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Home › Magazines › 2002 › December › Random Flashing LED

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Random Flashing LED

Published in issue 316, December 2002

Here is a random flashing LED circuit which is economical at just 1 mA while using a minimum number of parts. With two spare gates available in the 4093 (a 2-input Schmitt trigger NAND), a single IC could separately control two random flashing LEDs. A particular advantage of this design is that both the minimum and maximum periods of the flashes may be adjusted, and in this way the degree of randomness itself.

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Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

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