Mic Module
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Features:
- Operating voltage: 3.3 to 5VDC
- PIN: VCC = 5V, GND = 0V, DO = digital output from module
- Sound detected, DO = LOW, on board LED is ON
- No Sound detected, DO = HIGH, on board LED is OFF
- Turn the on board potentiometer clockwise will make module sensitive to sound
- Turn the on board potentiometer counter clockwise make the module less sensitive to sound
Mic Module are usually one per module 4.He writes the names on p. 5V Vcc pin plugs eat GND GND pin. The other two pins AO and DO pins are made of the connection pin number defined in the code section. A0 pin to analog, the DO pin is defined as the input pin reading digitally.
For sound detection Module has two outputs:
- AO, analog output, real-time output voltage signal of the microphone
- DO, when the sound intensity reaches a certain threshold, the output high and low signal
The threshold-sensitivity can be adjusted via potentiometer on the sensor
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