Yeah you know what im talking about, you’re listening to your favorite tunes, and you would like some light to blink on the rhythm, i mean who doesn’t ? 🙂 We’ve all been trough this phase. So what can you do ? well the solution its pretty simple you solder a transistor together with a switch, some LED’s and a stereo jack connector and its done. Yeah its for beginners. Here is the parts list:

  • 4 LEDs (any collor)
  • P2 plug
  • 2 position switch
  • TIP31 component
  • Box to put all the stuff (if you want)
  • Soldering iron and accessories
  • Cable

Here is the schematic:

Music Blinking LED’s schematic

And here is the circuit in action:
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Music Blinking LED’s :

if you feel like you need additional info check the author’s page