Microphone Sound Detection Sensor, Keyes

$5.95 inc. GST

Microphone Sound Detection Sensor, Keyes

8 in stock

SKU: SEN7-700 Category: Tags: , ,


This modules has a high sensitivity microphone sound detection circuit, with adjustable gain control. Two outputs are provided for sound detection:
– AO, analog output, real-time output voltage signal of the microphone
– DO, when the sound intensity reaches a certain threshold, the output goes high

Please note that this is NOT an audio amplifier! It is meant to detect sounds about a configurable level.



  • Operating voltage 5V
  • 3mm mounting screw holes
  • 1 x Analog Output (A0)
  • 1 x Digital threshold level output
  • High sensitive microphone and high sensitivity circuit
  • LED Comparator output indicator
  • Standard Pin spacing: 2.54mm
  • Size 35mm x 15mm

Documentation, Sample Code and Resources

The following sample Arduino code can be used to turn a LED on when a sound above a certain level is detected.

int Led=13;     //define LED as interface
int buttonpin=3 //Define D0 Sensor as Interface
int val;        //define numeric variables val

void setup()
    // Define LED as output interface
    //Define D0 Sensor as output Interface

void loop()
    //digital interface will be assigned a value of 3 to read val
    //When the light sensor detects a signal is interrupted, LED flashes

Package Includes

1 x Sound Detection board with microphone (as shown in picture)

Additional information

Weight 10 g


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