Build Your Own Arcade Controls Forum

Arcade Collecting => Miscellaneous Arcade Talk => Topic started by: Caparo8bit on April 24, 2014, 09:00:40 pm

Title: LED BUTTONS POWERED BY USB ((SOLVED BY MALENKO & NEPHASTH))
Post by: Caparo8bit on April 24, 2014, 09:00:40 pm: Im in the middle of my first project and i might add LED buttons since im using a decased laptop is posible (safe) to power up 6 buttos or more with USB ?
(https://i.imgur.com/hjr7apo.jpg)
Title: Re: LED BUTTONS POWERED BY USB
Post by: Malenko on April 24, 2014, 09:41:00 pm: should be, if in doubt get a powered USB hub
Title: Re: LED BUTTONS POWERED BY USB
Post by: pbj on April 24, 2014, 10:10:38 pm: Safe? Who cares do it anyway.
Title: Re: LED BUTTONS POWERED BY USB
Post by: Caparo8bit on April 24, 2014, 11:04:44 pm: Quote from: Malenko on April 24, 2014, 09:41:00 pm
should be, if in doubt get a powered USB hub
Quote from: Malenko on April 24, 2014, 09:41:00 pm
should be, if in doubt get a powered USB hub
yeah i think im getting a usb pwrd hub they r only $4.50 Thanks ...
Title: Re: LED BUTTONS POWERED BY USB
Post by: Nephasth on April 25, 2014, 12:01:52 am: USB 2.0 has a max output of .5 amps. Assuming you're using all blue LEDs (since that's what you have pictured), 6 of them would have a continuous forward current of .12 amps and a peak forward current of .3 amps. You'll be just fine without a powered USB hub.

Quote from: pbj on April 24, 2014, 10:10:38 pm
Safe? Who cares do it anyway.

Your jeans would beg to differ.
Title: Re: LED BUTTONS POWERED BY USB
Post by: Caparo8bit on April 25, 2014, 05:49:39 pm: Thanks Neph im getting the powered USB for my second project will b using 16 to 18 LED buttons. Thanks to all for your help .
Title: Re: LED BUTTONS POWERED BY USB
Post by: yotsuya on April 25, 2014, 05:57:31 pm: Quote from: Caparo8bit on April 25, 2014, 05:49:39 pm
Thanks Neph im getting the powered USB for my second project will b using 16 to 18 LED buttons. Thanks to all for your help .

For that many buttons, go with an LED controller. :cheers:
Title: Re: LED BUTTONS POWERED BY USB ((SOLVED BY MALENKO & NEPHASTH))
Post by: mike boss on May 10, 2014, 09:54:33 am: This is great info.
I want to power 8 LED buttons for my Punch-Out bartop.
It will be a PC powered project and I was unsure how to do so.

Thanks