SparkFun Electret Microphone Breakout

This small break­out board cou­ples an Elec­tret micro­phone (100Hz–10kHz) with a 60x mic pre­am­pli­fi­er to ampli­fy the sounds of voice, claps, door knocks or any sounds loud enough to be picked up by a microcontroller’s ana­log-to-dig­i­tal con­vert­er. Each break­out comes ful­ly assem­bled and works from 2.7V up to 5.5V.The Elec­tret Mic Break­out trans­lates ampli­tude (not vol­ume) by cap­tur­ing sound waves between two con­duct­ing plates (one a vibrat­ing diaphragm and the oth­er fixed) in the micro­phone and con­vert­ing them into elec­tri­cal waves. These elec­tri­cal sig­nals are then ampli­fied and picked up by your microcontroller’s ADC.Doc­u­ments:Schemat­icEagle FilesHookup GuideDatasheet (OPA344)Datasheet (Mic)GitHub