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

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

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

Live performance oriented sequencer / arpeggiator for multiple synths control.

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.

WS2812 LEDs in drums!

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