Structural Health Monitoring SHM Node Kit with ESP32 + LoRa
Structural Health Monitoring SHM Node Kit — Crack Detection with ESP32-S3 & LoRa
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Concrete structures whisper warnings long before visible cracks appear. This kit lets you build a self-contained sensor node that listens to those whispers — capturing 200 Hz vibration signatures with a high-g ADXL377 and an ADXL345, running FFT and a TFLite model on an ESP32-S3, then transmitting alerts via LoRa when crack propagation signatures are detected.
What You'll Build
You'll assemble a field-deployable structural health monitoring node that classifies concrete crack patterns in real time. The waterproof enclosure, solar panel, and dual 18650 Li-ion cells ensure autonomous operation for weeks. The LoRa module relays classification results and raw FFT bins to a gateway up to several kilometres away, making it suitable for bridges, dams, or multi-storey buildings.
What You'll Learn
- Capture dual-axis vibration data at 200 Hz from a high-g and a low-g accelerometer simultaneously
- Apply Fast Fourier Transform (FFT) to extract frequency-domain features from vibration signals
- Deploy a TensorFlow Lite model on ESP32-S3 that distinguishes crack propagation signatures from ambient noise
- Design a solar-battery power system for always-on remote sensing using LoRa radio telemetry
Kit Contents
| Component | Quantity |
|---|---|
| ESP32-S3 Dev Board | 1 |
| ADXL377 200g Accel | 1 |
| ADXL345 Accel | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| RA-02 LoRa | 1 |
| 433MHz Antenna | 1 |
| LM2596 Buck Converter | 1 |
| Solar Panel 6V 2W | 1 |
| 18650 Cell | 2 |
| TP4056 Module | 1 |
| 100nF Caps | 15 |
| PCB Prototype Board | 3 |
| 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
This kit is built for structural engineers, IoT researchers, and disaster resilience teams. It fits directly into Smart India Hackathon projects, MTech theses at IITs and NITs, and field deployments by civil engineering departments. If you are prototyping a SHM system for an infrastructure monitoring startup or need a ready-to-train edge AI platform for concrete crack classification, this kit accelerates your work.
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 identifies issues from component placement to signal noise, and you can reach us on WhatsApp for direct debugging help.
Can I use this kit to monitor bridges or buildings in real-time?
Yes, the solar panel and 18650 cells sustain the node indefinitely outdoors, while LoRa transmits crack alerts up to 5 km (line-of-sight), suitable for remote infrastructure.
What machine learning model is included and how accurate is it?
The TFLite model is pre-trained on concrete crack propagation signatures and achieves over 93% accuracy in lab tests. You can retrain it on your own data using the provided workflow.
Do I need to understand FFT and signal processing to use this kit?
The AI companion walks you through FFT analysis and the codebase, so prior experience helps but is not mandatory — the learning is built into the build.
ADXL377 high-g + ADXL345 at 200Hz on ESP32-S3. FFT + TFLite classifies crack propagation signatures in concrete.
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