I got a Aura "Ineractor" thingy, which takes an audio input and amplifies the bass for use with a subwoofer on a backpack. (wtf?) Its got a power button, which seems to output more or less power. The filter control seems to set the cutoff frequency. Anyways, im kinda n00b at this but it would be awesome if I could somehow use the output to the sub, but power LED's instead. I hooked it up like that but the LED's get overpowered and pop. My friend tried with x-mas lights and it worked good... but LED's are DC and x-mas lights are AC. wtf? So am i doing something dumb, and if not, how do i make a voltage regulation circuit so that the LED's never get more than 4.5v? Thanks!
first off u would need to find out how much power out put the port u want to connect the led's to has.. then you will need to work out what type of resistor you would need to make the LED work
why not just make a bargraph of led's and set it up to measure the RMS of the line (not using this thing at all..) try LM3914N http://www.turbokeu.com/myprojects/voltmon.htm
well... because i want my LED's to dance to the music. that and im broke... i got like 4$ for this project
i had one of these backpacks, was awsome, always used to play half life with just the crowbar for giggles (was great hitting something like the fish, made ur eyes wobble!). ultra gimmic but for £30 an awsome geek party peice, might bring that outa perant's loft for the next LAN .
Well if im thinking correctly, its going to output a lot of voltage, and little to no current.... but i cant remember if im thinking amps correctly.
No it lights up the LED's, REALLY bright. thats why they pop So i just need a circuit that will limit the power to theml.
*sigh* The voltage does that.... Edit: want to test this? Ok, take a rheobus from a normal fan controller....put like a 50 ohm resistor on it, turn it down all the way and then turn it up slowly.
