Whole Home Leak Detection Network Kit with ESP32 + Sensor
Whole Home Leak Detection & Automatic Water Shutoff Kit with ESP32 Hub and Eight Arduino Nano Sensor Nodes
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 never having to worry about a burst washing‑machine hose or a leaking kitchen pipe while you’re away. This kit lets you deploy eight battery‑powered moisture sensors around your home that instantly alert a central ESP32 hub. The moment any sensor detects water, the hub fires a relay to close a solenoid valve on your main line — stopping a flood before it spreads.
What You'll Build
You’ll assemble eight Arduino Nano sensor units, each fitted with an NRF24L01 radio, a water sensor, and a rechargeable 18650 cell. These nodes sleep quietly until moisture bridges their probe contacts, then they wake and transmit a wireless alert. The ESP32 hub listens across the network and, on any detection, switches the relay module that controls your existing solenoid shutoff valve. The result is a production‑grade, whole‑home leak defense system you can install in a kitchen under‑sink cabinet, behind a washing machine, or near a geyser for complete peace of mind.
What You'll Learn
- Low‑power wireless communication using NRF24L01 radios and custom packet protocols
- Designing a star‑network topology with a central hub and multiple sleeping sensor nodes
- Integrating a high‑voltage solenoid valve with a microcontroller‑driven relay for real‑world automation
- Hand‑soldering and assembling permanent circuits on PCB prototype boards for field deployment
Kit Contents
| Component | Quantity |
|---|---|
| ESP32 Dev Board | 1 |
| Arduino Nano | 8 |
| Water Sensor | 8 |
| 5V Relay Module | 1 |
| 18650 Cell | 8 |
| TP4056 Module | 8 |
| NRF24L01 | 8 |
| 100nF Caps | 30 |
| PCB Prototype Board | 9 |
| Soldering Iron | 1 |
| Solder Wire | 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
Built for ambitious tinkerers who want a production‑grade wireless sensor network. Ideal for B.Tech ECE/EEE students creating an IoT portfolio, Smart India Hackathon teams needing a reliable multi‑node data‑collection backbone, and engineering enthusiasts from IITs, NITs, VIT, and BITS who demand a system that just works. If you’ve done a basic Arduino project and are ready to master wireless protocols and battery‑optimized code, this is your next step.
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?
The AI companion covers every wiring step, code upload, and troubleshooting scenario. If you hit a snag, just drop a WhatsApp message — our team will help you get the network running, usually within a few hours.
Do I need to solder all eight sensor nodes? Is that manageable for an advanced beginner?
Yes, each sensor node requires soldering the Nano, NRF24L01, battery management, and water sensor onto a PCB prototype board. The kit includes a soldering iron and quality solder wire, and the AI companion provides close‑up soldering guides and wiring diagrams. While the project is demanding, the step‑by‑step instructions break it into repeatable one‑hour sessions you can tackle over a weekend.
How far apart can the sensors be placed from the hub?
In an average Indian 2‑3 BHK apartment, the NRF24L01 radios easily cover all rooms when placed with line‑of‑sight or through one or two interior walls. For larger homes or concrete‑heavy construction, the firmware can be configured to relay messages through intermediate sensor nodes, extending range without additional hardware.
Can I integrate the hub with Home Assistant or other smart home platforms?
Absolutely. The ESP32 hub can be programmed to send MQTT messages over WiFi using the sample code included in the AI companion. This lets you receive leak alerts on your phone, automate other devices, or log sensor data on platforms like Home Assistant, Blynk, or ThingsBoard.
Eight water sensors via ESP-NOW report to hub. Hub triggers solenoid valve shutoff on any detection.
What's in this kit
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.
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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