Micro:bit Lawn Irrigation Kit for Kids - Soil Moisture Alert
Build a Plant Watering Alert System with the Lawn Irrigation Controller Kit (BBC Micro:bit)
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Turn a BBC Micro:bit into a smart plant caretaker. This kit guides young makers through building a soil moisture alert system that flashes a yellow LED and sounds a piezo buzzer when a plant needs water. It's a perfect first electronics project that connects code to the real world, using crocodile clips so no soldering is needed.
What You'll Build
You'll assemble a working soil moisture monitor that reads dryness levels and triggers a visual and audible alert. Insert the sensor probes into any potted plant, program the Micro:bit to check the readings, and watch the yellow LEDs light up and the buzzer beep when the soil is too dry. The entire circuit clips together effortlessly.
What You'll Learn
- How a soil moisture sensor works by measuring resistance between two probes
- Reading analog sensor values on the BBC Micro:bit and displaying them on the LED matrix
- Using conditional logic in MakeCode to set a dryness threshold and trigger outputs
- Building a no-solder circuit with crocodile clips, LEDs, and a piezo buzzer
Kit Contents
| Component | Quantity |
|---|---|
| BBC Micro:bit v2 | 1 |
| Soil Moisture Sensor | 1 |
| Piezo Buzzer | 1 |
| LED Yellow | 2 |
| Crocodile Clips | 4 |
| MicroUSB Cable | 1 |
| AA Battery Holder | 1 |
| AA Batteries | 2 |
| M-M Wires | 10 |
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
Designed for kids aged 8-10 exploring electronics for the first time. It's ideal for ATL Tinkering Labs and home-schooling families in India, bridging beginner coding with tangible real-world monitoring. Teachers and parents can use it to introduce sensors and basic alarm logic in a playful, hands-on way without any soldering.
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 in the box to chat with the AI companion trained on this project, or message us on WhatsApp for a quick walkthrough.
Do I need to solder anything?
No soldering at all. All connections use the included crocodile clips and M-M wires, so even young children can assemble it safely.
Can this kit automatically water the plant?
This kit alerts you when the soil is dry. To add automatic watering, you would need a separate water pump and relay (not included).
Which plants can I test with this sensor?
Any potted plant works. Insert the sensor probes into the soil near the roots, and the system will monitor moisture levels continuously.
Lawn - Soil moisture sensor connected to micro:bit sends an alert when a plant is too dry - automated plant care for kids.
What's in this kit
- BBC Micro:bit v2
- Soil Moisture Sensor
- Piezo Buzzer
- LED Yellow x2
- Crocodile Clips x4
- MicroUSB Cable
- AA Battery Holder
- AA Batteries x2
- M-M Wires x10
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