Published September 23, 2021

Measure Your Height by Ultrasonic Sensor

A simple device that consists of Ultrasonic Sensor that will help us measure the height with more accuracy and less error.

BeginnerFull instructions provided5,286

Measure Your Height by Ultrasonic Sensor

Things used in this project

Hardware components

Arduino UNO

Ultrasonic Sensor - HC-SR04 (Generic)

Jumper wires (generic)

9V battery (generic)

Software apps and online services

Arduino IDE

Hand tools and fabrication machines

Tape, Double Sided

Story

Important of measuring height

Measuring height helps to show whether a child is growing well. (Measuring the child's height as they grow is an important way to check they are developing as they should be).

If measurements show that a child is wasting, thin or swollen, the child may have acute malnutrition and must be referred for nutritional care and treatment.

Problems of measuring height by traditional way

The traditional way in measuring height is using height board. There is a lot of problems in this way, as:

It is not accurate and precise.

The Person who read the measurement may read it wrong with a big error.

The Person who records the measurements may record it wrong with a big error.

The solution

Measure Your Height

The idea is to make a simple device that consists of Ultrasonic Sensor. This simple device will be put at the top of any door. This device will help us measure the height with more accuracy and less error and automatically without help from any person. This device is too easy to make in any home and its cost is very low.

Project objective is to measure the height with more accuracy and less error and automatically without help from any person.

Prototype costs

200 pounds.

Recommendation

We can put an LCD that can record height.

Code

Measure Your Height

int trig = 5;
int echo = 6;

float duration;
int distance;
int Length;
int door_Height =201;

void setup() 
{
  Serial.begin (9600);
  pinMode(trig, OUTPUT);
  pinMode(echo, INPUT);
}
void loop() 
{
  digitalWrite(trig, LOW);        
  delayMicroseconds(2);              
  digitalWrite(trig, HIGH);
  delayMicroseconds(10);           
  digitalWrite(trig, LOW);
  duration = pulseIn(echo, HIGH);
  distance = (duration/2) / 29.1;
  Length =  door_Height - distance;
  Serial.println("Distance: ");
  Serial.print(distance);
  Serial.println(" cm");
  Serial.println("Length: ");
  Serial.print(Length);
  Serial.println(" cm");
  delay(4000);
}

Credits

kiroloskhairy

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