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KY-038 sound sensor module (digital threshold alarm input) projects

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Illustration of the IoT noise monitoring unit with the microphone sensor and the live decibel dashboard.
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IoT Noise Pollution Monitoring System

ESP32 + MAX4466 microphone sensor nodes measuring decibel levels, streamed to a cloud dashboard with a live dB map, trend gra...

ESP32 DevKit microcontroller (WiFi 802.11 b/g/n + dual-core 240 MHz) MAX4466 microphone amplifier module (adjustable gain + analog output) KY-038 sound sensor module (digital threshold alarm input)
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