I’m finishing up my computer table i’ve been working on and one of the final touches is making LEDs sync to the speakers. I have some pics of my computer too. This project took me about 15 minutes and was free because i had the parts laying around.
Step 1: Materials
-TIP31 transistor
-4 LEDs or 12v led strips
-wire
-on/off switch
-3.5mm jacks (1 male and 1 female)
-solder
Tools:
-soldering iron
-wire strippers/cutters
Step 2: Build the circuit
Here is the circuit i used. For the 12v power supply i found a spare molex connector from the computer power supply and cut it. I used a multi meter to find which 2 was the positive and negative. (for me the yellow was positive and the black wire beside it was negative). Be careful when doing this and make sure the computer is off to prevent the risk of electric shock. (im not responsible if you get shocked or hurt). If you have any questions just comment below.
For more detail: LEDs sync to music (with pics of my awesome computer case mod)
