A microphone read frequences. If sound is below, blink a led. If sound is sharpen , blink another led. That is all.
I don't need the full code. I want only a line , wich read frequency...Please help.
The microphone is connected to Analog 0. Max frequency is 20 Mhz. I separe in 2: "<1Mhz" and ">1Mhz"