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LED Circuit needed

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astro90734

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LED Circuit needed
« on: November 02, 2012, 07:11:00 PM »
I'm looking for a LED circuit, either transistor or IC. Battery operated or wall wart operated, around 3-6 VDC. I want to operate a LED so that it brightens slowly (1-2 seconds) and fades the same amount of time. If the brightening and fading are variable, that would be good to, but not required.  Needed for my 'Time Machine' sculptur

astro90734

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Re: LED Circuit needed
« Reply #1 on: November 03, 2012, 01:11:34 PM »
I found several on the internet:
      newbielink:http://www.youtube.com/watch?v=qLAi7hkDuYw&feature=related [nonactive]
      newbielink:http://www.instructables.com/id/ThrobbingFading-LED-with-555-Timer/ [nonactive]
      newbielink:http://www.555-timer-circuits.com/up-down-fading-led.html [nonactive]