Lawn Irrigation Controller Kit v5
Smart Lawn Irrigation Controller Kit: Buzz When Your Grass Is Thirsty with Raspberry Pi Pico
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Ever come home to a dry, patchy lawn after a long day? This kit lets young makers build a soil moisture sentinel that actually beeps when watering is overdue. Using a Raspberry Pi Pico and a corrosion-proof capacitive sensor, the device continuously reads how wet the soil is, displays the exact percentage on a crisp OLED screen, and buzzes loudly if the lawn needs a drink. It’s a cheerful, hands‑on way to turn plant care into a coding adventure.
What You'll Build
You’ll assemble a portable moisture station you can stick directly into the soil — in a garden bed, a potted plant, or right on the lawn. The 0.96‑inch OLED shows a live moisture percentage, and the active buzzer sounds when the reading drops below your customised threshold. The entire circuit sits on a breadboard, so there’s no soldering needed — just plug, code, and start watching your plants talk.
What You'll Learn
- Wire a capacitive soil moisture sensor and read its analog output via the Raspberry Pi Pico’s ADC in MicroPython
- Program the Pico to display real‑time moisture percentage on a 0.96‑inch OLED using I2C communication
- Set a moisture threshold and activate an active buzzer as a clear audible alert
- Build solderless circuits on a breadboard and use pull‑down resistors for stable sensor readings
Kit Contents
| Component | Quantity |
|---|---|
| Raspberry Pi Pico | 1 |
| Soil Moisture Sensor | 1 |
| 0.96in OLED | 1 |
| Active Buzzer | 1 |
| 10kΩ Resistors | 5 |
| 400-pt Breadboard | 1 |
| M-M Wires | 20 |
| Micro USB Cable | 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
Perfect for CBSE Class 8–12 students exploring the skill subject curriculum, ATL Tinkering Lab tinkerers, and young gardening enthusiasts who want to make their plants “speak.” It’s also a great parent‑child weekend activity that brings coding outdoors. Even B.Tech first‑year students looking for a gentle IoT introduction will find everything they need in this box.
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 box to access the AI build companion. It provides code snippets, wiring diagrams, and debugging tips tuned exactly to this kit. You can also message us on WhatsApp for human help.
Can this kit automatically water my lawn?
No, this kit is a moisture monitor and buzzer alarm — it does not include a water valve or pump. If you want to extend it to an automatic watering system, the AI companion can guide you through adding a relay module and solenoid valve.
Is the soil sensor safe to leave outdoors?
The capacitive sensing prong is sealed and resists corrosion, making it perfect for damp soil. Keep the electronic header above the soil line, and protect the breadboard with a plastic case if you plan to leave it outside for extended periods.
What if my child has never coded before?
The AI companion offers ready‑to‑copy MicroPython code and step‑by‑step instructions. A child as young as 10 can follow along with an adult’s help, and within the 2‑3 hour build they’ll see the code bring their garden sensor to life.
Lawn — Capacitive soil sensor + MicroPython buzzes when plant is thirsty. OLED shows moisture percentage.
What's in this kit
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