Example Code for Arduino-Sound Intensity Reading
Last revision 2026/01/15
Read the analog sound intensity value from the DFR0034 Analog Sound Sensor and print it to the serial monitor.
Wiring Diagram

Other Preparation Work
Connect the DFR0034 Analog Sound Sensor to the Analog 0 pin of the Arduino board.
Sample Code
void setup()
{
Serial.begin(9600); // open serial port, set the baud rate to 9600 bps
}
void loop()
{
int val;
val=analogRead(0); //connect mic sensor to Analog 0
Serial.println(val,DEC);//print the sound value to serial
delay(100);
}
Result
Open the Serial monitor, Baud rate: 9600.

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