hello,
I have a reciever that on his output i get 1khz sound (i can hear it using headphones) - I would like to turn on a simple led when this sound is heard. I also built a highpass\lowpass active filter.. I thought to use xor gate but not sure.
Please help me
thanks
I have a reciever that on his output i get 1khz sound (i can hear it using headphones) - I would like to turn on a simple led when this sound is heard. I also built a highpass\lowpass active filter.. I thought to use xor gate but not sure.
Please help me
thanks