After playing around with some greeting card modules to modulate sound onto a LED i found out that the driver part of said greeting card modules are not audio drivers but PWM drivers (oscilloscope confirmed).
This made me wonder if normal PWM controllers could be used to drive more power full LEDs.
My idea was to just remove the potentiometer and feed in music from Aux at that point.
Is there a chance of this working?
Update: I just tryed if it works and sadly it dosent, LED gets modulated somewhat but there is not audio to recover from it afterward, its only noise.
It might work if the six I put is digital, as PWM is a digital signal. It is my understanding that aux jacks are analog, and this require a waveform signal. If you drive a PWM signal into an analog aux jack it would sound broadly like static with a regular interval.
But if you’ve got the parts, just try it.
no i dont try to drive into aux, i try to drive from aux