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How would someone go about rapidly turning lights on and off? Answered


Back in October, before I knew about the awesomeness of Instructables, (AKA "The best website ever,") I was trying to make some spooky ambiance for Halloween by having some lights with red color gels turn on and off every half-minute-or-so inside the house, along with some screaming, chainsaw sounds, etc. I attempted to figure out how to do this by asking on Yahoo Answers, and... well.. read it yourself to get the full picture. Realize that one answer was amazingly vague, another simply answered by what I already tried doing, and the community-voted-best answer was joking!

So, I'm a bit curious, but lets pretend it's back in October. How would someone go about turning lights on or off every 30 seconds?

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steveastrouk
steveastrouk

Best Answer 10 years ago

The trick is to make the lamps flicker randomnly, one good, but noisy way, is to pass the lamp current through fluorescent lamp starters.

Steve

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orksecurity
orksecurity

Answer 10 years ago

Yep, that's a classic approach to flickering an incandescent bulb... but the querant is asking for a 30-second cycle, not 1/3-second.

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steveastrouk
steveastrouk

Answer 10 years ago

I know, but that's easy. A 555, an optotriac and a real triac will do it.

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Adum24
Adum24

10 years ago

You could use a microcontroller, like Arduino, but it may not work with incandescent light bulbs.

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steveastrouk
steveastrouk

Answer 10 years ago

Yes, random is harder to do for sure.