Music Dancing LEDs – DIY Project

If you are a music lover then you can enhance your music experience by making a Music Dancing LEDs project all by yourself if you have a little bit knowledge about electronics.

The circuit comprises of 3 different bands Red,Green and Blue for high,medium and low frequencies respectively. It is a simple circuit which you can assemble on a bread board easily by following the given circuit diagram and buying the respective components for it. I have tested this circuit by myself by assembling it on a vero board so it is 100% working

The above image is a stereo version of this project which you can make by simply making two same circuits and connecting the individual audio pins to both of them. Also the 3.5 mm jack into the ipod is a two pin connector from which you can connect your headphone or speakers along with the circuit to listen to the music too.

Components Required:

1. 3x 100 ohm resistors
2. 1x 180 ohm resistors
3. 1x 270 ohm resistors
4. 2x 1k ohm resistors
5. 4x 2.2k ohm resistors
6. 2x 10k ohm resistors
7. 1x 0.047 uF capacitor
8. 1x 0.01 uF capacitor
9. 1x 0.47 uF capacitor
10. 1x 1 uF capacitor
11. 1x 10 uF capacitor
12. 1x 1N4148 diode
13. 1x 2N2222A, 2N3904 or equivalent NPN transistor
14. 3x 2N2907A, 2N3906 or equivalent PNP transistor
15. 6x LED (2x Red, 2x Green, 2x Blue recommended)
16. 9v Battery
17. 3.5 mm stereo Audio wire
18. 3 pin header (for audio input)

If you are making a stereo version then buy another set of all these components for it too except the battery and audio jack.

Circuit Diagram:

This circuit is a mono version ,both audio inputs are wired together in the above image. For stereo version build another same circuit and connect audio 1 only to the first circuit and audio 2 only to the second circuit.

Connection to the ipod/mp3 player is via a disassembled stereo headphone wire. You will usually find three conductors in those wire – two of them carry the audio signal, and the shield/braid is the ground connection. Use a 3 pin header to make the connection to the breadboard easier.

Have fun Doing It Yourself and Once you complete this circuit you can enclose it into a nice little case, so you can take this mini light show with you anywhere. Great for outdoor activities!