Published June 30, 2020

Touchless Hand Sanitizer Dispenser

A Touchless Hand Sanitizer Dispenser to avoid transmission of viruses due to hand contact.

BeginnerFull instructions provided1 hour1,507

Things used in this project

Hardware components

Elegoo Arduino Nano V3+

Servo Motors

Ultrasonic Sensor

Dupont Wires

Breadboard

Story

Stay home, stay creative. To swipe away boredom, encourage making, and bring ideas for more quality quarantine days, we made a series of new projects involved with #Arduino, which are all low-cost solutions that respond to the COVID-19 pandemic.

This is the 1st one: A Touchless Hand Sanitizer Dispenser to avoid transmission of viruses due to hand contact.

Please watch the video to find the step-by-step tutorial:

Download code and schematic of this project here: https://bit.ly/3ar2uji

This project is originally inspired by Robotik Kodlama on Instagram. (https://www.instagram.com/p/B-h95fNDcj6/)

Code

Touchless Hand Sanitizer Dispenser

//www.elegoo.com
//2016.12.08
#include "SR04.h"
#include <Servo.h>


#define TRIG_PIN 12
#define ECHO_PIN 11
SR04 sr04 = SR04(ECHO_PIN,TRIG_PIN);
long a=0;


Servo myservo1;
Servo myservo2;
Servo myservo3;
Servo myservo4;




void setup() {
  Serial.begin(9600);
  myservo1.attach(2);
  myservo2.attach(3);
  myservo3.attach(4);
  myservo4.attach(5);
  delay(2000);
}


void loop() {
  a=sr04.Distance();
  Serial.print(a);
  Serial.println("cm");
//  delay(300);
if(a<=8&&a>=1)
{
  myservo1.write(120);
  myservo2.write(120);
  myservo3.write(120);
  myservo4.write(120);
  delay(1000);   //
 
 
}
else
{
  myservo1.write(0);
  myservo2.write(0);
  myservo3.write(0);
  myservo4.write(0);
}
 
}

Credits

Elegoo Official

3 projects • 18 followers

Touchless Hand Sanitizer Dispenser

Things used in this project

Hardware components

Story

Schematics