No more explosions

1#include <Servo.h>
2
3Servo myservo;
4int smoke = A0;                              //smoke  sensor to arduino pin A0
5int buzzer = 9;                              //buzzer  to arduino pin 9
6int sensorThreshold = 65;                    //minimun sensor  activation threshold
7int motorPin = 4;                            //motor to  arduino pin 4
8
9void setup () {
10  pinMode(buzzer, OUTPUT);                   //buzzer  data is set as OUTPUT 
11  pinMode(smoke, INPUT);                     //sensor  data is set as INPUT 
12  Serial.begin (9600);
13  myservo.attach(11);                        //servo  to arduino pin 13
14  pinMode(motorPin, OUTPUT);                 //motor is set  as OUTPUT
15}
16void loop() {
17
18  int analogSensor = analogRead(smoke);      //the  analogue number obtained is the value detected by the sensor 
19  if (analogSensor  >= sensorThreshold)       //the value detected by the sensor must be higher of the  threshold 
20  {
21    myservo.write(90);                       //servo moves  to 90°
22    digitalWrite(motorPin, HIGH );           //motor turns on 
23    tone(buzzer,  250, 2500);                 //buzzer sounds at a frequency of 250 Hz for 2,5 seconds  
24    delay(8000);                             //the servo remains stationary  for 8 seconds
25    digitalWrite(motorPin, LOW );            //motor turns off
26  }
27  else
28  {
29    myservo.write(0);                        //the servo  remains stationary at 0°
30    noTone(buzzer);                          //buzzer  doesn't emit sounds
31  }
32  Serial.println(analogSensor);
33
34  delay(50);
35}

1#include <Servo.h>
2
3Servo myservo;
4int smoke = A0;                              //smoke
5  sensor to arduino pin A0
6int buzzer = 9;                              //buzzer
7  to arduino pin 9
8int sensorThreshold = 65;                    //minimun sensor
9  activation threshold
10int motorPin = 4;                            //motor to
11  arduino pin 4
12
13void setup () {
14  pinMode(buzzer, OUTPUT);                   //buzzer
15  data is set as OUTPUT 
16  pinMode(smoke, INPUT);                     //sensor
17  data is set as INPUT 
18  Serial.begin (9600);
19  myservo.attach(11);                        //servo
20  to arduino pin 13
21  pinMode(motorPin, OUTPUT);                 //motor is set
22  as OUTPUT
23}
24void loop() {
25
26  int analogSensor = analogRead(smoke);      //the
27  analogue number obtained is the value detected by the sensor 
28  if (analogSensor
29  >= sensorThreshold)       //the value detected by the sensor must be higher of the
30  threshold 
31  {
32    myservo.write(90);                       //servo moves
33  to 90°
34    digitalWrite(motorPin, HIGH );           //motor turns on 
35    tone(buzzer,
36  250, 2500);                 //buzzer sounds at a frequency of 250 Hz for 2,5 seconds
37  
38    delay(8000);                             //the servo remains stationary
39  for 8 seconds
40    digitalWrite(motorPin, LOW );            //motor turns off
41
42  }
43  else
44  {
45    myservo.write(0);                        //the servo
46  remains stationary at 0°
47    noTone(buzzer);                          //buzzer
48  doesn't emit sounds
49  }
50  Serial.println(analogSensor);
51
52  delay(50);
53}