This project is for making a 32-band audio (music) frequency spectrum analyzer / visualizer using Arduino.

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

This is a another version of a music LED strip using Arduino Nano and an Electret Mic/Max4466 Amplifier.

Live performance oriented sequencer / arpeggiator for multiple synths control.

Infinity mirror VU meter music equalizer is inspired by our infinity mirror clock project and we present it to our precious viewers.

It's a door bell with 48 melodies. It's a reverse engineering project. The initial project was made with 6802 microprocessor!

An internet radio player and DLNA audio renderer all in one.

A simple FM radio with a display that shows the frequency and audio amplifier.

Using my cable TV remote, I can control the volume and select either TV or radio input to my hi-fi system with this little box.

Use your TV's IR remote to control the volume and mute of separate speakers without using the speaker's remote.

Here I've made a playing time counter for these cartridges.