Automated Grow Tent Controller Kit with Arduino Mega + DHT22
Automated Grow Tent Controller Kit with Arduino Mega + DHT22 – Full Environment Automation System
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Take full control of your indoor grow environment with a single Arduino Mega board that reads temperature, humidity, CO₂, soil moisture, and light intensity, then drives fans, heaters, a CO₂ solenoid, and LED dimming – all in real time. Whether you’re fine-tuning a hydroponic leafy greens tent or automating a high-value mushroom fruiting chamber, this kit gives you the hardware, the build blueprint, and an intelligent assistant to eliminate guesswork.
What You'll Build
A wall‑mountable controller that continuously monitors five critical parameters through six sensors and responds by switching actuators via relays and a MOSFET. The OLED displays live readings cycled with RTC timestamps, while every data point is logged to a microSD card for analysis. The result is a completely self‑contained system that maintains target conditions without manual intervention – exactly what a serious indoor gardener needs.
What You'll Learn
- Integrate DHT22 sensors using one‑wire protocol and apply offset calibrations for accurate temperature and humidity
- Interface the MH‑Z19B CO₂ sensor over UART and implement auto‑calibration for long‑term ppm stability
- Use analog soil moisture sensors with threshold logic to control irrigation relays safely
- Drive high‑current loads like LED strips and solenoid valves with a MOSFET and relay module, protected by flyback diodes
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | 1 |
| DHT22 | 2 |
| MH-Z19B CO2 | 1 |
| Soil Moisture Sensor | 2 |
| BH1750 | 1 |
| 4-ch Relay Module | 1 |
| IRF540N MOSFET | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 0.96in OLED | 1 |
| 10kΩ Resistors | 10 |
| 100nF Caps | 15 |
| PCB Prototype Board | 3 |
| 12V 3A PSU | 1 |
| Soldering Iron | 1 |
| Solder Wire | 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 controller is built for B.Tech ECE/EEE students executing final‑year projects in smart agriculture or IoT, for IIT/NIT/VIT/BITS researchers prototyping controlled environment chambers, and for DIY hydroponics enthusiasts who demand lab‑grade automation at home. If you’ve outgrown simple temperature switches and need a unified sensor‑actuator logic with SD card data logging, this kit matches your ambition.
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?
The AI companion guides you step by step; you can also share photos on WhatsApp and get a response from our team within a few hours.
Can this controller manage a mushroom fruiting chamber?
Yes, the DHT22 and CO₂ sensors are ideal for maintaining high humidity and precise CO₂ levels required for mushroom cultivation. The relay outputs can run humidifiers and exhaust fans on your preset schedules.
Does the kit include ready‑to‑upload code for the Arduino?
The AI companion provides a complete base sketch for all sensors and actuators. You’ll learn to tweak thresholds and control loops yourself, but the working code is delivered with calibration notes for Indian conditions.
Will the relay module safely switch 220V AC fans and heaters used in India?
Absolutely. The 4‑channel relay is rated for 250V AC. You must wire mains connections through a proper electrical box and follow the AI companion’s safety checklist – never leave live terminals exposed.
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.
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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