Automated Plant Watering Kit with Arduino Uno + Sensor
Build an Automatic Plant Watering System with Arduino Uno – No More Dry Plants
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 never forgetting to water your plants again. This kit lets you build a small electronic system that senses soil dryness and automatically pumps water for exactly 5 seconds, then waits until the soil truly dries out before watering again—preventing root rot. Perfect for potted plants, school science projects, or understanding how smart irrigation works.
What You'll Build
You'll assemble a complete automated watering circuit on a breadboard, program an Arduino Uno to read a soil moisture sensor, trigger a 5V relay to turn a submersible pump on and off, and use hysteresis logic so the pump doesn't chatter. The result: a hands-free plant caretaker that keeps soil moisture at the right level.
What You'll Learn
- How a soil moisture sensor measures conductivity
- Using a relay module to switch a high-current pump safely with a flyback diode
- Writing Arduino code with threshold and hysteresis to avoid chattering
- Reading analog values and mapping them to actions
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | 1 |
| Soil Moisture Sensor | 1 |
| 5V Relay Module | 1 |
| Mini Submersible Pump | 1 |
| Silicone Tube 30cm | 1 |
| 1N4007 Diode | 3 |
| 10kΩ 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 young makers in ATL Tinkering Labs, CBSE students exploring practical electronics, and anyone aged 5-15 who wants to see code directly control real-world devices. It's also a great starting point for B.Tech first-year students who need a hands-on automation project.
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 step-by-step guidance, and you can also reach us on WhatsApp for personalised help.
How does hysteresis prevent over-watering?
After the pump runs for 5 seconds, the code requires the soil moisture reading to rise above a higher (upper) threshold before allowing another pump trigger. This prevents rapid on/off cycling and keeps roots from drowning.
Can I use this for outdoor garden plants?
The mini submersible pump works from a small water container and is ideal for indoor potted plants or balcony setups. For large outdoor gardens, you would need a bigger pump and power supply.
Is coding experience needed?
No experience required. The kit includes ready-to-upload Arduino code, and the AI companion explains every line so you learn as you build.
Soil moisture below threshold triggers relay pump for 5 seconds. Hysteresis prevents over-watering.
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