How to use MSGEQ7 like virtual microphone

Projects Programming
1

Hello all, i would like to use MSGEQ7 output signals like signal from microphone module.

This code working on sound sensor, but i would like to make it with MSGEQ7 chip with same result.

#define LEDstripW 10
#define LEDstripR 9
#define LEDstripG 8
#define LEDstripB 7


void setup()
{
  pinMode(11,INPUT); //SIG of the Parallax Sound Impact Sensor connected to Digital Pin 7
  pinMode(LEDstripW, OUTPUT);
  pinMode(LEDstripR, OUTPUT);
  pinMode(LEDstripG, OUTPUT);
  pinMode(LEDstripB, OUTPUT);

}

//this function will make the LED dim once the Parallax Sound Impact Sensor sends a 1 signal, and then return to it’s original brightness.
void loop()
{
  boolean soundstate = digitalRead(11);
  if (soundstate == 1) {
         analogWrite(LEDstripW, 100);
         delay(100);
  }
  else{
  
    analogWrite(LEDstripW,0);
  
  }
  {
  boolean soundstate = digitalRead(11);
  if (soundstate == 1) {
         analogWrite(LEDstripR, 255);
         delay(100);
  }
  else{
  
    analogWrite(LEDstripR,0);
  }
  }
  {
  boolean soundstate = digitalRead(11);
  if (soundstate == 1) {
         analogWrite(LEDstripG, 255);
         delay(100);
  }
  else{
  
    analogWrite(LEDstripG,0);
  }
  }
  {
  boolean soundstate = digitalRead(11);
  if (soundstate == 1) {
         analogWrite(LEDstripB, 255);
         delay(100);
  }
  else{
  
    analogWrite(LEDstripB,0);
  }
  }
 }

if anyone can help me with it i will be glad.

2

Most of what this program does, that is breaking down the analog input into bands, the MSGEQ7 already does. Please spend some time explaining what you are wanting to do in more detail. What do you want to do? Why do you want to use the MSGEQ7 chip? What is the microphone module you will be using? Are you wanting help with the schematic or the program or both? What do you have so far?

3

Hi, thanks for your interest, in this code you can see this one led blinking every time when bandpass filter sends signal to arduino but in upper sketch each one led blink only once in time period,this work on first sketch, in first time when is peak reached first led will blink in second time when is peak reached will blink second led in third time when is peak reached will blink third led, in fourht time when is peak reached will blink fourth led, i would like apply this with MSGEQ7 chip, because i wanna use one form for signall proccesing, not microphone and MSGEQ7 together.

int analogPin = 0; // MSGEQ7 OUT
int strobePin = 4; // MSGEQ7 STROBE
int resetPin = 3; // MSGEQ7 RESET
int spectrumValue[7];
int i = 0;
 
// MSGEQ7 OUT pin produces values around 50-80
// when there is no input, so use this value to
// filter out a lot of the chaff.
int filterValue = 988;
 
// LED pins connected to the PWM pins on the Arduino
 
int ledPinW = 10;
int ledPinR = 9;
int ledPinG = 8;
int ledPinB = 7;
 
void setup()
{
  
  // Read from MSGEQ7 OUT
  pinMode(analogPin, INPUT);
  // Write to MSGEQ7 STROBE and RESET
  pinMode(strobePin, OUTPUT);
  pinMode(resetPin, OUTPUT);
 
  // Set analogPin's reference voltage
  analogReference(DEFAULT); // 5V
 
  // Set startup values for pins
  digitalWrite(resetPin, LOW);
  digitalWrite(strobePin, HIGH);
}
 
void loop()
{
  // Set reset pin low to enable strobe
  digitalWrite(resetPin, HIGH);
  digitalWrite(resetPin, LOW);
 
  // Get all 7 spectrum values from the MSGEQ7
 for (int i = 0; i < 7; i++)
  
  {
    digitalWrite(strobePin, LOW);
    delayMicroseconds(1000); // Allow output to settle
 
    spectrumValue[i] = analogRead(analogPin);
 
    // Constrain any value above 1023 or below filterValue
    spectrumValue[i] = constrain(spectrumValue[i], filterValue, 511);
 
 
    // Remap the value to a number between 0 and 255
    spectrumValue[i] = map(spectrumValue[i], filterValue, 511, 0, 255);
 
    // Remove serial stuff after debugging
    
    digitalWrite(strobePin, HIGH);
   }
   
   // Write the PWM values to the LEDs
   // I find that with three LEDs, these three spectrum values work the best
   
   analogWrite(ledPinW, spectrumValue[4]);
}

The code working for only one output, code can be used for 6 outputs like a spectral analyzer but i do not need this.

4

Problem is solved