Build an Automated Houseplant Care System with Raspberry Pi 4, DHT22, Soil & CO2 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.

Your houseplants rely on consistency — this kit transforms a Raspberry Pi 4 into a vigilant guardian that reads temperature, humidity, soil moisture, CO2, and light levels, then triggers relays to run a fan, heater, water pump, and grow light exactly when needed. It’s a real-world IoT automation project that blends environmental sensing with industrial-style relay control, giving you a system that can be adapted to greenhouses, terrariums, or any indoor growing setup.

What You'll Build

You’ll assemble a fully functional plant monitoring dashboard that displays live sensor data and runs autonomous Python control logic. Two DHT22 sensors track air conditions, two soil probes measure moisture at different depths, the MH-Z19B captures CO2 concentration, and a BH1750 lux sensor monitors light intensity. Based on thresholds you set, the 4-channel relay module switches external devices: a fan for circulation, a heater against cold drafts, a pump for precise watering, and a grow light when ambient brightness falls.

What You'll Learn

• Integrate I2C and analog sensors with Raspberry Pi GPIO using Python libraries and wiring
• Design threshold-based automation logic that activates relays for fan, heater, pump, and light
• Calibrate the MH-Z19B CO2 sensor and soil moisture probes for accurate, repeatable readings
• Structure a modular Python script that logs sensor data and reacts to changing conditions

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Designed for B.Tech ECE/EEE students tackling smart agriculture or IoT assignments, participants in Smart India Hackathon building prototype solutions, and makers ready for an advanced Raspberry Pi project. The sensor loadout and relay control logic make it a strong candidate for final-year projects at IITs, NITs, VIT, and other engineering colleges — it’s a step beyond beginner kits, demanding basic Python and Linux comfort but rewarding you with a deployable automation system.

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.