Arduino Mega Cavitation Impedance Analyzer Kit
Ultrasonic Cavitation Impedance Analyzer Kit with Arduino Mega
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
Drive a 40kHz ultrasonic transducer into cavitation and capture the subtle impedance shifts that reveal bubble formation - all with a bench-grade instrument you build yourself. This kit transforms an Arduino Mega into a dedicated cavitation monitor, complete with a precision ADC front-end, programmable DDS signal generation, and real-time data logging. Whether you are characterizing ultrasonic cleaning baths or building a research-grade process monitor, the project delivers lab-level insight from a single PCB.
What You'll Build
A standalone instrument that excites the 40kHz transducer with a clean sine wave from the AD9833, then reads the transducer's current and voltage responses through a dual-LM358 differential amplifier chain. The ADS1115 16-bit ADC captures the signals, and the Arduino Mega computes impedance magnitude in real time. Results are displayed on the 1.8-inch TFT and stamped with DS3231 RTC timestamps before being stored on a microSD card. The system can trigger an alert when impedance dips indicate cavitation onset.
What You'll Learn
- Generate precision sine waves with the AD9833 DDS module and control it via SPI from the Arduino Mega
- Design a differential measurement front-end using two LM358 op-amps to condition high-frequency transducer signals
- Sample high-resolution data from the ADS1115 and calculate impedance magnitude and phase angle in firmware
- Implement cycle-accurate data logging with the DS3231 RTC and visualize results on a TFT display
Kit Contents
| Component | Quantity |
|---|---|
| Arduino Mega 2560 | 1 |
| Ultrasonic Transducer 40kHz | 1 |
| ADS1115 ADC | 1 |
| LM358 Op-Amp | 2 |
| AD9833 Signal Gen | 1 |
| DS3231 RTC | 1 |
| MicroSD Module | 1 |
| 1.8in TFT ST7735 | 1 |
| 100k? Resistors | 5 |
| 100nF Caps | 15 |
| PCB Prototype Board | 3 |
| 12V 3A PSU | 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 B.Tech ECE and EEE students preparing final-year projects, Smart India Hackathon teams building industrial monitoring prototypes, and research enthusiasts working with ultrasonic processing. The signal chain and measurement algorithms align with curriculum at IITs, NITs, VIT, and BITS Pilani, making it a strong choice for learners who have already mastered basic Arduino and op-amp circuits and are ready to apply instrumentation engineering principles.
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 launch the AI companion, which walks you through every connection and calibration step. You can also send a photo of your setup on WhatsApp and our team will respond within hours.
Can this system monitor real ultrasonic cleaning baths?
Yes. Once you attach the 40kHz transducer to the bath wall and calibrate the impedance baseline, the kit reliably detects the drop that indicates cavitation onset. It works for both laboratory and small industrial baths.
Do I need an oscilloscope to verify the AD9833 signal?
The TFT displays the sampled waveform from the ADS1115, letting you confirm frequency and amplitude without an external scope. For initial debugging, a 20MHz or better oscilloscope is helpful but not mandatory.
What range of impedance values can the kit measure?
The differential amplifier gain is set so that the ADS1115 accurately resolves transducer impedance from tens of ohms up to about 2 k? at 40kHz, covering typical cleaning bath transducer characteristics.
Parking - High-frequency piezo transducer drives ultrasonic bath. ADS1115 monitors cavitation onset by impedance shift.
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