Soil Moisture Sensor Starter Kit Kit with Arduino Uno + Sensor
Build a Plant Watering Alert System with Arduino Uno Soil Moisture Sensor Kit
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Keep your plants perfectly hydrated with a DIY alert system you build yourself. This kit uses a capacitive soil moisture sensor to measure how wet the soil is, display the exact moisture percentage on a crisp 0.96-inch OLED screen, and sound a buzzer the moment your plant needs water. A perfect weekend project for young makers and curious gardeners.
What You'll Build
You'll create a real-time soil moisture monitor that plugs directly into a plant pot. The OLED shows a live moisture percentage — 100% when wet, 0% when bone-dry — and the buzzer beeps when levels drop below a threshold you set. Use it at home to keep herbs happy, or take it to your school science fair as a working environmental monitor.
What You'll Learn
- Read analog sensor data from a capacitive soil moisture sensor
- Interface an OLED display over I2C and map sensor values to visual output
- Write conditional logic in Arduino to trigger a buzzer at a chosen moisture point
- Assemble a complete circuit on a breadboard and power it with a 9V battery
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Uno R3 | x1 |
| Soil Moisture Sensor | x1 |
| 0.96in OLED | x1 |
| Active Buzzer | x1 |
| 10kΩ Resistors | x5 |
| 400-pt Breadboard | x1 |
| M-M Wires | x20 |
| 9V Battery Snap | 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
This kit is designed for school students tackling CBSE Class 11–12 physics practicals, ATL Tinkering Lab projects, and Smart India Hackathon mini challenges. B.Tech first-year ECE students use it for sensor lab work, and home gardeners explore DIY automation. Children as young as 10 can assemble it with parental help; the clear code and breadboard layout make learning visual and rewarding.
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 on the kit to open the AI companion; it walks you through wiring, code upload, and troubleshooting specific to this project. If you prefer human help, WhatsApp us — we respond in minutes during Indian business hours.
Can I use this kit for a school science fair?
Yes, it’s ideal for CBSE, ICSE, and state board science exhibitions. The OLED output makes data visible to visitors, and the buzzer alert adds an interactive element that judges appreciate.
Does it work for all soil types?
The capacitive sensor reads moisture based on dielectric constant, so it performs well in potting soil, garden soil, and sandy mixes without corrosion issues common in resistive sensors.
Is the Arduino code provided?
You get a fully commented Arduino sketch with the kit, and the AI companion explains every line based on your experience level, from block-based logic to C++ tweaking.
Capacitive soil sensor shows moisture percentage on OLED. Buzzer alerts when plant needs water.
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