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2 Responses to “Turning on/off lights by whistling (Cortex M4 @ 80FFTs/sec)”
Definitely the right way, but not the only way. Has been done before, Check this out.
http://befinitiv.wordpress.com/2012/04/01/control-your-home-devices-by-whistling/
He is doing his FFT based detection on a Linux PC coz he is using a Attiny to control the lights.
Will try it out with my TI Staunchpad one of these days.
“The project is obviously open hardware/source”
…except for his algorithms he used to actually detect the whistling :(
To prevent “bad quality copies that may appear later on dx-like websites.”