoT network in one afternoon—no prior networking experience required.

What You'll Build

You will assemble two independent wireless nodes using breadboards and ESP8266 NodeMCUs. The publisher reads the DHT22 and publishes data to a public MQTT broker. The subscriber listens to the same topic and continually updates the OLED with temperature and humidity. The result is a transparent, real‑time data pipeline that demonstrates how smart devices talk to each other over the internet.

What You'll Learn

• Configure an ESP8266 NodeMCU with Arduino IDE and connect it to Wi‑Fi
• Interface the DHT22 sensor and parse calibrated digital temperature/humidity readings
• Publish structured MQTT messages with topic and payload to a public broker
• Subscribe to MQTT topics and render live sensor data on an OLED display

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Designed for CBSE Class 11‑12 and B.Tech ECE/EEE students exploring IoT for the first time. A practical tool for Smart India Hackathon prep, ATL Tinkering Lab projects, or hobbyists at IIT/NIT/VIT/BITS who want to understand MQTT without wrestling with complex networking libraries. Even younger makers (age 10+) can follow the guided build successfully.

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.