Here I present you an Arduino powered stereo VU meter with Pattern, Color, Brightness and Audio sensitivity control options. You can add Bluetooth audio connection feature to this unit for $2 (Guide - https://youtu.be/zQQgRBhW5QU). Also, you can make this unit as an amazing corner lamp (Guide - https://youtu.be/Jp4_6qAXYSc). Enjoy!.
Watch the full build guide here
