M5Stack® Microphone UnitLM393 Sound Sensor Built-In Omni-Directional Microphone Audio Sample/Record Voice Switch

Description Microphone Unit is a sound sensor with a built in omni directional electret microphone The signal is amplified and output by microphone preamplifier max4466 The amplifier can effectively suppress power supply noise and common mode noise and the output signal has high sound recovery and can be used in noisy environments The unit can not only output analog signals but also output digital level signals The built in LM393 double voltage comparator can set the comparison voltage threshold by adjusting 10K adjustable resistance The sensor is very suitable for acoustic electrical conversion audio recording sampling FFT acoustic feedback voice switch and other projects Features Audio record sampleBuilt in microphone preamplifier MAX4466Omnidirectional 52dB sensitivityDigital output and analog signalBuilt in dual independent precision voltage comparator and adjustable resistor threshold adjustableDevelopment platform Arduin UIFlow Blocky Python HY2 0 4P interface2X LEGO™ compatible holesPackage Included 1x Microphone Unit1x Grove CableApplications FFT Spectrum DisplayAudio Sample RecordVoice SwitchSpecification ResourcesParameterMicrophone sensitivity SNR52dB 40dBOutput SignalAnalog digitalWorking Voltage3 3VNet weight5gGross weight16gProduct Size32 24 8mmPackage Size67 53 12mmDatasheet MAX4466LM393Schematic click to openPin Map M5Core PORT BGPIO26GPIO365VGNDMic Unit26365VGNDExample 1 Arduin IDETo get complete code please click here