Build a Self-Sufficient Greenhouse Monitoring System with ESP32 & Sensors

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

Transform any greenhouse into an automated, self-regulating environment with this advanced ESP32 kit. You'll build a standalone station that reads temperature, humidity, and barometric pressure from multiple sensors, displays live charts on a locally hosted web page, and controls fans, heaters, or misters via a 4-channel relay — all without needing the internet. Data logs with real-time timestamps are stored on a microSD card for long-term analysis, making it the perfect tool for agricultural research, polyhouse farming, or college engineering projects.

What You'll Build

A fully enclosed monitoring device that mounts inside the greenhouse and creates its own Wi-Fi hotspot. Open the built-in dashboard on any phone or laptop to view sensor readings with interactive charts, manually toggle relays, and set automatic thresholds — for instance, turning on a fan when temperature exceeds 30°C or misting when humidity drops below 60%. The entire system is powered by a 5V supply and can be adapted to solar with the included buck converter.

What You'll Learn

• Program an ESP32 to function as a standalone web server, serving HTML, CSS, and JavaScript to render live sensor charts without any external hosting.
• Interface multiple DHT22 and BMP280 sensors on a single bus, managing timing conflicts and power efficiency.
• Write data to a microSD card with accurate timestamps from the DS3231 RTC, then export CSV files for spreadsheet analysis.
• Design and implement fail-safe relay control logic for switching 220V AC loads, including hysteresis and manual override features.

Kit Contents

Greenhouse — ESP32 runs a complete web server with charts, sensor readings and relay control. No internet required.

What's in this kit

• ESP32 Dev Board
• DHT22 x2
• BMP280
• 4-ch Relay Module
• DS3231 RTC
• MicroSD Module
• LM2596 Buck Converter
• 4.7kΩ Resistors x5
• 100nF Caps x10
• PCB Prototype Board x2
• 5V 2A PSU
• Enclosure Box
• Soldering Iron
• Solder Wire

Choose your assembly option:

• Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
• Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.