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Arcade Collecting => Miscellaneous Arcade Talk => Topic started by: Corbo on January 03, 2012, 04:21:35 pm

Title: Powering a 5v DC illuminated button
Post by: Corbo on January 03, 2012, 04:21:35 pm

Hi,

Can anyone suggest a simple way to illuminate 2 LED push buttons from a PC motherboard, without using an external board like an LED WIZ?

E.g. is there a simple hack using a molex cable?

Thanks for any suggestions in advance.

Title: Re: Powering a 5v DC illuminated button
Post by: Nephasth on January 03, 2012, 04:58:03 pm

If you want them on all the time when the computer is on, just tap into a 5V (red) wire from an unused connector on you computer's power supply. Don't forget your ground (black wire from the PSU).

Title: Re: Powering a 5v DC illuminated button
Post by: Corbo on January 04, 2012, 08:06:05 am

Yes on all the time is all I need.

I'll have a play with the red and black cables from a molex connector, sounds simple enough!  Thanks for your help.

Title: Re: Powering a 5v DC illuminated button
Post by: Malenko on January 04, 2012, 10:18:43 am

just remember red is 5v yellow is 12v, if you hook it up to the 12v it'll be REALLY BRIGHT for about a second. Either black however will work.

Title: Re: Powering a 5v DC illuminated button
Post by: Corbo on January 04, 2012, 03:00:21 pm

Interesting, my 8" LCD is 12V.  Think I can use the same trick to eliminate using the DC plug I use at the moment?

Title: Re: Powering a 5v DC illuminated button
Post by: Malenko on January 04, 2012, 03:09:35 pm

Quote from: Corbo on January 04, 2012, 03:00:21 pm

Interesting, my 8" LCD is 12V.  Think I can use the same trick to eliminate using the DC plug I use at the moment?

(http://forum.arcadecontrols.com/index.php?action=dlattach;topic=103207.0;attach=176872;image)

see the right side of the marquee

Title: Re: Powering a 5v DC illuminated button
Post by: Corbo on January 04, 2012, 04:34:18 pm

Nice, You're running that off a hacked hard drive power cable?

Title: Re: Powering a 5v DC illuminated button
Post by: Corbo on January 05, 2012, 04:45:41 am

That worked a treat thanks, and in the process it has solved a problem I had with a wavering picture so there was a problem with my original DC adapter.

Just 1 plug for it all is far neater.  Thanks for your time.

Title: Re: Powering a 5v DC illuminated button
Post by: Malenko on January 09, 2012, 11:28:08 am

Quote from: Corbo on January 04, 2012, 04:34:18 pm

Nice, You're running that off a hacked hard drive power cable?

yup the LCD and the LEDs on the panel