I just purchased this: http://www.quasarelectronics.com/cpm003.htm -
It is an electret mic/preamp combo. I have 2 questions about interfacing it.
Firstly, the documentation states that it wants "mains filtered 12v DC, fused" to operate.
If I plug the Arduino into the mains using a 12v adapter, then use the Vin pin of the Arduino to the + of the modules power input, and then the - of the modules power input to Arduino ground, will that do the trick?
Secondly, I will be hooking up the output of this unit to speakers, which is straightforward; however, I would also like to use the output level to use as a sensor to an Arduino ADC pin.
WHat might I have to do to convert this to a usable signal to plug into an Arduino pin?