Sound into Light shows

Step 6 Credits and Future Improvements

I couldn't have done this without Tom McGuire and John Harrison

Future Improvements::

1) use filters that can work with potentiometers so the filter can be tuned instead of trying to find the perfect resistors.

2) use a smaller potentiometer on the amplifier output level to control ambient sound sensitivity better

    2.1) put potentiometers on each filter output so that they are all the same level when they reach the arduino. this will assist in implementing a threshold

3) write an easily controllable threshold into the code so that its even more selective for the frequency’s i picked.

     3.1) an led that displays impedance of the pot controlling the threshold

4) i wanted (and still do!!) to find a way to split a laptop wall adapter into + and – voltages so i can stop using batteries.

5) i'm not sure if its possible but maybe a fade based off of amplitude?

Comments

[Myrmidon]

Nice instructable, I was contemplating something similar just to trigger stuff for bass, mid and high end aspects, a VU meter basically. I was just going to use simple RC circuits though. :P

As for the laptop power circuit, look into virtual ground circuits. The basic idea is using a voltage divider and using where the resistors meet, this becomes your virtual ground then you take your + from the top resistor and the - from your bottom resistor. I'v attached an image to give you an idea. Don't rely on these values though, but both resistors and both capacitors must have equal values.

:)