Measure Your Height by Ultrasonic Sensor

1int trig = 5;
2int echo = 6;
3
4float duration;
5int distance;
6int   Length;
7int door_Height =201;
8
9void setup() 
10{
11  Serial.begin (9600);
12   pinMode(trig, OUTPUT);
13  pinMode(echo, INPUT);
14}
15void loop() 
16{
17   digitalWrite(trig, LOW);        
18  delayMicroseconds(2);              
19   digitalWrite(trig, HIGH);
20  delayMicroseconds(10);           
21  digitalWrite(trig,   LOW);
22  duration = pulseIn(echo, HIGH);
23  distance = (duration/2) / 29.1;
24   Length =  door_Height - distance;
25  Serial.println("Distance: ");
26  Serial.print(distance);
27   Serial.println(" cm");
28  Serial.println("Length: ");
29  Serial.print(Length);
30   Serial.println(" cm");
31  delay(4000);
32}
33

1int trig = 5;
2int echo = 6;
3
4float duration;
5int distance;
6int  Length;
7int door_Height =201;
8
9void setup() 
10{
11  Serial.begin (9600);
12  pinMode(trig, OUTPUT);
13  pinMode(echo, INPUT);
14}
15void loop() 
16{
17  digitalWrite(trig, LOW);        
18  delayMicroseconds(2);              
19  digitalWrite(trig, HIGH);
20  delayMicroseconds(10);           
21  digitalWrite(trig,  LOW);
22  duration = pulseIn(echo, HIGH);
23  distance = (duration/2) / 29.1;
24  Length =  door_Height - distance;
25  Serial.println("Distance: ");
26  Serial.print(distance);
27  Serial.println(" cm");
28  Serial.println("Length: ");
29  Serial.print(Length);
30  Serial.println(" cm");
31  delay(4000);
32}
33