ESP32 Mesh Wine Cellar Climate Monitor Kit — Build a Self-Healing Wireless Sensor Network

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

Temperature and humidity fluctuations can ruin a wine collection before a single cork pops. This kit lets you build a five-node ESP32 wireless mesh network that monitors conditions across every corner of a cellar. Each node reads its microclimate with a DHT22 sensor, then routes data through the painlessMesh network — even if some nodes are out of direct range. The 0.96-inch OLED displays the live mesh topology so you always see which nodes are talking to which.

What You'll Build

You wire five ESP32 dev boards with DHT22 sensors, each placed in a different rack or zone. The painlessMesh firmware forms a self-organising web where messages hop from node to node. One master node collects all readings and pushes them to the OLED, showing not just the data but the real-time routing graph. If a node loses power or moves out of range, the mesh automatically finds an alternative path — your wine stays monitored, no blind spots.

What You'll Learn

• Initialize and configure painlessMesh on multiple ESP32s, setting node roles and mesh credentials
• Interface DHT22 sensors correctly — pull-up resistor placement, decoupling caps, and avoiding I2C contention on shared pins
• Design multi-hop routing logic that passes packets across intermediate nodes, with automatic discovery of new members
• Render dynamic network topology on a 0.96-inch OLED using U8g2, turning raw mesh tables into a visual map

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Ideal for CBSE Class 11–12 students diving into IoT and wireless communication, B.Tech ECE/EEE undergraduates prototyping mesh-based monitoring for Smart India Hackathon, and ATL Tinkering Lab instructors who want a ready-to-deploy mesh project. Wine enthusiasts setting up a home cellar will also appreciate a climate monitor that never drops a reading.

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.