Build a MQTT Home Sensor Network with Node-RED – Compoden 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.

This kit lets you build a distributed sensor network spanning two ESP8266 nodes that publish temperature, humidity, air pressure, and combustible gas levels to a local MQTT broker. You'll watch the data stream live on a Node-RED dashboard with historical charts, creating a home environment monitor that's perfect for engineering projects or building a custom smart home.

What You'll Build

A wireless sensor network with two remote nodes: Node 1 gathers precise temperature and humidity from a DHT22 and barometric pressure from a BMP280; Node 2 monitors combustible gases using an MQ-2 sensor and also displays temperature/humidity on an OLED. Both publish to an MQTT broker running on your laptop, where Node-RED visualises all values in real time with auto-updating gauges and trend charts. You'll end up with a functioning IoT dashboard that logs data and shows alerts when gas levels spike—just like a mini industrial monitoring system.

What You'll Learn

• Configure ESP8266 nodes to connect to Wi-Fi and publish structured MQTT topics for temperature, humidity, pressure, and gas readings
• Host a Mosquitto broker on your laptop, manage authentication, and debug message flow using MQTT.fx or Node-RED's inject nodes
• Build a Node-RED dashboard with real-time gauges, time-series charts, and an alert panel that reacts to sensor thresholds
• Interface DHT22, BMP280, MQ-2 sensors and SSD1306 OLED displays with ESP8266 using I2C and analog inputs, and power them reliably with the LM2596 buck converter

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This advanced IoT kit targets B.Tech ECE and EEE students who need a working prototype for academic projects or Smart India Hackathon submissions. It's ideal for final-year engineering students at IITs, NITs, VIT, or BITS who want to master wireless sensor networks, MQTT, and Node-RED dashboards—skills highly valued in industrial IIoT roles. Hobbyists familiar with Arduino IDE who want to move beyond single-board projects will also find the multi-node system challenging and rewarding.

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.