LED Sound Visualizer

1//Use Sparkfun's Sound Detector Guide to Create a Sound Visualizer
2
3//  Define the Pin connections
4#define PIN_GATE_IN 2
5#define IRQ_GATE_IN  0
6#define  PIN_LED_OUT 13
7#define PIN_ANALOG_IN A0
8
9void soundISR()
10{
11  int  pin_val;
12
13  pin_val = digitalRead(PIN_GATE_IN); 
14  digitalWrite(PIN_LED_OUT,  pin_val);
15}
16
17void setup()
18{
19  Serial.begin(9600); //Starts Newline  Baud Connection
20
21  pinMode(PIN_LED_OUT, OUTPUT); //Setting builtin LED for  the SOUND detector as OUTPUT
22
23  pinMode(PIN_GATE_IN, INPUT); //Setting the  Gate Pin as input
24  attachInterrupt(IRQ_GATE_IN, soundISR, CHANGE);
25
26//Set  LED Pins as OUTPUT
27  pinMode(5, OUTPUT);
28  pinMode(4, OUTPUT);
29  pinMode(3,  OUTPUT);
30}
31
32void loop()
33{
34//Sets the LEDs to OFF
35  digitalWrite(5,  LOW);
36  digitalWrite(4, LOW);
37  digitalWrite(3, LOW);
38  
39  int value;
40
41  value = analogRead(PIN_ANALOG_IN);
42
43  Serial.println("Volume Value: ");
44
45  if ((value>=10) && (value <=20))
46  {
47    digitalWrite(5, HIGH);
48    Serial.print(value);
49    Serial.println("LOW VOLUME");
50  }
51  else if ( (value > 20) && (value  <= 30) )
52  {
53    digitalWrite(4, HIGH);
54    digitalWrite(5, HIGH);
55    Serial.print(value);
56    Serial.println("MEDIUM VOLUME");
57  }
58  else  if (value > 30)
59  {
60    digitalWrite(3, HIGH);
61    digitalWrite(4, HIGH);
62    digitalWrite(5, HIGH);
63    Serial.print(value);
64    Serial.println("HIGH  VOLUME");
65  }
66
67  else {
68    Serial.println("LITTLE/NO VOLUME DETECTED");
69  }
70
71  
72  delay(1000);
73}
74

1//Use Sparkfun's Sound Detector Guide to Create a Sound Visualizer
2
3//
4  Define the Pin connections
5#define PIN_GATE_IN 2
6#define IRQ_GATE_IN  0
7#define
8  PIN_LED_OUT 13
9#define PIN_ANALOG_IN A0
10
11void soundISR()
12{
13  int
14  pin_val;
15
16  pin_val = digitalRead(PIN_GATE_IN); 
17  digitalWrite(PIN_LED_OUT,
18  pin_val);
19}
20
21void setup()
22{
23  Serial.begin(9600); //Starts Newline
24  Baud Connection
25
26  pinMode(PIN_LED_OUT, OUTPUT); //Setting builtin LED for
27  the SOUND detector as OUTPUT
28
29  pinMode(PIN_GATE_IN, INPUT); //Setting the
30  Gate Pin as input
31  attachInterrupt(IRQ_GATE_IN, soundISR, CHANGE);
32
33//Set
34  LED Pins as OUTPUT
35  pinMode(5, OUTPUT);
36  pinMode(4, OUTPUT);
37  pinMode(3,
38  OUTPUT);
39}
40
41void loop()
42{
43//Sets the LEDs to OFF
44  digitalWrite(5,
45  LOW);
46  digitalWrite(4, LOW);
47  digitalWrite(3, LOW);
48  
49  int value;
50
51
52  value = analogRead(PIN_ANALOG_IN);
53
54  Serial.println("Volume Value: ");
55
56
57  if ((value>=10) && (value <=20))
58  {
59    digitalWrite(5, HIGH);
60    Serial.print(value);
61
62    Serial.println("LOW VOLUME");
63  }
64  else if ( (value > 20) && (value
65  <= 30) )
66  {
67    digitalWrite(4, HIGH);
68    digitalWrite(5, HIGH);
69
70    Serial.print(value);
71    Serial.println("MEDIUM VOLUME");
72  }
73  else
74  if (value > 30)
75  {
76    digitalWrite(3, HIGH);
77    digitalWrite(4, HIGH);
78
79    digitalWrite(5, HIGH);
80    Serial.print(value);
81    Serial.println("HIGH
82  VOLUME");
83  }
84
85  else {
86    Serial.println("LITTLE/NO VOLUME DETECTED");
87
88  }
89
90  
91  delay(1000);
92}
93