ESP32 Wine Cellar Climate Monitor Kit: Local MQTT, No Internet Needed

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

For wine collectors, temperature fluctuations can ruin a prized vintage. This kit lets you build a two-zone climate monitor that reports temperature and humidity to a central ESP32 acting as its own MQTT broker, all without relying on WiFi or cloud services. Alarms and logging are local, and a relay channel can automate a cooling fan or dehumidifier based on thresholds you set.

What You'll Build

A standalone monitoring system for a wine cellar with two wireless sensor nodes, each measuring temperature and humidity, displayed on an OLED screen. The ESP32 runs an MQTT broker that collects sensor data over a local network, triggering relays when conditions drift outside safe ranges. All communication stays within your premises, ideal for environments where internet access is unreliable or a security concern.

What You'll Learn

• Set up an ESP32 as a full MQTT broker using the uMQTT Broker library
• Interface DHT22 sensors for precise humidity and temperature measurement
• Design a local wireless sensor network without external cloud dependencies
• Program relay logic to automate climate control based on sensor thresholds

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Ideal for B.Tech ECE/EEE students building IoT projects for Smart India Hackathon, CBSE Class 11-12 students exploring embedded systems, and hobbyists managing wine storage or controlled environments. If you need a reliable local climate monitor for ATL Tinkering Lab demonstrations or a capstone project at IIT/NIT/VIT/BITS, this kit provides hands-on experience with MQTT protocol, sensor networks, and automation without internet.

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.