Garden Sprinkler Timer Kit with Arduino Uno + Relay
Build an Automatic Garden Sprinkler Timer with Arduino Uno – No More Missed Watering
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
With this kit, you'll build a timer that switches on a garden sprinkler solenoid valve at times you set, using a DS3231 real-time clock and Arduino Uno. The 16x2 LCD shows the next scheduled run, so you always know when the garden gets watered. It's a practical introduction to home automation that solves a real household problem—keeping plants healthy while you're away.
What You'll Build
You'll assemble a functional garden sprinkler timer that triggers a relay to open a solenoid valve at pre-programmed intervals. The LCD displays the upcoming watering time, and tactile buttons let you adjust the schedule without a computer. This project works with standard 12V sprinkler valves (not included) and can be powered by a 9V battery or DC adapter.
What You'll Learn
- How to interface a DS3231 real-time clock with Arduino for precise timekeeping.
- Using a 5V relay module to control high-power devices safely.
- Displaying dynamic information on a 16x2 LCD with I2C backpack for reduced wiring.
- Program button-driven menus to set and adjust on/off times.
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| DS3231 RTC | 1 |
| 5V Relay Module | 1 |
| 16x2 LCD | 1 |
| I2C Backpack | 1 |
| Tactile Button | 3 |
| 1N4007 Diode | 3 |
| 4.7kΩ Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| 9V Battery Snap | 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 designed for school students (CBSE Class 7–12) exploring electronics, ATL Tinkering Lab innovators working on automation projects, and young hobbyists aged 10 and above curious about smart home solutions. It's also ideal for parent-child weekend builds and science fair exhibits that demonstrate real-world IoT concepts.
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 to chat with the AI companion trained on this kit; it understands every connection and code line. You can also reach us on WhatsApp for human assistance.
Can I connect this timer directly to my garden's water valve?
Yes, but you'll need an external 12V solenoid valve (not included). The relay module switches the valve on/off when the Arduino triggers the set schedule.
How do I change the watering schedule after I've set it?
Use the three tactile buttons—one to enter menu mode, and two to increment/decrement hours and minutes. The LCD guides you through the setting.
Does this kit include a solenoid valve or water pipes?
No, it includes only the electronic components listed. You'll need to source a standard 12V solenoid valve and plumbing materials separately based on your garden setup.
DS3231 triggers relay solenoid valve at programmed watering times. LCD shows next schedule.
What's in this kit
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