Electret mic + OpAmp
Takes the output of an Electret Mic, amplifies the signal and passes the output into an Analogue Input or a headphone jack.
|
This circuit uses an LM385 Dual OpAmp IC to increase the signal strength from an Electret Mic. All told, it's a very simple amp, and a great starting point for countless hours of tinkering. Almost all parts on the board come in most Arduino Starter Kits. |
FilesFritzing Files |
