Build a Wine Cellar Climate Monitor with ESP32 & DHT22 — Instant BLE Alerts to Safeguard Your Collection

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

Even a few degrees above ideal can spoil an entire wine collection. This kit lets you build a compact, battery‑free climate monitor that checks your cellar every second. It sends live temperature and humidity readings straight to your phone over Bluetooth Low Energy — no Wi‑Fi needed, no complex dashboard. You’ll have the peace of mind that only real‑time data can provide, right from a simple app.

What You'll Build

A USB‑powered climate monitor that broadcasts temperature and humidity over BLE to the Serial Bluetooth Terminal app on your phone. Two onboard LEDs give instant visual feedback — red when conditions are too warm, green when everything is in the safe zone. The whole circuit sits on a breadboard, so you can prototype, test, and even enclose it later without any soldering.

What You'll Learn

• How to interface the DHT22 sensor with ESP32 and read precise digital temperature/humidity values
• BLE advertising and connection setup to stream sensor data to a smartphone in real time
• Controlling GPIOs to drive indicator LEDs based on threshold conditions
• Using the Serial Bluetooth Terminal app as a portable, code‑free display for IoT projects

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Perfect for CBSE Class 10–12 students exploring IoT fundamentals, first‑year B.Tech ECE learners looking for a quick mini project, and ATL Tinkering Labs introducing wireless sensors. It’s also a smart choice for wine lovers who want a no‑nonsense cellar monitor without investing in expensive smart home gear — just plug in, pair, and know the health of your collection at a glance.

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.