Wine Cellar Climate Monitor Kit with ESP32 + DHT22 v13
ESP32 Wine Cellar Climate Monitor Kit — Secure Temperature & Humidity Logging with AES-128 Encryption
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Wine demands precise temperature and humidity. A few degrees or percent off can ruin a bottle. This kit lets you build a battery-operated, Wi-Fi-connected monitor that encrypts every sensor reading before sending it to a cloud dashboard — so no one between your cellar and your phone can see the data. You’ll assemble the circuit, flash the ESP32 with firmware implementing AES-128 encryption, and watch the secure flow from DHT22 and BMP280 sensors to an MQTT broker where an authorized server decrypts the payload.
What You'll Build
Your final assembly is a compact climate monitor that records temperature, humidity, and barometric pressure at configurable intervals, displays them locally on an OLED, and publishes encrypted MQTT messages to any broker you choose. You’ll see live readings on a dashboard and know they’re protected end-to-end — exactly what a serious wine cellar demands.
What You'll Learn
- Implement AES-128 encryption on an ESP32 using the Arduino framework
- Set up MQTT over Wi-Fi with secure publish/subscribe
- Read and calibrate digital sensors (DHT22, BMP280) via I2C
- Design a server-side decryption routine in Node.js or Python (tutorial provided)
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | x1 |
| DHT22 | x1 |
| BMP280 | x1 |
| 0.96in OLED | x1 |
| 4.7kΩ Resistors | x5 |
| 100nF Caps | x5 |
| 400-pt Breadboard | x1 |
| M-M Wires | x20 |
| Micro USB Cable | x1 |
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 12 computer science students exploring IoT security, B.Tech ECE/EEE students building encrypted sensor networks for minor projects, or makers preparing for the Smart India Hackathon who need to demonstrate end-to-end encrypted data pipelines. It also fits ATL Tinkering Labs and hobbyists interested in wine cellar automation.
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?
Scan the QR code to access the AI companion, which can walk you through wiring, code errors, and decryption setup. If you need human help, WhatsApp our support team directly.
How do I manage the AES-128 encryption keys?
The kit includes a guide for generating unique keys per device and storing them on the ESP32’s flash. Never hardcode them in plaintext.
Can I use this with my own MQTT broker?
Yes. The firmware connects to any MQTT broker over Wi-Fi. You’ll configure the broker address, port, and topic in the Arduino sketch. A companion Node.js script on your server demonstrates decryption.
Is the data safe if someone intercepts Wi-Fi?
Yes. AES-128 encryption ensures that even if packets are sniffed, the payload is unreadable without the pre-shared key. Only your server, holding the key, can decrypt.
Wine Storage — AES-128 encrypts sensor payload before MQTT publish. Broker decrypts server-side. End-to-end secure IoT.
What's in this kit
- ESP32 Dev Board
- DHT22
- BMP280
- 0.96in OLED
- 4.7kΩ Resistors x5
- 100nF Caps x5
- 400-pt Breadboard
- M-M Wires x20
- Micro USB Cable
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