Hydroponics Nutrient Monitor Plus Kit with Arduino Uno + Sensor
Build a Hydroponics Nutrient Monitor with Arduino – Save Your Plants from Drying Out
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 a hydroponics setup that tells you exactly when your plants need water — no guesswork, no dead seedlings. This kit lets you build a capacitive soil moisture monitor that shows live percentage readings on a bright OLED screen and sounds a buzzer when the moisture drops below a safe threshold. Perfect for young growers and classroom STEM experiments.
What You'll Build
You'll assemble a working plant hydration monitor that detects soil moisture using a capacitive sensor, processes the data with an Arduino Uno, displays it as a percentage on a 0.96-inch OLED, and triggers an active buzzer alert when watering is needed. The result is a compact, battery-powered device you can place next to any planter or hydroponic system.
What You'll Learn
- Wiring and reading a capacitive soil moisture sensor with Arduino
- Programming a 0.96-inch OLED display to show real-time data
- Using conditional logic to activate a buzzer based on sensor thresholds
- Building a battery-powered standalone gadget on a breadboard
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
Ideal for CBSE Class 11–12 students working on sensor-based projects, B.Tech ECE/EEE undergraduates prototyping for hydroponics, and ATL Tinkering Lab mentors guiding beginner electronics. Also great for Smart India Hackathon participants needing a moisture monitoring module and young hobbyists aged 5–15 exploring Arduino.
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?
Every kit includes a QR code to a dedicated AI build companion that walks you through each wiring step and code upload. If you still need help, our WhatsApp support replies within hours.
Can I use this kit for regular potted plants, not hydroponics?
Yes, the capacitive sensor works in potting mix as well. The AI companion will help you adjust the moisture threshold so the buzzer triggers at the right level for your soil type.
How do I calibrate the sensor to get the right alert level?
The included sketch lets you read raw sensor values and map them to percentages. Our build companion guides you through a simple calibration routine using completely dry and fully wet soil samples.
Will the battery run out quickly if the OLED is always on?
No, the default code turns off the display after 5 seconds of inactivity to conserve power. It only lights up when you press the reset button, making a 9V battery last for weeks of typical use.
Hydroponics — 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