Super Basic MSGEQ7 7 Band Spectrum Analyzer Module Project!

1#include <AudioAnalyzer.h>
2
3#define msgRST 12
4#define msgStrobe  13
5#define msgAnalog 0
6Analyzer Audio = Analyzer(10, 11, 0); //Strobe pin  ->10  RST pin ->11 Analog Pin ->0
7
8
9int LEDpins[7] = {2, 3, 4, 5, 6, 7,  8};
10int FreqVal[7] = {63, 160, 400, 1000, 2500, 6250, 16000};
11
12void setup()
13{
14  Serial.begin(57600);	//Init the baudrate
15  Audio.Init();         //Init module
16
17  for (int x = 0; x < 7; x++) {
18    pinMode(LEDpins[x], OUTPUT);
19  }
20  pinMode(msgRST,  OUTPUT);
21  pinMode(msgStrobe, OUTPUT);
22}
23
24
25void loop()
26{
27  Audio.ReadFreq(FreqVal);      //return 7 value of 7 bands pass filter
28  //Frequency(Hz):63  160  400  1K  2.5K  6.25K  16K
29  //FreqVal[7]:      0    1    2    3    4    5    6
30  digitalWrite(msgRST, HIGH);
31  delay(20);
32  digitalWrite(msgRST, LOW);
33
34  for (int x = 0; x < 7; x++)
35  {
36    digitalWrite(msgStrobe, LOW);
37    delayMicroseconds(20);
38    int spectrumRead = analogRead(0);
39    int PWMvalue = map(spectrumRead, 0,  1024, 0, 255);
40    if (PWMvalue < 75)
41      PWMvalue = PWMvalue / 100;
42    analogWrite(LEDpins[x], PWMvalue);
43    digitalWrite(msgStrobe, HIGH);
44
45    
46    Serial.print(max((FreqVal[x] - 100), 0));     //Transmit the DC value  of the seven bands
47    if (x < 6)  Serial.print(",");
48    else Serial.println();
49  }
50
51
52
53}
54

1#include <AudioAnalyzer.h>
2
3#define msgRST 12
4#define msgStrobe
5  13
6#define msgAnalog 0
7Analyzer Audio = Analyzer(10, 11, 0); //Strobe pin
8  ->10  RST pin ->11 Analog Pin ->0
9
10
11int LEDpins[7] = {2, 3, 4, 5, 6, 7,
12  8};
13int FreqVal[7] = {63, 160, 400, 1000, 2500, 6250, 16000};
14
15void setup()
16{
17
18  Serial.begin(57600);	//Init the baudrate
19  Audio.Init();         //Init module
20
21
22  for (int x = 0; x < 7; x++) {
23    pinMode(LEDpins[x], OUTPUT);
24  }
25  pinMode(msgRST,
26  OUTPUT);
27  pinMode(msgStrobe, OUTPUT);
28}
29
30
31void loop()
32{
33  Audio.ReadFreq(FreqVal);
34      //return 7 value of 7 bands pass filter
35  //Frequency(Hz):63  160  400
36  1K  2.5K  6.25K  16K
37  //FreqVal[7]:      0    1    2    3    4    5    6
38
39  digitalWrite(msgRST, HIGH);
40  delay(20);
41  digitalWrite(msgRST, LOW);
42
43
44  for (int x = 0; x < 7; x++)
45  {
46    digitalWrite(msgStrobe, LOW);
47    delayMicroseconds(20);
48
49    int spectrumRead = analogRead(0);
50    int PWMvalue = map(spectrumRead, 0,
51  1024, 0, 255);
52    if (PWMvalue < 75)
53      PWMvalue = PWMvalue / 100;
54
55    analogWrite(LEDpins[x], PWMvalue);
56    digitalWrite(msgStrobe, HIGH);
57
58
59    
60    Serial.print(max((FreqVal[x] - 100), 0));     //Transmit the DC value
61  of the seven bands
62    if (x < 6)  Serial.print(",");
63    else Serial.println();
64
65  }
66
67
68
69}
70