Lawn Irrigation Controller Plus Kit with Arduino Mega + Sensor
Advanced Arduino Mega Lawn Irrigation Controller Kit — Automate Four Soil Zones with RTC Scheduling
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Imagine walking on a lawn that never gets over-watered, where each patch receives moisture only when the soil truly needs it. This kit lets you build a real, field‑ready controller that drives four 12 V solenoid valves based on sensor feedback and a programmable RTC schedule. You wire soil probes, relays, display and data logging into one robust system.
What You'll Build
A fully functional irrigation brain: Arduino Mega reads four soil moisture sensors, decides which zone needs water, and opens the corresponding relay to activate a solenoid valve. The DS3231 RTC allows timed sprinkler cycles (morning, evening, weekends) that can override manual rules. A 16×2 LCD shows zone status in real time, while a microSD module logs moisture levels and valve events. Everything housed on soldered prototype boards, powered by a 12 V adapter.
What You'll Learn
- Interfacing multiple analog soil moisture sensors with Arduino Mega and calibrating thresholds
- Driving inductive loads safely using relay modules and 1N4007 flyback diodes
- Programming the DS3231 RTC to create time‑based watering schedules and timestamp log entries
- Streaming sensor data to a microSD card over SPI and displaying zone status on an I2C LCD
- Soldering components onto PCB prototype boards for a durable, real‑world prototype
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | x1 |
| Soil Moisture Sensor | x4 |
| 4-ch Relay Module | x1 |
| DS3231 RTC | x1 |
| MicroSD Module | x1 |
| 16x2 LCD | x1 |
| I2C Backpack | x1 |
| 1N4007 Diode | x10 |
| 10kΩ Resistors | x10 |
| 100nF Caps | x10 |
| PCB Prototype Board | x2 |
| 12V Solenoid Valve | x4 |
| 12V Adapter | 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
B.Tech ECE/EEE students taking on embedded systems internships or Smart India Hackathon challenges will find this perfect for a live irrigation demo. CBSE ATL Tinkering Lab mentors can use it to teach sensor integration and automation at an advanced level. Engineering final‑year projects at IIT, NIT, VIT or BITS often need exactly this kind of multi‑sensor, relay‑driven proof of concept.
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 provides immediate visual and code guidance, and you can reach a real expert on WhatsApp for tricky soldering or relay wiring questions.
Can this controller manage AC water pumps?
The relay module is designed for 12 V DC solenoids, but you can add external contactors to switch AC pumps; the AI companion explains the modification.
How do I program the watering schedule?
The DS3231 RTC library lets you set precise on/off times per zone; modify the code template to define morning and evening cycles, or skip weekends.
Is soldering experience required?
The kit includes a soldering iron and solder wire, and the AI companion offers step‑by‑step soldering instructions — ideal for practising PCB assembly.
Lawn — Four soil zones trigger individual solenoid relays. RTC override schedule on Mega.
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