Published May 24, 2020 © GPL3+

Servo motor + ultrasonic sensor 2

This is the continuation of previous project (servo motor + ultrasonic sensor ) with a little modification.

IntermediateFull instructions provided1 hour6,732

Things used in this project

Hardware components

Arduino UNO

Breadboard (generic)

Ultrasonic Sensor - HC-SR04 (Generic)

Buzzer

SG90 Micro-servo motor

Male/Female Jumper Wires

Jumper wires (generic)

Software apps and online services

Arduino IDE

Story

This project has something exciting inside this.You can use proximity to actually control some kind of mechanical work.I wanna you guys to look further in this project.I have written this project in accordance with the thought that we can make Motor to do some mechanical work.I'm using this setup to push down the handwash's top button like structure so that we can have the drop of handwash in our hand without even touching it.It is very hygiene.

For visually impaired persons it has the audio signal coming out i.e when something comes near the ultrasonic sensor buzzer will also buzz to inform that everything is going as designed.

Gentle note

Hot glue gun and some sort of thick thread is required to attach the handwash container's head to the blades of servo motor.So, that when we will be rotating motor by 180 degrees it will pull down the head using that thread.

Code

The project code

#include<Servo.h>
int trig=8;
int echo=9;
int buzz=10;
int dt=10;
Servo servo;

//int distance,duration;
void setup() {
  // put your setup code here, to run once:
pinMode(trig,OUTPUT);
pinMode(buzz,OUTPUT);
pinMode(echo,INPUT);
Serial.begin(9600);
servo.attach(11);
}

void loop() {
  // put your main code here, to run repeatedly:
if (calc_dis()<15)
{
  digitalWrite(buzz,HIGH);
}
else
{
  digitalWrite(buzz,LOW);
}

if (calc_dis()<10)
{
  for (int i=0;i<=540;i++)
  {
    servo.write(i);
    delay(1);
  }
  delay(100);
  for (int i=540;i>=0;i--)
  {
    servo.write(i);
    delay(1);
  }
  delay(100);
}
}


int calc_dis()
{
  int duration,distance;
  digitalWrite(trig,HIGH);
  delay(dt);
  digitalWrite(trig,LOW);
  duration=pulseIn(echo,HIGH);
  distance = (duration/2) / 29.1;
  return distance;
}

Credits

Anjali Shaw

10 projects • 7 followers

Servo motor + ultrasonic sensor 2

Things used in this project

Hardware components

Software apps and online services

Story

Schematics

Circuit diagram

Code

The project code

Credits

Anjali Shaw

Comments

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Servo motor + ultrasonic sensor 2

Servo motor + ultrasonic sensor 2

Things used in this project

Hardware components

Software apps and online services

Story

Schematics

Circuit diagram

Code

The project code

Credits

Anjali Shaw

Comments

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