Published September 23, 2021

Social Distance Bag

A bag that contains Ultrasonic Sensor, to achieve social distancing to prevent the spread of the Corona virus (covid-19).

BeginnerFull instructions provided495

Things used in this project

Hardware components

Arduino UNO

Breadboard (generic)

Ultrasonic Sensor - HC-SR04 (Generic)

Seeed Studio Grove - 16 x 2 LCD (White on Blue)

5 mm LED: Red

Buzzer

Tactile Switch, Top Actuated

Toggle Switch, Toggle

Jumper wires (generic)

9V battery (generic)

Software apps and online services

Arduino IDE

Hand tools and fabrication machines

Hot glue gun (generic)

Story

Problems

Some viruses like the virus that causes COVID-19 spread easily, according to the Centers for Disease Control and Prevention. Social distancing puts space between individuals. If someone is sick and there are no people around, a virus cannot spread. Social distancing means we are doing our best to stay away from people to limit the spread of corona virus. Regular handwashing is one of the best ways to remove germs, avoid getting sick, and prevent the spread of germs to others. Whether you are at home, at work, traveling, or out in the community. So you should maintain at least a 1-metre distance between yourself and others to reduce your risk of infection when they cough, sneeze, or speak. Maintain an even greater distance between yourself and others when indoors. The further away, the better. Handwashing must be done at a minimum speed to dislodge viruses and bacteria, and it should last roughly 20 seconds.

The solution

1 / 3 • Social Distance Bag

The idea is to make a bag that contains Ultrasonic Sensor, to achieve social distancing to prevent the spread of the Corona virus (covid-19), and it counts 20 seconds in which you wash your hands, and the screen displays the distance between you and the person in front of you, and if it is less than 1 meter, it gives an alert.

Project objective is to achieve social distancing to prevent the spread of the Corona virus, and helps you count 20 seconds in which you wash your hands well.

Prototype costs

250 pounds.

Recommendation

The bag can be made in the form of a chain that does the same work.

Code

Social_distance_bag_project.ino

#include <LiquidCrystal.h>
LiquidCrystal lcd (7,8,9,10,11,12);


//wash your hand
int buzzer = 13;
int green_led = 6;
int push = 5 ;
int i=0;


//ultrasonic
int buzzer2 = 1;
int red_led = 2;
int on_off = 3;
int trig = 4;
int echo = A5;
int distance_in_cm ;


void setup() {
  lcd.begin(16,2);

  
 //wash your hand
 pinMode(buzzer,OUTPUT);
 pinMode(green_led,OUTPUT);
 pinMode(push,INPUT);


 //ultrasonic
 pinMode(buzzer2,OUTPUT);
 pinMode(red_led,OUTPUT);
 pinMode(on_off,INPUT);
 pinMode(trig,OUTPUT);
 pinMode(echo,INPUT);

}

void loop() {


 //wash your hand
 if (digitalRead(push)==HIGH){
   digitalWrite(buzzer,HIGH);
   digitalWrite(green_led,HIGH);
   delay(100);
   digitalWrite(buzzer,LOW);
   digitalWrite(green_led,LOW);
   delay(100);
   digitalWrite(buzzer,HIGH);
   digitalWrite(green_led,HIGH);
   delay(100);
   digitalWrite(buzzer,LOW);
   digitalWrite(green_led,LOW);

    for (i=0;i<=20;i++)
  {
     lcd.setCursor(0,0);
     lcd.print("distance;");
     lcd.print( "off      " );
     delay(1);
     digitalWrite(buzzer2,LOW);
     digitalWrite(red_led,LOW);
    
      
     lcd.setCursor(0,1);
     lcd.print("time:");
     lcd.print( i );
     lcd.print("sec");
     delay(1000);
    
    }
    
   delay(1);
 
   digitalWrite(buzzer,HIGH);
   digitalWrite(green_led,HIGH);
   delay(500);
   digitalWrite(buzzer,LOW);
   digitalWrite(green_led,LOW);
   delay(500);
   digitalWrite(buzzer,HIGH);
   digitalWrite(green_led,HIGH);
   delay(500);
   digitalWrite(buzzer,LOW);
   digitalWrite(green_led,LOW);
   delay(500);
   digitalWrite(buzzer,HIGH);
   digitalWrite(green_led,HIGH);
   delay(500);
   digitalWrite(buzzer,LOW);
   digitalWrite(green_led,LOW);
   delay(500);
   digitalWrite(buzzer,HIGH);
   digitalWrite(green_led,HIGH);
   delay(500);
   digitalWrite(buzzer,LOW);
   digitalWrite(green_led,LOW);
   delay(500);
   digitalWrite(buzzer,HIGH);
   digitalWrite(green_led,HIGH);
   delay(500);
   digitalWrite(buzzer,LOW);
   digitalWrite(green_led,LOW);
   delay(500);
   digitalWrite(buzzer,HIGH);
   digitalWrite(green_led,HIGH);
   delay(500);
   digitalWrite(buzzer,LOW);
   digitalWrite(green_led,LOW);
 }
  
else{ lcd.setCursor(0,1);
     lcd.print("time:");
     lcd.print("off       ");
     delay(1000);
  
  }




  //ultrasonic
  if(digitalRead(on_off)){
     digitalWrite(trig,HIGH);
     delay(0.2);
     digitalWrite(trig,LOW);
     distance_in_cm = pulseIn(echo,HIGH)/2/29.1;
     lcd.setCursor(0,0);
     lcd.print("distance:");
     lcd.print( distance_in_cm);
     lcd.print("cm         ");
     delay(500);
    
    
    if( distance_in_cm <=  100 && distance_in_cm > 50){
       digitalWrite(buzzer2,HIGH);
       digitalWrite(red_led,HIGH);
       delay(500);
       digitalWrite(buzzer2,LOW);
       digitalWrite(red_led,LOW);
    }

    else if( distance_in_cm <=  50 && distance_in_cm > 25){
       digitalWrite(buzzer2,HIGH);
       digitalWrite(red_led,HIGH);
       delay(2000);
       digitalWrite(buzzer2,LOW);
       digitalWrite(red_led,LOW);
    }

   else if( distance_in_cm <=  25&& distance_in_cm >= 0 ){
      digitalWrite(buzzer2,HIGH);
      digitalWrite(red_led,HIGH);
      
   }
   
  
   else{ digitalWrite(trig,LOW);
       digitalWrite(buzzer2,LOW);
       digitalWrite(red_led,LOW);
}
 
  
}
 else{ lcd.setCursor(0,0);
     lcd.print("distance:");
     lcd.print( "off      ");
     delay(1);
     
     digitalWrite(buzzer2,LOW);
      digitalWrite(red_led,LOW);
}

}