Lawn Irrigation Controller Pro Kit with Arduino Mega + Sensor
Build a Four-Zone Smart Lawn Irrigation System with Arduino Mega
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Transform a patchy, water-wasting lawn into an intelligently managed landscape. This kit puts you in control of four separate soil zones, each monitored by its own moisture sensor and governed by custom thresholds. A real-time clock adds schedule-based watering windows, so you override sensor triggers during rain or off-peak hours — exactly the kind of precision you need for a farm, estate, or campus project.
What You'll Build
A fully functional irrigation controller that reads moisture from four sensors, displays status on a 16x2 LCD, and triggers 12V solenoid valves only for zones that are too dry. The DS3231 RTC lets you set specific watering times, preventing valves from running at night or in midday heat. You'll solder the components onto prototype PCBs and end up with a wall-mountable unit ready for your garden or field.
What You'll Learn
- Calibrating capacitive soil moisture sensors for different soil types
- Interfacing a 4-channel relay module with high-power solenoid valves
- Programming an RTC module for time-based automation logic
- Integrating a 16x2 LCD with I2C backpack for real-time system status
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | 1 |
| Soil Moisture Sensor | 4 |
| 4-ch Relay Module | 1 |
| DS3231 RTC | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| 1N4007 Diode | 10 |
| 10kΩ Resistors | 10 |
| 100nF Caps | 10 |
| PCB Prototype Board | 2 |
| 12V Solenoid Valve | 4 |
| M-M Wires | 30 |
| 12V Adapter | 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 kit is meant for final-year B.Tech ECE/EEE students building agriculture automation capstone projects, Smart India Hackathon teams tackling smart farming themes, and advanced hobbyists ready to graduate from breadboard prototypes to real solenoid valves. If you already know Arduino and want a working outdoor system with professional-level coding and wiring, you are the right builder.
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 will walk you through wiring and code step by step. If you're still confused, our WhatsApp support can diagnose with a photo of your setup.
Do the moisture sensors corrode over time?
The included sensors are capacitive, not resistive, so they do not have exposed metal that rusts. With proper sealing, they last several seasons.
Can I expand this to more than four zones?
The Arduino Mega has spare analog and digital pins, but you would need additional relay channels and sensors. The code logic is modular and easy to extend.
Are the solenoid valves outdoor-safe?
Yes, the 12V solenoid valves are rated for outdoor use but must be protected from direct submersion. They are suitable for lawn and garden setups.
Lawn — Four soil zones each with moisture sensor, solenoid valve relay, and individualised threshold. RTC schedule override.
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