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Hi guys, I'm doing an LED mod for my girlfriend's PSP, adding sound reactive LEDs to the back. I've done mods before, but I've never worked with LEDs, but after doing some research, I know how to get them to react with the sound, and come on, but the things I need help with are:How do I get it so that they don't just come on, but gradually over a period of 2 seconds or so brighten up, and then when the power is turned off, over the same period, dim down to off?I'm also going to set it up so it switches from one colour to the other (I have two sets of LED's) but I can't seem to find an appropriate timerAnd lastly where can I get a opaque plastic ring to replace the metal one on the back?Thanks in advance for all your help!
whats wrong with using a capasitor to let the lights dim on and off? just take a capasitor and hook it too the positive power wire. then on the positive pin of the LED add a 100 ohm resister and then just attatch the two together. and wire the other side normally.it should work for the dim... as for the sound reactive part, if you do that capacitor mo you'll have to wire in the speakers power after the resistor on the LED.and if you hook it all up right you should get sound reactive LED's and LED that dim on/off with the psp's power.PS: you should be able to power the LED's from the 5v power source under near the memory stick slot. (I believe it's the first resister nearest to the edge of the motherboard. (Correct me if I'm wrong))