hey,
I'm trying to connect a microphone to PIC chip to start a timer but Im a bit unsure of what I'm doing. I've got a circuit which will amplify the signal and then convert it into a square wave, which will then go to the PIC.
I'm wondering if it's ok to use a dynamic microphone as the circuit will be powered by a 9v battery and do I need a pre-amp AND another amp before connecting it to the PIC?
Any other Qs or info would be cool too.
Cheers
I'm trying to connect a microphone to PIC chip to start a timer but Im a bit unsure of what I'm doing. I've got a circuit which will amplify the signal and then convert it into a square wave, which will then go to the PIC.
I'm wondering if it's ok to use a dynamic microphone as the circuit will be powered by a 9v battery and do I need a pre-amp AND another amp before connecting it to the PIC?
Any other Qs or info would be cool too.
Cheers