Arduino Mega Water Tank Level Monitor Kit – Ultrasonic Cavitation Sensing

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Build a high-precision water tank level monitor that uses ultrasonic cavitation physics instead of simple echo ranging. This advanced kit lets you drive a 40kHz transducer with an AD9833 signal generator, then sample the impedance shift via an ADS1115 ADC to detect cavitation onset—giving you a robust, non-contact measurement of water depth.

What You'll Build

You’ll assemble a complete ultrasonic cavitation sensing system on a PCB prototype board. The circuit excites an ultrasonic transducer to create a cavitation field in the tank; when the water level changes, the transducer’s impedance shifts at cavitation threshold, which the ADS1115 reads and logs to a microSD card with an RTC timestamp. The 1.8-inch TFT displays real-time level and status. The result is a logger-ready tank monitor usable in rural water storage projects, agricultural automation, or B.Tech capstone demonstrations.

What You'll Learn

• How to configure an AD9833 DDS chip to generate a clean 40kHz sine wave for ultrasonic drive.
• Analog front-end design with LM358 op-amps to amplify and filter the transducer’s response.
• Reading differential ADC values from an ADS1115 to detect subtle impedance changes at cavitation onset.
• Soldering and assembling a mixed-signal circuit on a prototype board with proper grounding and decoupling.

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is designed for final-year B.Tech ECE and EEE students working on instrumentation projects or Smart India Hackathon prototypes. It’s also an excellent choice for research scholars investigating non-contact sensing methods, and for serious hobbyists who want to move beyond simple Arduino tutorials into mixed-signal design.

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.

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.