D0 is input than receive audio signal
in the same input i want to detect 5 frequency .
if the 5 five frequency are in this sequence : 1000Hz 1200Hz 1500Hz 4000Hz 5750Hz , I turn on the led
thanks
sorry for my english
D0 is input than receive audio signal
in the same input i want to detect 5 frequency .
if the 5 five frequency are in this sequence : 1000Hz 1200Hz 1500Hz 4000Hz 5750Hz , I turn on the led
thanks
sorry for my english