E30 Sound Sensor Module with Arduino | Sheekar Banerjee

1const int OUT_PIN = 8; //sensor output pin to Arduino Digital 8 pin
2const
3  int SAMPLE_TIME = 10;
4unsigned long millisCurrent;
5unsigned long millisLast
6  = 0;
7unsigned long millisElapsed = 0;
8int sampleBufferValue = 0;
9void setup()
10  {
11 Serial.begin(9600); //Sensor streaming 9600 bits of data per second
12}
13void
14  loop() {
15 millisCurrent = millis();
16 millisElapsed = millisCurrent - millisLast;
17
18  if (digitalRead(OUT_PIN) == LOW) {
19   sampleBufferValue++;
20 }
21 if (millisElapsed
22  > SAMPLE_TIME) {
23   Serial.println(sampleBufferValue);
24   sampleBufferValue
25  = 0;
26   millisLast = millisCurrent;
27 }
28}

1const int OUT_PIN = 8; //sensor output pin to Arduino Digital 8 pin
2const  int SAMPLE_TIME = 10;
3unsigned long millisCurrent;
4unsigned long millisLast  = 0;
5unsigned long millisElapsed = 0;
6int sampleBufferValue = 0;
7void setup()  {
8 Serial.begin(9600); //Sensor streaming 9600 bits of data per second
9}
10void  loop() {
11 millisCurrent = millis();
12 millisElapsed = millisCurrent - millisLast;
13  if (digitalRead(OUT_PIN) == LOW) {
14   sampleBufferValue++;
15 }
16 if (millisElapsed  > SAMPLE_TIME) {
17   Serial.println(sampleBufferValue);
18   sampleBufferValue  = 0;
19   millisLast = millisCurrent;
20 }
21}