Hey everyone, I've been scouring the internet looking for some purple LEDs (3mm to be exact). The only ones I can seem to find are UV ones, which don't seem to give enough visible light to be worth it. Here's a picture of the purple cathodes I mounted to the back of my monitor: As you can see to the right of the picture, there are orange LEDs in he front panel of my case, which I want to change (again ) to purple this time. I see pink ones, but I'm not too sure how pink they'll be. I don't want them to be a girly pink, but more of a violet pink. Something like this: I'm also looking for matching LED fans as well, and possibly matching SMD lights to mod my G15. Can anyone shed some light on where I could source anything like this?
RGB leds and a controller set to purple? Or BlinkM Leds and an Arduino board - pricey solution though. Of course this wont work for LED swapping on the boards, but it will work for case lighting.
I suppose, but I was looking for just a single unit. However it would be kind of cool to be able to switch between colours. Can anyone suggest some really good bright RGB LEDs (preferably 3mm, but I guess 5mm is fine too) and a way that I can control all of them at once, powered by a 12v power source?
Enjoy them while they last.... in a few weeks, they'll be blue... unless they've sorted out some of the manufacturing problems purple LEDs have had in the past. Incidentally, where did you get them from... you have a link? Just in case they don't fade.. then I'll be buying some too That does look damned cool! [edit] I had pink ones in my last rig... they look like this.
Someone doesn't read the posts lol stuartwood89 - I get my LEDs on ebay from China - always dirt cheap.
I bought a load of 3mm purple LEDs a few years back so that I could change the LED in my gamecube. I still have the guy I got them off's business card, I'll try and dig up the addres of the shop I got them from for you. ---Edit--- The site was http://www.ultraleds.co.uk but the only purple ones they have now are 5mm red/blue/purple tri colour LEDs (3k MCD). You could always email them and see if they can get you some.
I definately don't want that happening. I remember seeing this picture in the Pimp your Mod thread and thinking it was cool, I may just go with pink after all, how pink are they? I know photographs can lie sometimes. That's where I got my orange ones, led-world-2007 or something the name was. Was very impressed with the quality, packaging and delivery time. I would, but it looks a little too close to 'gamer' blue, which is what was in my case originally (does that surprise you?), then again, I suppose purple could be mistaken for blue also. Thanks for the link! I'll take a look later when I get chance.
I dunno if i've seen a turqoise pc before, but we've all seen heaps of light blue pc's. Purple lighting is alot more unique and way cooler. +1 for using RGB leds. You'd probably want to wire them all up in parrallel strings of 3 in series stuartwood89. You can then experiment with the current on a string of 3, using a couple of vr's, until you get the exact color you want. Once you've figured out the correct resistance combo, you can wire them all up using cheap fixed resistors.
I'm not too knowledgable in this particular field though. Can you get any colour you want with these things? I would need a circuit diagram and a good source of parts if I was to try and pull this off. Thanks for your help so far guys, really helpful!
This site has only one purple led reviewed, but it might still come in handy: http://ledmuseum.home.att.net/ledpur.htm Edit: Nevermind. Check the violet section!
In theory, any color viewable to the eye can be produced using red, blue & green, but leds aren't good enough to produce the full spectrum of each of these colors. Not that important though, they still do a damn good job so heaps of colors can be made. You actually wouldn't be able to wire them up in series strings of three actually not with individual control of the colors anyway. But here's a quick wiring diagram for hooking up vr's to a single rgb led, just so you can figure out what the required values are: Mixing red & blue will probably get you what you want, you probably won't need to add any green, it depends on the actual colors produced by the led. Just be damn carefull to not overpower the led like this. You could add a limiting resistor at the 12v connection which would be safer...
What if I wanted to control all of the LEDs from one variable resistor. I would want them all to be powered from the same source and hopefully come from the same circuit. For example, my front door panel holds 5 LEDs, I may also want quite a few around the inside of my case to light it up (will they be bright enough?), also a few going out of the case to behind the monitor, all controlled by one single variable resistor (or more if I have to). I'm just throwing out ideas here but would it be possible for all the lights to all change together, in sync, depending on an external factor such as heat, or even for them to cycle through some colours repeatedly?
That's different, you'd need some sort of controller. There are controllers and circuits out there, where you could have the led's cycle trhough colors, dance to the audio, change depending on heat, etc. You've gotta decide what you want to do.
Thanks for the info, but they do look a little expensive. I'm kind of psyched on RGB LEDs now anyway, thanks to Langer and mvagusta.
Never really thought about adding a backlight to my monitor to achieve a similar effect as those philips TVs. The purple looks really good, however I would be worried about all the pretty colours putting me of my fraggin!
And no credit to me for suggesting them? I wouldn't bother with RGB LEDs and just go with dual colour Red/Blue ones (3 pin). Also what mvagusta said about only being able to do that for one LED at a time: couldn't you connect the LEDs (treating each colour as a seperate string of LEDs) as you normally would with resistors and then add potentiometers in series to dim each colour as desired?
