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Re: [AVR-Chat] RFP - can someone design an LED candle for me?

2004-03-25 by Wagner Lipnharski

David VanHorn wrote:
>>        I have worked with products that were so realistic that I
>> swear they were actual flames (at a distance) but I was told they
>> were not. I'm still not sure if I believe them.
>
> Coding in a strange attractor might give more realistic flicker.
> I think that flame height and intensity is probably a strange
> attractor. Similar to water dripping. It's not random, nor regular.


What I would do is just put together a real candle and a photo-sensor as a
LDR or even a photo-transistor and ADC the light changes from the candle.
After one minute of recording, even with a 4 bits ADC @ 10sps, you would
have enough information to store inside any microcontroller to repeat the
"real thing" flickering.

Of course that to have a good "real flickering" the experiment should be
done in am ambient that produces air movement and causes flickering.


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