Team The Social Distancers: allekartik, ritvikalle, anjankl2k

Created August 30, 2020

The Social Distancer

Our project is a wearable device that can clip onto your shirt and will detect if people are within 6 feet of you

Beginner36

Things used in this project

Hardware components

Arduino Nano R3

Gikfun Mini Breadboard

PIR Sensor, 7 m

Ultrasonic Sensor - HC-SR04 (Generic)

Battery, 9 V

Snap-on Connector, For 1 9-V Battery

Mini USB to DC Power Adapter

Stainless Steel Clips

Assorted DuPont Wires

Hand tools and fabrication machines

Hot glue gun (generic)

Tape, Electrical

Scissor, Electrician

Story

The social distancing guidelines of maintaining a 6 foot distance from everyone are not being followed. The reason we social distance is to reduce our chances of contracting COVID-19. In the US, people are following these rules very little, therefore, the cases in the US are higher than all the countries.

Social distancing criteria may not be met by the people implementing it. They might not know what is 6 feet from a person. People also sometimes forget that they must social distance.

This is why we created the Social Distancer. The Social Distancer is a wearable device that will alert you if someone is within 6 feet of you. We did this by integrating an ultrasonic sensor and a PIR sensor. The ultrasonic sensor will give an output if any object is within 6 feet of the sensor. The PIR sensor detects the motion of a warm body, such as a human or an animal within 3 meters. by combining these sensors with our code, we were able to detect a person within 6 feet.

We used metal clips to fasten the device to the bottom of our shirt. We also used a mini breadboard and taped it onto the Arduino board so we could house our extra wires. And we also used a 9 volt battery to power our project.

Our device will help people maintain the 6 foot social distancing guidelines by reminding them to do so. The beep will keep them in check while they are, for example in a grocery store. This will ensure that the population is socially distancing, and therefore, we can reduce the spread of the coronavirus.

Video of project:

intSensorsNano.ino

const int trigPin = 3;
const int echoPin = 4;
const int pirPin = 5;
const int oPin = 2;

void setup() {
  Serial.begin(9600);
  pinMode(trigPin, OUTPUT); 
  pinMode(echoPin, INPUT);
  pinMode(pirPin, INPUT_PULLUP);
  pinMode(oPin, OUTPUT);
}

void loop() {
  long duration, inches, cm;

  digitalWrite(oPin, LOW);
  digitalWrite(trigPin, LOW);
  delayMicroseconds(10);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  
  duration = pulseIn(echoPin, HIGH);

  inches = microsecondsToInches(duration);
  cm = microsecondsToCentimeters(duration);
  
  int pirInput = digitalRead(pirPin);
  if(pirInput && inches < 72) {
    digitalWrite(oPin, HIGH);
    Serial.print("in range ");
    Serial.print(inches);
    Serial.println("in\n");
  }
  
  Serial.print(inches);
  Serial.print("in, ");
  Serial.print(cm);
  Serial.print("cm");
  Serial.println();

  delay(100);
}

long microsecondsToInches(long microseconds) {
  return microseconds / 74 / 2;
}

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

The Social Distancer

Things used in this project

Hardware components

Hand tools and fabrication machines

Story

Code

intSensorsNano.ino

Credits

allekartik

ritvikalle

anjankl2k

Comments

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The Social Distancer

The Social Distancer

Things used in this project

Hardware components

Hand tools and fabrication machines

Story

Code

intSensorsNano.ino

Credits

allekartik

ritvikalle

anjankl2k

Comments

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