M5Stack Microphone Unit (LM393)

• M5Stack Microphone Unit (LM393)
• Offers two LEGO compatible holes
• Built-in Omni-directional electret microphone
• Provides digital output and analog signal
• Features omnidirectional, 52dB sensitivity
• Development platform: Arduino, UIFlow (Blocky, Python)

The M5Stack Microphone Unit (LM393) is a sound sensor with a built-in Omni-directional electret microphone. The signal is amplified and output by microphone preamplifier max4466.

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.

Applications

• FFT Spectrum Display
• Audio Sample/Record
• Voice Switch