Esp32 audio input Smart door bell and noise meter using fft on esp32 I2s microphone mems module omnidirectional
Smart door bell and noise meter using FFT on ESP32 - IoT Assistant
Esp32 noise fft gnd sck connection vdd d32 3v Inmp441 mems i2s omnidirectional microphone module — pmd way Esp32 i2s mems