Greenhouse Soil Manager Kit with Arduino Mega + DHT22
Full‑Spectrum Greenhouse Automation Kit with Arduino Mega — Control Climate, Soil Moisture, CO2, and Light
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
This kit transforms an indoor grow tent or hobby greenhouse into a self‑regulating environment. Two DHT22 sensors, a CO2 meter, dual soil moisture probes, and a light sensor feed the Arduino Mega, which then drives exhaust fans, heaters, a CO2 solenoid, and an LED dimmer through relays and a MOSFET. Designed for growers and engineering project builders who need precision without piecing together multiple vendors.
What You'll Build
You'll assemble a complete control hub on prototype boards, load the firmware, and calibrate sensors to maintain target temperature, humidity, CO2 concentration, soil moisture, and light intensity. The OLED displays real‑time readings, while the RTC and MicroSD log environmental data for later analysis. By the end of the build, you have a deployable closed‑loop controller that fine‑tunes every actuator based on sensor fusion — exactly what modern greenhouse management demands.
What You'll Learn
- Integrating I2C, 1‑wire, UART, and analog sensors with an Arduino Mega
- Driving high‑power actuators via relay modules and MOSFET switching
- Implementing PID feedback loops for stable climate control
- Real‑time clock scheduling and SD‑card data logging with error handling
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | x1 |
| DHT22 | x2 |
| MH-Z19B CO2 | x1 |
| Soil Moisture Sensor | x2 |
| BH1750 | x1 |
| 4-ch Relay Module | x1 |
| IRF540N MOSFET | x1 |
| DS3231 RTC | x1 |
| MicroSD Module | x1 |
| 0.96in OLED | x1 |
| 10kΩ Resistors | x10 |
| 100nF Caps | x15 |
| PCB Prototype Board | x3 |
| 12V 3A PSU | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
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 kit suits advanced makers, B.Tech ECE/EEE final‑year students building automation projects, Smart India Hackathon teams, and ATL innovation labs that need a complete, integrated control system. Whether you're an IIT/NIT/BITS research project focusing on controlled environment agriculture, or a horticulture enthusiast automating an indoor tent, the kit provides the full hardware stack in one box.
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?
Scan the QR code for your AI companion; it walks you through wiring, code upload, and calibration. WhatsApp support is also available for hands‑on troubleshooting.
Can I adapt this kit for outdoor greenhouse use?
The sensors and controller are indoor‑rated. With waterproof enclosures (not included), you can deploy it outdoors; the companion includes notes on weatherproofing and sensor positioning.
Is programming knowledge required?
Yes, this is an advanced kit. You'll upload pre‑written Arduino code that you can modify; fully commented firmware covers PID loops, sensor drivers, and actuator logic.
Does the kit include soldering tools?
Yes, a soldering iron and solder wire are included. You'll assemble the circuit on the provided prototype boards following the step‑by‑step diagrams from the AI companion.
Greenhouse — DHT22, CO2, soil and lux all control tent fan, heater, CO2 solenoid and LED dimmer together.
What's in this kit
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.
Other projects you can build
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