Okay, did some searching and could not come across the information I was looking for.
I currently have a PS3 stick wired with a Cthulhu board by Toodles. I have been planning to add the button light up mod since it was a PS2 stick, but never got the time or patience to do so, but now that it is wired up for PS3 it is only lacking art and the lights to be complete so I figured to try to get at least the button light up done tomorrow and Saturday.
I can not find any of my 3 battery pack case things anywhere, but then I thought, it is a PS3 stick, with USB out only, and into powered USBs, so is there any way for me to simply tie the button light up mod into the voltage and the ground of the Cthulhu board? I was only plannign to run 1.5 or 3v to the LEDs, they are ridiculously bright either way, and will be adding resistors to it corresponding to the light up mods instructions.
My main question is can I safely tie into the power of the PCB, or is that a risk of frying the PCB? What would be the process if I do decide to go this route? Or would it simply be attach power attach ground.