Solar Powered Smart Irrigation with IoT
ESP32 Solar Powered Smart Irrigation Kit — Build an Automatic Watering System with MQTT Monitoring
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Create a self-sustaining smart irrigation system that waters your crops based on real-time soil moisture, temperature, and rainfall — all powered by a solar-charged battery and controlled via MQTT from your phone. This kit equips you to build a fully functional prototype for farms, polyhouses, or agricultural research, with deep sleep modes that extend battery life for days.
What You’ll Build
A solar-powered automatic irrigation unit with three soil moisture sensing points, pump control, and a rain sensor that prevents wasteful watering. The ESP32 connects to WiFi to send data to an MQTT broker, and the OLED display shows live sensor readings. The battery charges from the 6V solar panel and the system goes into deep sleep between readings to conserve power.
What You’ll Learn
- How to design a solar charging circuit with 18650 Li-ion cells and TP4056
- Using ESP32 deep sleep and wake-up timers for low-power IoT
- Wiring multiple sensors (DHT22, soil moisture, rain) and relay-controlled pumps
- Establishing reliable MQTT communication for remote monitoring and control
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | x1 |
| Soil Moisture Sensor | x3 |
| DHT22 | x1 |
| Rain Sensor | x1 |
| 5V Relay Module | x2 |
| Mini Submersible Pump | x2 |
| Silicone Tube 60cm | x1 |
| Solar Panel 6V 2W | x1 |
| TP4056 Module | x1 |
| 18650 Cell | x2 |
| 18650 Holder | x1 |
| LM2596 Buck Converter | x1 |
| 0.96in OLED | x1 |
| 1N5819 Diode | x5 |
| 1N4007 Diode | x5 |
| 10kΩ Resistors | x10 |
| 100nF Caps | x10 |
| PCB Prototype Board | x2 |
| Waterproof Enclosure | x1 |
| Soldering Iron | x1 |
| Solder Wire | 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 B.Tech ECE/EEE students working on final-year projects in IoT-based agriculture, research scholars in agri-tech, and hardware startups building smart irrigation solutions for Indian farms. It’s also suitable for Smart India Hackathon teams and corporate R&D groups exploring IoT for precision agriculture.
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 to access the AI companion that walks you through each connection and code block. You can also message us on WhatsApp for direct troubleshooting support.
Can this system run 24/7 without mains power?
Yes, the 2W solar panel charges the 18650 cells during the day, and deep sleep consumes only microamps. Under typical Indian sunlight, the battery stays charged indefinitely with proper panel orientation.
Do I need to code the MQTT dashboard myself?
The AI companion provides sample code and helps you set up a broker like Adafruit IO. Basic Arduino IDE familiarity is expected, but no complex dashboard coding is required.
Is the enclosure waterproof enough for outdoor use?
The included waterproof enclosure protects electronics from rain and dust. For long-term deployment, we recommend sealing sensor cable glands and mounting the solar panel on a pole to avoid water pooling.
ESP32 + soil moisture + pump relays + WiFi MQTT. Solar charged. Deep sleep conserves battery.
What's in this kit
- ESP32 Dev Board
- Soil Moisture Sensor x3
- DHT22
- Rain Sensor
- 5V Relay Module x2
- Mini Submersible Pump x2
- Silicone Tube 60cm
- Solar Panel 6V 2W
- TP4056 Module
- 18650 Cell x2
- 18650 Holder
- LM2596 Buck Converter
- 0.96in OLED
- 1N5819 Diode x5
- 1N4007 Diode x5
- 10kΩ Resistors x10
- 100nF Caps x10
- PCB Prototype Board x2
- Waterproof Enclosure
- Soldering Iron
- Solder Wire
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
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