Social Distancing hand wash dispenser

This project lets you keep your hands clean and your sanity maintainnned

Oct 23, 2020

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human welfare

Components and supplies

Ultrasonic Sensor - HC-SR04 (Generic)

PIR Sensor, 7 m

Arduino UNO

DC Motor, 12 V

LED Light Bulb, Frosted GLS

Project description

Code

Social Distancing hand wash dispenser

arduino

This is a simple circuit made of two main components:- am ultrasonic sensor and a PIR and of course an arduino. This is a simple yet ingenious way to keep your hands clean in an outdoor place while keeping your sanity maintained

1int pir=0;
2int sensor=0;
3long readUltrasonicDistance(int triggerPin,  int echoPin)
4{
5  pinMode(triggerPin, OUTPUT);//Clear the trigger
6digitalWrite(triggerPin,  LOW);
7  delayMicroseconds(2);
8//Sets the trigger pin to HIGH state for 10  milisecond(s)
9digitalWrite(triggerPin, HIGH);
10delayMicroseconds(10);
11digitalWrite(triggerPin,  LOW);
12pinMode(echoPin, INPUT);
13//Reads the echo pin, and returns the sound  wave travel time in microseconds
14  return pulseIn(echoPin,HIGH);
15}
16void  setup()
17{
18  pinMode(11,INPUT);
19  pinMode(6, OUTPUT);
20  pinMode(4, OUTPUT);
21  pinMode(3, OUTPUT);
22  Serial.begin(9600);
23}
24
25void loop()
26{
27  pir=digitalRead(11);
28  sensor=0.0173*readUltrasonicDistance(13,12);
29  Serial.println(sensor);
30  delay(500);//Wait for 500 milisecond(s)
31  if(sensor<= 200){
32    digitalWrite(3,  HIGH);
33    if(sensor <= 20){
34      if(pir==HIGH){
35      digitalWrite(6,  HIGH);
36      }
37      if(pir==LOW){
38        digitalWrite(6, LOW);
39      }
40    }
41  }
42  else{
43    digitalWrite(6, LOW);
44    digitalWrite(3, LOW);
45    
46    
47  }
48}

int pir=0;
int sensor=0;
long readUltrasonicDistance(int triggerPin,  int echoPin)
{
  pinMode(triggerPin, OUTPUT);//Clear the trigger
digitalWrite(triggerPin,  LOW);
  delayMicroseconds(2);
//Sets the trigger pin to HIGH state for 10  milisecond(s)
digitalWrite(triggerPin, HIGH);
delayMicroseconds(10);
digitalWrite(triggerPin,  LOW);
pinMode(echoPin, INPUT);
//Reads the echo pin, and returns the sound  wave travel time in microseconds
  return pulseIn(echoPin,HIGH);
}
void  setup()
{
  pinMode(11,INPUT);
  pinMode(6, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(3, OUTPUT);
  Serial.begin(9600);
}

void loop()
{
  pir=digitalRead(11);
  sensor=0.0173*readUltrasonicDistance(13,12);
  Serial.println(sensor);
  delay(500);//Wait for 500 milisecond(s)
  if(sensor<= 200){
    digitalWrite(3,  HIGH);
    if(sensor <= 20){
      if(pir==HIGH){
      digitalWrite(6,  HIGH);
      }
      if(pir==LOW){
        digitalWrite(6, LOW);
      }
    }
  }
  else{
    digitalWrite(6, LOW);
    digitalWrite(3, LOW);
    
    
  }
}

Social Distancing hand wash dispenser

arduino

1int pir=0;
2int sensor=0;
3long readUltrasonicDistance(int triggerPin,
4  int echoPin)
5{
6  pinMode(triggerPin, OUTPUT);//Clear the trigger
7digitalWrite(triggerPin,
8  LOW);
9  delayMicroseconds(2);
10//Sets the trigger pin to HIGH state for 10
11  milisecond(s)
12digitalWrite(triggerPin, HIGH);
13delayMicroseconds(10);
14digitalWrite(triggerPin,
15  LOW);
16pinMode(echoPin, INPUT);
17//Reads the echo pin, and returns the sound
18  wave travel time in microseconds
19  return pulseIn(echoPin,HIGH);
20}
21void
22  setup()
23{
24  pinMode(11,INPUT);
25  pinMode(6, OUTPUT);
26  pinMode(4, OUTPUT);
27
28  pinMode(3, OUTPUT);
29  Serial.begin(9600);
30}
31
32void loop()
33{
34
35  pir=digitalRead(11);
36  sensor=0.0173*readUltrasonicDistance(13,12);
37  Serial.println(sensor);
38
39  delay(500);//Wait for 500 milisecond(s)
40  if(sensor<= 200){
41    digitalWrite(3,
42  HIGH);
43    if(sensor <= 20){
44      if(pir==HIGH){
45      digitalWrite(6,
46  HIGH);
47      }
48      if(pir==LOW){
49        digitalWrite(6, LOW);
50      }
51
52    }
53  }
54  else{
55    digitalWrite(6, LOW);
56    digitalWrite(3, LOW);
57
58    
59    
60  }
61}

int pir=0;
int sensor=0;
long readUltrasonicDistance(int triggerPin,
  int echoPin)
{
  pinMode(triggerPin, OUTPUT);//Clear the trigger
digitalWrite(triggerPin,
  LOW);
  delayMicroseconds(2);
//Sets the trigger pin to HIGH state for 10
  milisecond(s)
digitalWrite(triggerPin, HIGH);
delayMicroseconds(10);
digitalWrite(triggerPin,
  LOW);
pinMode(echoPin, INPUT);
//Reads the echo pin, and returns the sound
  wave travel time in microseconds
  return pulseIn(echoPin,HIGH);
}
void
  setup()
{
  pinMode(11,INPUT);
  pinMode(6, OUTPUT);
  pinMode(4, OUTPUT);

  pinMode(3, OUTPUT);
  Serial.begin(9600);
}

void loop()
{

  pir=digitalRead(11);
  sensor=0.0173*readUltrasonicDistance(13,12);
  Serial.println(sensor);

  delay(500);//Wait for 500 milisecond(s)
  if(sensor<= 200){
    digitalWrite(3,
  HIGH);
    if(sensor <= 20){
      if(pir==HIGH){
      digitalWrite(6,
  HIGH);
      }
      if(pir==LOW){
        digitalWrite(6, LOW);
      }

    }
  }
  else{
    digitalWrite(6, LOW);
    digitalWrite(3, LOW);

    
    
  }
}

Downloadable files

Social Distancing hand wash dispenser

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