Subject:
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RE: Homemade LED Bricks
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 12 Nov 1999 00:32:12 GMT
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Original-From:
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David Johnston <djohnston@tinet.#spamless#ie>
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Viewed:
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597 times
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> Connect the LED through an
> appropriate resistor to a 2x4 electric plate and glue the electric plate to
> the bottom of the brick.
not being an electronic engineer, what is "appropriate"?
D.
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Message has 2 Replies:
 | | Re: Homemade LED Bricks
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| David Johnston <lego-robotics@crynwr.com> wrote in message news:LOBBJCENKNHFLCK...inet.ie... (...) I'd say 330 Ohm 1/4 Watt. (25 years ago, 12-Nov-99, to lugnet.robotics)
| | | Re: Homemade LED Bricks
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| Hi all, I've seen a lot of answers regarding the calculations for the resistor values in this thread. If you want to be completely accurate, you have to include the correct voltage drop across the LED for calculating the right resistor. For most LED (...) (25 years ago, 12-Nov-99, to lugnet.robotics)
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Message is in Reply To:
| | Homemade LED Bricks
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| Hi all, I like the Mindstorms gear a lot, but I've always felt a proper lookin robot needs lights, preferably multi-coloured and blinking. Unfortunately all the Mindstorms kit has is a single light sensor. So I've decided to build my own lights. (...) (25 years ago, 12-Nov-99, to lugnet.robotics)
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