Wine Cellar Climate Monitor Kit with ESP32 + DHT22 v3
Build a Smart Wine Cellar Climate Monitor with ESP32, MQTT & DHT22
Every part needed to monitor and control your wine cellar environment, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Wine ages best in stable conditions. With this kit, you'll build a Wi‑Fi‑connected climate monitor that reads temperature and humidity from a DHT22, displays them on an OLED, and controls four appliances — like a cooler, heater, humidifier, or dehumidifier — through MQTT topics. Perfect for a home cellar or a school project on IoT automation.
What You'll Build
By the end, you'll have a functioning climate monitor that logs sensor data and toggles relays via MQTT from anywhere on your network. The OLED shows real‑time readings and relay status, so you always know the cellar's health at a glance.
What You'll Learn
- Configure ESP32 for Wi‑Fi and connect to an MQTT broker
- Read temperature and humidity from a DHT22 sensor and publish data to MQTT topics
- Control a 4‑channel relay module by subscribing to command topics
- Display sensor values and relay states on a 0.96in OLED using I2C
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| DHT22 | 1 |
| 4-ch Relay Module | 1 |
| 0.96in OLED | 1 |
| 1N4007 Diode | 5 |
| 4.7kΩ Resistors | 5 |
| 100nF Caps | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 25 |
| Micro USB Cable | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This kit is ideal for CBSE Class 11‑12 students exploring IoT in their computer science curriculum, B.Tech ECE/EEE undergraduates tackling automation capstones, and hobbyists building smart home or wine cellar monitoring systems. It also fits ATL Tinkering Labs for advanced school projects and Smart India Hackathon prototypes.
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.
What if I get stuck during the build?
You get instant guidance from the AI companion and can reach our team on WhatsApp during Bengaluru business hours.
Do I need a dedicated MQTT broker?
Yes, but the kit includes instructions to set up Mosquitto on a PC or Raspberry Pi in minutes.
Can I use this kit without Wi‑Fi in the cellar?
The ESP32 needs a Wi‑Fi network; you can use a phone hotspot as a temporary access point.
How accurate is the DHT22 for wine storage?
The DHT22 offers ±0.5°C and ±2% RH accuracy — suitable for monitoring cellar conditions. For critical long‑term aging, our calibration guide helps you improve precision.
Wine Storage — ESP32 subscribes to MQTT topics for 4 relay channels and publishes sensor readings on separate topics.
What's in this kit
- ESP32 Dev Board
- DHT22
- 4-ch Relay Module
- 0.96in OLED
- 1N4007 Diode x5
- 4.7kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x25
- Micro USB Cable
Other projects you can build
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items