Build a Secure Greenhouse Climate Monitor with ESP32 and 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.

Greenhouses thrive on precise microclimate control, but remote monitoring often relies on insecure channels. With this kit, you’ll assemble an ESP32-based sensor node that reads temperature and humidity via a DHT22, displays local readings on a 0.96‑inch OLED, and sends encrypted data to a secure cloud API using HTTPS with verified TLS certificates. You’ll learn how to embed a root CA certificate into the ESP32, ensuring the device trusts only the genuine server — a critical skill for industrial IoT deployments. By the end of the 3- to 4-hour build, you’ll have a professional‑grade monitor that protects your data from spoofing and eavesdropping.

What You'll Build

By the end of this project, you’ll have a fully functional greenhouse climate monitor that records ambient temperature and humidity every few seconds, shows real‑time values on a crisp 0.96‑inch OLED screen, and transmits each reading over an encrypted HTTPS connection to a server you control. The breadboard‑based hardware can later be housed in an enclosure, and the code is structured so you can easily add sensors like a soil moisture probe or a relay. You’re building a trusted IoT node that would feel at home in a commercial farm.

What You'll Learn

• Configure an ESP32 to make an HTTPS GET request with full TLS certificate verification
• Read temperature and humidity from a DHT22 sensor and calibrate the readings
• Display live sensor data on an OLED screen using I2C communication
• Implement safe IoT communication practices to prevent man‑in‑the‑middle attacks

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is designed for intermediate makers — students in CBSE Class 11–12 working on computer science or physics projects, B.Tech ECE and EEE undergraduates prototyping for Smart India Hackathon, and mentors at ATL Tinkering Labs looking for a secure IoT demonstration. If you’ve written a few Arduino sketches and want to move into networked embedded systems, the Greenhouse Climate Monitor gives you a production‑relevant challenge without overwhelming complexity. It’s also a great capstone project for skill‑building workshops at IIT, NIT, VIT, or BITS Pilani.

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.