Flood Early Warning Sensor Array
Arduino Flood Early Warning Sensor Array Kit – Multi-Level Water Rise Detection & SMS Alert
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Set up ultrasonic sensors at staggered heights along a riverbank to detect water level rise rate, digitally log data, and trigger an SMS alert via SIM800L when critical thresholds are crossed. This kit transforms a theoretical disaster management concept into a field-deployable prototype, built around the powerful Arduino Mega 2560. From calibrating sensor echo timing to powering the array with 18650 cells, every component is pre-selected for compatibility.
What You'll Build
A four-sensor ultrasonic water level monitoring array that measures water rise across multiple thresholds, logs time-stamped data to a microSD card, displays real-time levels on an OLED screen, and sends automated SMS warnings when water crosses a danger level. You’ll have a self-contained, battery-powered enclosure ready for deployment near rivers, canals, or flood-prone areas.
What You'll Learn
- Calibrate HC-SR04 ultrasonic sensors for varying distances and environmental interference
- Interface a SIM800L GSM module to send SMS alerts with pre-defined messages
- Use a DS3231 real-time clock for accurate data timestamping
- Design a rugged, battery-powered field monitoring system with Li-ion 18650 cells and power management
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | 1 |
| HC-SR04 | 4 |
| SIM800L GSM | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| LM2596 Buck Converter | 1 |
| 0.96in OLED | 1 |
| 18650 Cell | 2 |
| 18650 Holder | 1 |
| TP4056 Module | 1 |
| 1000µF 25V Caps | 3 |
| 100nF Caps | 10 |
| 10kΩ Resistors | 10 |
| Waterproof Enclosure | 1 |
| 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
Environmental engineering researchers, B.Tech ECE/EEE final-year students working on disaster management projects, and professionals prototyping sensor networks for Smart Cities missions. This kit hits the exact needs of institutions like IITs, NITs, and VIT where field-deployable sensor arrays are part of curriculum or hackathon challenges like Smart India Hackathon (Hardware Edition).
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 companion trained on this exact kit, or ping us on WhatsApp for human support. Most builders get unstuck in under 10 minutes.
How do I ensure the sensors remain accurate in monsoon humidity?
The waterproof enclosure protects the electronics, and the HC-SR04 sensors are resilient to moisture. We include extra caps for power stability and instructions on periodic calibration against a reference measurement.
Can I replace the SIM800L with a 4G LTE module for better coverage?
The kit comes with a SIM800L 2G module, which works across most Indian operator networks still supporting 2G. Upgrading to a 4G module would require additional AT command changes and a different power supply. We recommend testing with the included module first, then contact us for guidance.
What power backup does the kit have if the 18650 cells run out?
The dual 18650 cells provide up to 48 hours of continuous monitoring with standard usage. You can extend runtime by adding more cells in parallel or connecting a solar charger to the
Ultrasonic sensors at multiple river bank heights log water level rise rate. SMS alert via SIM800L when threshold crossed.
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.
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