A stereo VU meter built with an Arduino Nano and two NeoPixel LED rings.

A simple Arduino Morse code machine with a button, LED, and a buzzer that translates your input into English while you are typing.

Build a real, playable theremin music instrument. The theremin is played using two antennas without physical contact.

A simple sound monitoring system using a microphone and a small amplifier with LM386.

Library & sketches to control the TEA5767 FM radio module, using Arduino and an I2C LCD display. Release 02.00.00 is an arduino library.

This trick teaches you how to use Micro SD/SD card for Arduino and speaker.

Type Morse code on Arduino and display it on your computer's monitor.

A simple and small music box with customizable tunes. Parts involved? Arduino Micro, buzzer and a switch.

Create a Bluetooth MIDI controller with an Arduino 101.