Build a Smart Greenhouse Climate Monitor with Arduino Uno & DHT11

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

What if your greenhouse could automatically mist the plants when humidity drops? With this kit, you’ll build a real‑time climate monitor using an Arduino Uno, DHT11 sensor, and relay module. It reads humidity inside the grow tent, triggers a misting fan above a set threshold, and lights up an LED to show the zone’s status—exactly like systems used in commercial polyhouses across India.

What You'll Build

By the end of this 2-3 hour build, you’ll have a working humidity controller that can be placed inside any greenhouse or indoor grow setup. The DHT11 continuously senses moisture levels; when humidity falls below your programmed threshold, the relay activates a fan or mister. A green LED confirms stable conditions, while a red LED warns of dry air—giving you visual zone status at a glance.

What You'll Learn

• Wiring and coding a DHT11 humidity sensor with Arduino Uno
• Controlling a high‑power device (misting fan) through a relay module
• Setting threshold‑based automation logic in Arduino IDE
• Building LED indicators for real‑time system status

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is ideal for CBSE Class 11-12 students working on agriculture electronics projects, B.Tech ECE/EEE students exploring automation, and participants of Smart India Hackathon building Agri-tech prototypes. It’s also a perfect fit for ATL Tinkering Labs and young innovators (ages 10-15) at NIT, VIT, or BITS Pilani workshops, who want to understand sensor-driven control systems in a hands-on way.

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.