Organ Box Kit with Arduino Uno – Build Your Own Hand-Crank Music Machine

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

Turn a simple crank and watch your room fill with a custom melody. This Organ Box Kit uses a magnet on the hand crank and an A3144 Hall effect sensor to count rotations; the Arduino Uno then fires a passive buzzer at just the right moment to play musical notes. It’s a delightful way for young makers to blend motion, magnetism, and code into a real working music box.

What You'll Build

A portable, battery-powered music box that plays a tune every time you turn the crank — faster cranking speeds up the melody, exactly like a street organ. You’ll mount the crank and magnet, wire the sensor and buzzer, and load the Arduino with a tune you can change anytime. Once complete, the whole project can sit on a shelf, ready to charm anyone who walks by.

What You'll Learn

• How a Hall Effect sensor detects a magnetic field and converts motion into electrical pulses
• Programming Arduino to count pulses from a sensor using digital interrupts
• Generating precise musical notes with the tone() function and a passive buzzer
• Building a real-world electronics project on a breadboard without soldering

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Kids aged 5-15 and their parents or mentors — especially inside India’s ATL Tinkering Labs, CBSE Class 6–10 STEM classrooms, and home hobbyist setups. No prior coding or electronics experience is needed; the circuit snaps together on a breadboard, and the Arduino code is pre-written and easy to tweak. It’s a perfect project for first-time makers who love music and want to see how technology can turn motion into melody.

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.