Hello :), Im still working on my fastled led suit.

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Hello :),

Im still working on my fastled led suit. I have now made a print with a microphone, a op amp, and a envelop detector for 50hz. The analog data of that print will be send to my Arduino.
Now I have seen some functions here which have bpm. Does anyone can give me advice how to convert this analog data to bpm, or make other effects with this analog data? I don’t want to use FFT.

Thanks!

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I’ll help however I can… and I’m curious what you’re using for the 50Hz envelope detector?

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Neat. That project uses FFT though, which I would (also) love to avoid if possible; it eats a great deal of the available CPU power.

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@Mark_Kriegsman We use a diode, resistor and a compensator. See photo: http://puu.sh/mwUVL/66a915261b.png

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Ah, sure. What values are you using for components to get your 50Hz detector?

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@Mark_Kriegsman
The resistor = 51k and the compensator = 10 uf

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Thank you! (And I think you mean “capacitor”.)

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@Mark_Kriegsman You’re welcome. I’m playing around little bit DiscoStrobe is very nice also DemoReel 100 with juggle and bpm are really cool effects. Hope to get them sync with music.

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Jeremy Blum made a great Tutorial (not FastLED)
Schematic:

Also the Tutorial is worth watching