Hello peeps! been a while since i posted on here!
anyway, i'm about to start work on a project based on the tutorial about led colour mixing with 3 potentiometers )this one http://www.arduino.cc/en/Tutorial/LEDColorMixerWith3Potentiometers ).
basically i intend on taking an audio signal and split it into bass, middle and high frequencies using some simple filter circuits. with these three frequencies connected to the analogue inputs instead of the potentiometers, i hope to drive the rgb led in time with the music, like an old colour organ.
has anyone tried this sort of thing before? i havent got the parts yet, but i'm not sure if i'll need to amplify the audio signal with an LM386 ic.
cheers,
bod.