Build a Theremin-Like Instrument with the Arduino Ultrasonic Sound Generator Kit

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

Imagine controlling music with a wave of your hand — no strings, no keys, just air. This kit turns an Arduino Uno and an HC-SR04 ultrasonic sensor into a theremin-style sound generator, where distance determines pitch and an LED bar visualizes your every move. Perfect for science exhibitions, music-tech experiments, or simply impressing friends with a gesture-controlled instrument.

What You'll Build

You’ll assemble a working electronic instrument that responds to hand distance. Hold your palm above the sensor and hear the pitch change instantly — move closer for high notes, further for low. The eight LEDs light up in sequence to show proximity, creating a visual performance alongside the sound.

What You'll Learn

• How ultrasonic distance sensors work and how to read them with Arduino
• Mapping sensor values to audio frequencies using the tone() function
• Building a visual feedback system with multiple LEDs
• Integrating sensor input, audio output, and visual display in a single project

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Ideal for CBSE Class 11-12 students working on physics or electronics projects, B.Tech ECE/EEE first-years exploring sensor integration, and hobbyists preparing for exhibitions like Smart India Hackathon or ATL Tinkering Labs. Also fits IIT/NIT/VIT/BITS mini-project requirements with scope for expansion.

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.