Piezo Vibration sensor as blow sensor to run DC motor

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Hi!..thank you!..i figured out the problem, it was because of wrong resistor value.. :stuck_out_tongue:

But I am encountering another problem.

This is my code:

const int motorPin = 3;
const int piezo = A0;  // the piezo is connected to analog pin 0


int sensorReading = 0;      // variable to store the value read from the sensor pin
int sensorMax = 0;
int sensorMin = 1023;
int threshold;


void setup()
{

 pinMode(motorPin, OUTPUT);
  Serial.begin(57600);       // use the serial port

//CALIBRATION
  digitalWrite(3, HIGH);
  while (millis() < 3000)
  {
    threshold = analogRead(piezo);

    // record the maximum sensor value
    if (threshold > sensorMax)
    {  
      sensorMax = threshold;
    }
    if (threshold < sensorMin)
    {
      sensorMin = threshold;
    }

  }

  // signal the end of the calibration period
  digitalWrite(3, LOW);
  threshold = sensorMax;
}


void loop()
{
  // read the sensor and store it in the variable sensorReading:
  sensorReading = analogRead(piezo);    

  

  //if within range..run motor
  if ((sensorReading >= threshold) || (sensorReading <= sensorMin))
  {
    Serial.println(sensorReading);
    digitalWrite (motorPin,HIGH);
    delay (1000);
    digitalWrite (motorPin, LOW);
  }

  delay(2000);
}

In this, the motor runs whenever the sensor is within the range specified. But me blowing the sensor and the motor running is not in synced. I am new to coding and stuffs, and I am not able to comprehend what modification needs to be done.