Bring Studio VU Meter Magic to Your Desk with Arduino Uno and a 10-LED Bar Graph

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

Watch sound come alive. This kit lets you build a beautiful, bouncing LED display that reacts to music, your voice, or any ambient sound - exactly like the VU meters found in vintage recording studios. The MAX9814 microphone picks up audio with remarkable clarity, the LM3914 drives 10 LEDs in a classic dot or bar mode, and the Arduino Uno orchestrates the entire visual rhythm.

What You'll Build

You'll assemble a working analogue-style volume unit meter on a 400-point breadboard. The 10 coloured LEDs light up sequentially to show sound amplitude: a soft hum moves the first few LEDs, while a loud clap sends the whole bar graph leaping. Once built, you can place it next to a speaker, use it as a voice-reactive art piece, or demo it in a school science exhibition to explain how audio equipment measures signal strength.

What You'll Learn

• Interface the MAX9814 microphone amplifier with Arduino to read sound levels
• Configure the LM3914 LED driver in bar or dot mode for real-time display
• Calibrate a VU meter using reference voltages and resistors
• Build a functional audio visualisation circuit entirely on a breadboard

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Students aged 5-15 who love music and electronics can build this as their first audio project. It's a perfect fit for ATL Tinkering Labs, CBSE Class 6-10 science exhibitions, and hobby clubs where learning by doing matters. Even beginners with no soldering experience succeed because everything plugs straight into a breadboard, following our clear visual guide.

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.