Subject:
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Re: Home-made Light Bricks
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 27 Jan 2000 22:57:22 GMT
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Viewed:
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1238 times
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To prove this, stick a fan in front of a digital clock... watch through the
fan blades as you turn it on and as it slows to a stop... the fan will act as
a strobe light and you will see which segments actually are on at the same
time... pretty neat trick for the easily amused like me :)
Dave
In lugnet.robotics, "Tilman Sporkert" <tilman@activesw.com> writes:
> the LED, you can generate a series of bright flashes. That's how your digital
> clock with LED display works - the different segments of the digits are • actually
> never on at the same time. Each segment just flashes very brightly for a short
> time. Your eyes are too slow to notice that, and it appears as if the LED is • on
> constantly.
>
> Tilman
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Message is in Reply To:
 | | RE: Home-made Light Bricks
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| The big advantage of using LEDs is that you can control two lights from a single RCX output. As long as you don't want them to light at the same time. They also use less power than light bulbs. Now what we really need is a de-multiplexer, to drive (...) (25 years ago, 27-Jan-00, to lugnet.robotics)
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