Automated Greenhouse Climate Controller Kit with Arduino Uno + DHT22
Automated Greenhouse Climate Controller Kit with Arduino Uno & DHT22 – Build a Self-Regulating Environment for Plants
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Create a miniature smart greenhouse that automatically regulates temperature, humidity, and soil moisture using real-time sensor data. This advanced kit transforms a simple terrarium or indoor grow box into a self-regulating ecosystem, ideal for B.Tech projects, hackathon prototypes, or serious home automation setups.
What You'll Build
A working climate-controlled greenhouse where a DHT22 reads ambient temperature and humidity, and two soil moisture sensors monitor plant pots. The Arduino Uno processes the data and triggers servo-operated vents, a relay-driven cooling fan, and a relay-driven water pump to maintain your set thresholds. A 16x2 LCD with I2C backpack displays live readings and the current mode (cooling, venting, irrigating).
What You'll Learn
- Implementing multi-parameter closed-loop control logic for temperature, humidity, and soil moisture
- Interfacing DHT22, resistive soil moisture sensors, and an I2C LCD with Arduino Uno
- Driving servo motors, fans, and pumps safely using relay modules and flyback diodes
- Designing a robust power supply scheme with decoupling capacitors for stable sensor operation
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| DHT22 | 1 |
| Soil Moisture Sensor | 2 |
| SG90 Servo | 2 |
| 4-ch Relay Module | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| 1N4007 Diode | 5 |
| 10kΩ Resistors | 10 |
| 100nF Capacitors | 10 |
| 830-pt Breadboard | 1 |
| M-M Wires | 30 |
| 12V Adapter | 1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
This advanced kit is designed for B.Tech ECE, EEE, and agricultural engineering students building final-year projects or Smart India Hackathon prototypes. It also suits experienced hobbyists who want to automate a home greenhouse or terrarium. The build assumes familiarity with Arduino programming, basic circuit assembly, and working with 12V loads.
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.
What if I get stuck during the build?
Your AI companion provides step-by-step debugging for this exact kit. Scan the QR code on the box or message us on WhatsApp; we’ll help you resolve issues within hours.
Can I control the greenhouse remotely?
This kit focuses on local autonomous control. To add remote monitoring, you can integrate an ESP8266 or ESP32 module (not included) using the spare breadboard space and our documentation as a starting point.
Does this kit include a water pump and fan?
The relay module allows you to control a 12V fan and pump, but the fan and pump themselves are not included. You can use any standard 12V DC fan and submersible pump available at local electronics stores or online.
How accurate are the DHT22 and soil moisture sensors?
The DHT22 offers ±0.5°C temperature and ±2% RH humidity accuracy. The resistive soil moisture sensors provide reliable wet/dry thresholds when calibrated with dry and wet soil samples as described in the build guide.
DHT22 + soil moisture trigger servo vent, relay fan and relay pump to maintain target temp, humidity and soil moisture.
What's in this kit
- Arduino Uno R3
- DHT22
- Soil Moisture Sensor x2
- SG90 Servo x2
- 4-ch Relay Module
- 16x2 LCD
- I2C Backpack
- 1N4007 Diode x5
- 10kΩ Resistors x10
- 100nF Caps x10
- 830-pt Breadboard
- M-M Wires x30
- 12V Adapter
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Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items