Step 4Fire it up!
Once it's tested and working, you'll find that it's a real conversation piece at your next party or dance.
You can slip it inside a shirt pocket with the perfboard on the outside. The mic will pick up the sound from around you and the LEDs will 'perform' to it.
A final touch - cut short pieces of a clear or translucent drinking straw to fit over the tops of the LEDs. This will spread the light to give you the 'bar of light' effect.
The last image is my test rig for this project.
A video of the Junior Musicator in action here.
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But this one is real portable!
Im making this one...
Cheers!
And check out my Arduino powered Level Display too!
Hope they're what you're looking for!
Super tutorial by the way! :)