Build a Telegram-Controlled Wine Cellar Climate Monitor with ESP32 & DHT22

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

Turn your wine cellar into a smart, remotely accessible environment that you can monitor and control from anywhere, without ever opening the door. This kit lets you build an ESP32-powered climate monitor that reports temperature and humidity via a private Telegram bot and lets you send commands like /relay on to activate a fan or cooler. Wine collectors, restaurant owners, and serious hobbyists can now protect their investment with real-time data and responsive automation.

What You'll Build

You'll assemble a compact breadboard device with an ESP32 microcontroller, DHT22 sensor, and a relay module. The ESP32 connects to your WiFi, hosts a Telegram chatbot, and responds to your messages with live sensor readings. Typing /status returns the current temperature and humidity; /relay on energises the relay to turn on a connected cooling appliance. Two LEDs give local status feedback, and the circuit uses diodes and capacitors for noise-free operation. By the end, you'll have a production‑ready monitoring system you could deploy in a real cellar, data centre, or museum display.

What You'll Learn

• Programming an ESP32 to create a Telegram bot that interacts via WiFi
• Interfacing the DHT22 digital temperature and humidity sensor with a microcontroller
• Driving a 5V relay safely to switch mains‑powered appliances, with 1N4007 flyback protection
• Designing a stable breadboard circuit using 10kΩ pull‑up resistors and 100nF decoupling capacitors
• Structuring IoT code to handle multiple bot commands and send structured chat replies

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit fits CBSE Class 11-12 students exploring IoT in computer science, B.Tech ECE/EEE undergraduates building automation projects, and Smart India Hackathon participants needing a reliable sensor‑control node. Makers at ATL Tinkering Labs will appreciate the real‑world Telegram integration, while hobbyist wine collectors and restaurateurs get a ready‑to‑deploy climate monitor. Even IIT, NIT, VIT, and BITS Pilani students can use it as a foundation for advanced IoT research.

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.