Leds only during music, possible??

[tibor28]

Hello. Before few days I did a psp sound mod without the LM386 chip but i didnt like how the leds stayed ON all the time even though the music was not playing. So i bought the LM386 chip and connected everything but still same thing. The leds stay on all the time. On youtube i saw many videos where the leds flash just during sound. How to do this? Thx

[tibor28]

plz anyone??

[CrkPyro]

a logic inverter should work. search the ti website they have lots of logic devices. basically what a logic inverter does is takes a digital signal (+5V=1, 0V=0) and inverts it (+5V=0, 0V=1). I used 5V as an example some logic chips work off less and if I'm not mistaken the logic 1 output of a logic inverter is about the chip's supply voltage

[K.A.O.]

just do a direct connection. solder the positive led connection to the positive connection of the speaker and the negative to the negative.

[Flying_MashedPotatoes]

or put a switch in your psp to be able to control if they are on or off

this type of switch: http://www.leeselectronic.com/catalog/images/365.JPG

mine mounted like this

[Modded Matt]

to properly do what you are asking you need to purchase a psp sound board.  with this you can select if you want them allways on or allways off, sound on or sound off.

[kink192]

just go for a software switch hooked up to the note button to turn em on and off, not hard

[SmaRkieS]

Possible for me without using any software and switches, but this post is already late, I already wrapped my PSP with Skin I cant show you what's inside and the wiring of my PSP, it's direct connection, no other power amp.

check my video, sorry for the bad quality, I'm only using WebCam, the sound is bit out of sync.
psp speaker mod

[ryan0]

This would require an i2c serial communication setup between the psp and a controller chip for the leds,then a plugin would would have to be coded for the psp to tell the chip when music was playing via the serial port.