Using the sound sensor module to detect surrounding sound, this sound sensor can only detect if have voice or not, can not measure sound volume, level of sensitivity is adjustable.
2, Parts and Devices in this project:
1 x arduino UNO
1 x Sound Sensor Module
1 x Red LED
1 x USB cable
3, Electric circuit:
4, sample code:
Speaking to the sound sensor module, or put the sound sensor on a horizontal table, thendrum on the table with your fingers, the Red LED will flicker at a frequency, when surroundings is quiet, then red LED light went out.
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