MSGEQ7 blinking lights code

int analogPin = 0;
int strobePin = 2;
int resetPin = 4;
int spectrumValue[7];

int filterValue = 170;

int ledPinR = 9;
int ledPinG = 10;
int ledPinB = 11;

void setup()
{
  Serial.begin(9600);
  pinMode(analogPin, INPUT);
  pinMode(strobePin, OUTPUT);
  pinMode(resetPin, OUTPUT);

  analogReference(DEFAULT);

  digitalWrite(resetPin, LOW);
  digitalWrite(strobePin, HIGH);
}

void loop()
{
  digitalWrite(resetPin, HIGH);
  digitalWrite(resetPin, LOW);

  for (int i = 0; i < 7; i++)
  {
    digitalWrite(strobePin, LOW);
    delayMicroseconds(45);

    spectrumValue[i] = analogRead(analogPin);

    spectrumValue[i] = constrain(spectrumValue[i], filterValue, 1023);

    spectrumValue[i] = map(spectrumValue[i], filterValue, 1023, 0, 255);

    Serial.print(spectrumValue[i]);
    Serial.print(" ");
    digitalWrite(strobePin, HIGH);
  }

  Serial.println();

  analogWrite(ledPinR, spectrumValue[1]);
  analogWrite(ledPinG, spectrumValue[4]);
  analogWrite(ledPinB, spectrumValue[6]);
}