Light Sensor Activated Alarm Pillow

// Create variables for the pins we'll be using

int lightSensor = A9;
int buzzer = A5;
int motor = A7;
int RGB_red = 12;
int RGB_green = 13;
int RGB_blue = 14;

// Set the frequency and threshold

int mainFrequency = 740; //F#4
int tempo = 200;
int threshold = 5;

void setup()
{
  int x;

  // Initialize the pins we'll be using
  
  pinMode(lightSensor, INPUT);
  pinMode(buzzer, OUTPUT);
  pinMode(motor, OUTPUT);
  pinMode(RGB_red, OUTPUT);
  pinMode(RGB_green, OUTPUT);
  pinMode(RGB_blue, OUTPUT);

  // Initialize the serial monitor

  Serial.begin(9600);
}

void loop()
{
  int sensorValue;
  int frequency;


  int x,lightLevel,brightness;

  // Read the sensor value (will be 0 to 255):

  lightLevel = analogRead(lightSensor);

  // Print out the sensor reading:

  Serial.print("light level: ");
  Serial.print(lightLevel);
  Serial.print(" threshold: ");
  Serial.print(threshold);
  Serial.print(" sensor value: ");
  Serial.println(sensorValue);


 if (lightLevel > threshold) // If it is lighter than the threshold:
  {
     digitalWrite(RGB_red, HIGH);
     digitalWrite(RGB_green, HIGH);
     digitalWrite(RGB_blue, HIGH);
     digitalWrite(motor, HIGH);
     tone(buzzer,mainFrequency);
     delay(tempo);

     digitalWrite(RGB_red, LOW);
     digitalWrite(RGB_green, LOW);
     digitalWrite(RGB_blue, LOW);
     digitalWrite(motor, LOW);
     noTone(buzzer);
      delay(tempo*2);

     digitalWrite(RGB_red, HIGH);
     digitalWrite(RGB_green, HIGH);
     digitalWrite(RGB_blue, HIGH);
     digitalWrite(motor, HIGH);
     tone(buzzer,mainFrequency);
     delay(tempo);

     digitalWrite(RGB_red, LOW);
     digitalWrite(RGB_green, LOW);
     digitalWrite(RGB_blue, LOW);
     digitalWrite(motor, LOW);
     noTone(buzzer);
     delay(tempo*2);


    
  }
  else
  {
    noTone(buzzer);
     
  }
}