Social Distancing Reminder

This project will help a person to maintain a minimum distance of 1 metre from another person to avoid further spread of COVID-19 virus.

Jun 17, 2020

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Components and supplies

9V 1A Switching Wall Power Supply

Buzzer

Arduino UNO

Jumper wires (generic)

Ultrasonic Sensor - HC-SR04 (Generic)

Tools and machines

Tape, Gaffer / Duct / Cloth

Apps and platforms

Tinkercad

Project description

Code

arduino

1int pingPin = 9;
2int buzzer = 11;
3
4void setup() {
5  
6  Serial.begin(9600);
7   pinMode(buzzer, OUTPUT);
8}
9
10void loop() {
11  long duration, cm;
12
13   pinMode(pingPin, OUTPUT);
14  digitalWrite(pingPin, LOW);
15  delayMicroseconds(2);
16   digitalWrite(pingPin, HIGH);
17  delayMicroseconds(5);
18  digitalWrite(pingPin,   LOW);
19
20  pinMode(pingPin, INPUT);
21  duration = pulseIn(pingPin, HIGH);
22   cm = microsecondsToCentimeters(duration);
23
24  Serial.print("Distance: ");
25   Serial.print(cm);
26  Serial.print("cm");
27  Serial.println();
28
29  if(cm   < 100) {
30    digitalWrite(buzzer, HIGH);
31  }
32  else {
33    digitalWrite(buzzer,   LOW);
34  }
35  
36  delay(100);
37}
38
39
40long microsecondsToCentimeters(long   microseconds) {
41  return microseconds / 29 / 2;
42}

int pingPin = 9;
int buzzer = 11;

void setup() {
  
  Serial.begin(9600);
   pinMode(buzzer, OUTPUT);
}

void loop() {
  long duration, cm;

   pinMode(pingPin, OUTPUT);
  digitalWrite(pingPin, LOW);
  delayMicroseconds(2);
   digitalWrite(pingPin, HIGH);
  delayMicroseconds(5);
  digitalWrite(pingPin,   LOW);

  pinMode(pingPin, INPUT);
  duration = pulseIn(pingPin, HIGH);
   cm = microsecondsToCentimeters(duration);

  Serial.print("Distance: ");
   Serial.print(cm);
  Serial.print("cm");
  Serial.println();

  if(cm   < 100) {
    digitalWrite(buzzer, HIGH);
  }
  else {
    digitalWrite(buzzer,   LOW);
  }
  
  delay(100);
}


long microsecondsToCentimeters(long   microseconds) {
  return microseconds / 29 / 2;
}

Code

arduino

1int pingPin = 9;
2int buzzer = 11;
3
4void setup() {
5  
6  Serial.begin(9600);
7  pinMode(buzzer, OUTPUT);
8}
9
10void loop() {
11  long duration, cm;
12
13  pinMode(pingPin, OUTPUT);
14  digitalWrite(pingPin, LOW);
15  delayMicroseconds(2);
16  digitalWrite(pingPin, HIGH);
17  delayMicroseconds(5);
18  digitalWrite(pingPin,  LOW);
19
20  pinMode(pingPin, INPUT);
21  duration = pulseIn(pingPin, HIGH);
22  cm = microsecondsToCentimeters(duration);
23
24  Serial.print("Distance: ");
25  Serial.print(cm);
26  Serial.print("cm");
27  Serial.println();
28
29  if(cm  < 100) {
30    digitalWrite(buzzer, HIGH);
31  }
32  else {
33    digitalWrite(buzzer,  LOW);
34  }
35  
36  delay(100);
37}
38
39
40long microsecondsToCentimeters(long  microseconds) {
41  return microseconds / 29 / 2;
42}

int pingPin = 9;
int buzzer = 11;

void setup() {
  
  Serial.begin(9600);
  pinMode(buzzer, OUTPUT);
}

void loop() {
  long duration, cm;

  pinMode(pingPin, OUTPUT);
  digitalWrite(pingPin, LOW);
  delayMicroseconds(2);
  digitalWrite(pingPin, HIGH);
  delayMicroseconds(5);
  digitalWrite(pingPin,  LOW);

  pinMode(pingPin, INPUT);
  duration = pulseIn(pingPin, HIGH);
  cm = microsecondsToCentimeters(duration);

  Serial.print("Distance: ");
  Serial.print(cm);
  Serial.print("cm");
  Serial.println();

  if(cm  < 100) {
    digitalWrite(buzzer, HIGH);
  }
  else {
    digitalWrite(buzzer,  LOW);
  }
  
  delay(100);
}


long microsecondsToCentimeters(long  microseconds) {
  return microseconds / 29 / 2;
}

Downloadable files

Schematic

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rohit270798

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