5pcs Microphone Noise Decibel Sound Sensor Measurement Module 3p / 4p Interface
Brick Type | Sensor Brick |
Brick Interface | 3PIN |
Brick Power Supply | 5V |
Board Size | 33 × 14 × 1.6mm |
Parameter | Min. | Typical | Max. | Unit |
Working voltage | 4.5 | 5 | 5.5 | VDC |
Digital output voltageVCC=5V | 0 | - | 5 | V |
Working current5V | - | 260 | - | uA |
Frequency range | 100 | - | 10000 | Hz |
Sensitivity | - | -50 | - | dB |
Connect S port of electronic brick of microphone to A0 port of for , and we will use the following program to read the analog value. When the value exceeds the threshold, the LED indicator will flash.
2const int thresholdvalue=400; //The threshold to turn the led on
3void setup() {
4pinMode(ledPin, OUTPUT);
5}
6void loop() {
7 int sensorValue = analogRead(A0); //use A0 to read the electrical signal
8 if(sensorValue>thresholdvalue)
9digitalWrite(ledPin,HIGH); //if the value read from A0 is larger than 400,then light the LED
10 delay(200);
11 digitalWrite(ledPin,LOW);
12}
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2023-03-03
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2023-03-03
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