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Electronics Forum / Basics / March 2007How to make a LED flash together with the music BPM
Hi, i was wanting to construct a simple circuit where a led would flash together with a Music BPM. Does anyone knows how it can be done. And what will i need to buy? OK Thanks... > Hi, i was wanting to construct a simple circuit where a led would > flash together with a Music BPM. Does anyone knows how it can be done. > And what will i need to buy? > OK > Thanks... Just a simple idea, so I am not sure but you'd probably need to pass the signal through a Low Pass filter since the beat is at low frequencies of the audio spectrum and then you could feed it to a BJT that controls the current passing through the LED. Regards >Hi, i was wanting to construct a simple circuit where a led would >flash together with a Music BPM. Does anyone knows how it can be done. >And what will i need to buy? >OK >Thanks... Google for "color organ". These usually have 3 or more frequency bands, but you will get the idea. Just build the low band if you only want the bass beat. Best regards, Bob Masta D A Q A R T A Data AcQuisition And Real-Time Analysis www.daqarta.com Scope, Spectrum, Spectrogram, Signal Generator Science with your sound card! |
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