Multi-Axis Vibration Spectrum Analyser
Build a Real-Time Multi-Axis Vibration Spectrum Analyser with Arduino Portenta H7
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
From identifying bearing faults in industrial motors to monitoring structural vibrations in bridges, this kit lets you build a professional-grade multi-axis vibration spectrum analyser. The Portenta H7's dual-core processor samples three ADXL345 accelerometers at 3.2kHz via an I2C multiplexer, computes FFT on the M7 core, and streams a real-time waterfall spectrogram on the TFT display driven by the M4 core — all while logging timestamped spectra to an SD card.
What You'll Build
A portable, three-channel vibration data logger and real-time spectrum analyser that captures acceleration data up to ±16g per axis, performs 1024-point FFT, and displays a scrolling waterfall plot. You will have a complete instrument you can use for predictive maintenance on pumps, motors, gearboxes, and structural health monitoring tasks.
What You'll Learn
- Configuring high-speed I2C communication using a TCA9548A multiplexer to read three ADXL345 sensors simultaneously.
- Implementing real-time FFT using the CMSIS-DSP library on the Arm Cortex-M7 core.
- Building a circular buffer and waterfall spectrogram rendering on an ILI9341 TFT display using the M4 core.
- Integrating an RTC and SD card for timestamped data logging and offline analysis.
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Portenta H7 | 1 |
| Portenta Breakout Board | 1 |
| ADXL345 Accelerometer | 3 |
| TCA9548A I2C Multiplexer | 1 |
| MicroSD Module | 1 |
| 2.4-inch TFT ILI9341 | 1 |
| DS3231 RTC Module | 1 |
| LM2596 Buck Converter | 1 |
| 4.7kΩ Resistors | 5 |
| 100nF Ceramic Capacitors | 15 |
| DIN Rail Enclosure | 1 |
| 12V 3A Power Supply | 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 designed for final-year B.Tech (ECE/EEE/Mechanical) students building vibration analysis projects, Smart India Hackathon teams solving industrial IoT challenges, and professionals in condition monitoring and predictive maintenance. It is also suitable for researchers at IIT, NIT, and corporate R&D labs needing a portable data acquisition system for experimental modal analysis.
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?
Our AI build companion, trained on this exact project, can guide you step-by-step. If you need additional help, our WhatsApp support team typically responds within 2-3 hours.
Can I use this kit for condition monitoring of industrial machines?
Yes — mount the three ADXL345 sensors on bearing housings or machine frames to capture vibration signatures. The real-time FFT and waterfall display let you identify frequency peaks indicative of imbalance, misalignment, or bearing faults.
Does the kit include software or just hardware?
It comes with pre-written Arduino libraries and example sketches for the Portenta H7, handling mux selection, sensor sampling, FFT computation, display rendering, and SD logging. You can modify the code for your specific application.
What kind of enclosure does it come with?
The kit includes a DIN rail mountable enclosure, which allows you to install the instrument inside a control cabinet for permanent monitoring setups or field use with protection.
Three ADXL345 on TCA9548A mux sampled at 3.2kHz on M7. FFT spectrum stored to SD. M4 drives TFT waterfall.
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