Automatic no contact hand sanitiser

1// include Servo and New ping libraries
2#include <Servo.h>
3#include<NewPing.h>
4
5//   declaration of variables
6int trigPin = 9;
7int echoPin = 10;
8float v = 343;
9float   d = 0;
10float pingTime = 0;
11 
12int servoPin = 2;
13int servoPos = 0;
14   
15int buzzPin = 5;
16 
17Servo myServo;// create an object called myServo using   the servo library
18NewPing sonar(trigPin,echoPin);// create an object called sonar   using the New ping library, and mention the parameters as the trigger and echo pins
19   
20void setup()
21{   
22  Serial.begin(9600);// initialize our serial monitor,   to see the distane from a target to the distance sensor
23  
24  // set pin modes   for the declareed pins
25  pinMode(trigPin,OUTPUT);
26  pinMode(echoPin,INPUT);
27   pinMode(buzzPin,OUTPUT);
28  
29  myServo.attach(servoPin);// attach servo in   the Arduino world to the pin which it is connected to
30  myServo.write(servoPos);//   make the servo turn to zero degrees after Arduino is powerd up
31}
32 
33void   loop()
34{
35   d = sonar.ping_cm();// get the distance from the ultrasonic distance   sensor in cm
36//  digitalWrite(trigPin,HIGH);
37//  delayMicroseconds(10);
38//   digitalWrite(trigPin,LOW);
39//  delayMicroseconds(10);
40//  pingTime = pulseIn(echoPin,HIGH);
41//   pingTime /= 10000;
42//  d = pingTime*343/2;
43  delay(500);
44  // check is   the distance is less than 15cm. If so, set the servo position to 120 degrees, and   make the buzzer beep
45  if(d < 15){
46    servoPos = 120;
47    digitalWrite(buzzPin,HIGH);
48     delay(100);
49    digitalWrite(buzzPin,LOW);
50  }
51  // if distance is   greater than 15cm, keep the servo position to 0 degrees
52  else{
53  servoPos   = 0;
54  }
55  digitalWrite(buzzPin,LOW); 
56  myServo.write(servoPos);// write   the end position of the servo
57  Serial.println(d);// print the distance from   the ultrasonic distance sensor to the serial monitor
58}

1// include Servo and New ping libraries
2#include <Servo.h>
3#include<NewPing.h>
4
5//  declaration of variables
6int trigPin = 9;
7int echoPin = 10;
8float v = 343;
9float  d = 0;
10float pingTime = 0;
11 
12int servoPin = 2;
13int servoPos = 0;
14  
15int buzzPin = 5;
16 
17Servo myServo;// create an object called myServo using  the servo library
18NewPing sonar(trigPin,echoPin);// create an object called sonar  using the New ping library, and mention the parameters as the trigger and echo pins
19  
20void setup()
21{   
22  Serial.begin(9600);// initialize our serial monitor,  to see the distane from a target to the distance sensor
23  
24  // set pin modes  for the declareed pins
25  pinMode(trigPin,OUTPUT);
26  pinMode(echoPin,INPUT);
27  pinMode(buzzPin,OUTPUT);
28  
29  myServo.attach(servoPin);// attach servo in  the Arduino world to the pin which it is connected to
30  myServo.write(servoPos);//  make the servo turn to zero degrees after Arduino is powerd up
31}
32 
33void  loop()
34{
35   d = sonar.ping_cm();// get the distance from the ultrasonic distance  sensor in cm
36//  digitalWrite(trigPin,HIGH);
37//  delayMicroseconds(10);
38//  digitalWrite(trigPin,LOW);
39//  delayMicroseconds(10);
40//  pingTime = pulseIn(echoPin,HIGH);
41//  pingTime /= 10000;
42//  d = pingTime*343/2;
43  delay(500);
44  // check is  the distance is less than 15cm. If so, set the servo position to 120 degrees, and  make the buzzer beep
45  if(d < 15){
46    servoPos = 120;
47    digitalWrite(buzzPin,HIGH);
48    delay(100);
49    digitalWrite(buzzPin,LOW);
50  }
51  // if distance is  greater than 15cm, keep the servo position to 0 degrees
52  else{
53  servoPos  = 0;
54  }
55  digitalWrite(buzzPin,LOW); 
56  myServo.write(servoPos);// write  the end position of the servo
57  Serial.println(d);// print the distance from  the ultrasonic distance sensor to the serial monitor
58}