Make it Possible with Physics - Ultrasonic Thermometer!

In this tutorial, I will be giving the basics for an ultrasonic thermometer and the idea behind it.

Aug 9, 2016

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15788 views

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7 respects

thermometer

sensor

Components and supplies

HC-SR04 Ultrasonic Sensor

Arduino UNO

Apps and platforms

Arduino IDE

Project description

Code

Main Arduino Sketch

arduino

Calculates the speed of sound and converts it to ambient temperature as mentioned in the description.

1#define echo 7
2#define trigger 8
3double delaytime, temperature,  speedofsound;
4
5void setup(){
6pinMode(trigger,OUTPUT);
7pinMode(echo,INPUT);
8Serial.begin(9600);
9}
10
11void  loop(){
12digitalWrite(trigger,LOW);
13delayMicroseconds(2);         //Standard  trigger-echo cycle provided by                              the manufacturer
14digitalWrite(trigger,HIGH);
15delayMicroseconds(10);
16digitalWrite(trigger,LOW);
17
18delaytime=pulseIn(echo,HIGH);
19speedofsound=370000/delaytime;
20temperature=(speedofsound-331.4)/0.6;
21Serial.println(temperature);
22delay(500);
23}

#define echo 7
#define trigger 8
double delaytime, temperature,  speedofsound;

void setup(){
pinMode(trigger,OUTPUT);
pinMode(echo,INPUT);
Serial.begin(9600);
}

void  loop(){
digitalWrite(trigger,LOW);
delayMicroseconds(2);         //Standard  trigger-echo cycle provided by                              the manufacturer
digitalWrite(trigger,HIGH);
delayMicroseconds(10);
digitalWrite(trigger,LOW);

delaytime=pulseIn(echo,HIGH);
speedofsound=370000/delaytime;
temperature=(speedofsound-331.4)/0.6;
Serial.println(temperature);
delay(500);
}

Main Arduino Sketch

arduino

Calculates the speed of sound and converts it to ambient temperature as mentioned in the description.

1#define echo 7
2#define trigger 8
3double delaytime, temperature,
4  speedofsound;
5
6void setup(){
7pinMode(trigger,OUTPUT);
8pinMode(echo,INPUT);
9Serial.begin(9600);
10}
11
12void
13  loop(){
14digitalWrite(trigger,LOW);
15delayMicroseconds(2);         //Standard
16  trigger-echo cycle provided by                              the manufacturer
17digitalWrite(trigger,HIGH);
18delayMicroseconds(10);
19digitalWrite(trigger,LOW);
20
21delaytime=pulseIn(echo,HIGH);
22speedofsound=370000/delaytime;
23temperature=(speedofsound-331.4)/0.6;
24Serial.println(temperature);
25delay(500);
26}

#define echo 7
#define trigger 8
double delaytime, temperature,
  speedofsound;

void setup(){
pinMode(trigger,OUTPUT);
pinMode(echo,INPUT);
Serial.begin(9600);
}

void
  loop(){
digitalWrite(trigger,LOW);
delayMicroseconds(2);         //Standard
  trigger-echo cycle provided by                              the manufacturer
digitalWrite(trigger,HIGH);
delayMicroseconds(10);
digitalWrite(trigger,LOW);

delaytime=pulseIn(echo,HIGH);
speedofsound=370000/delaytime;
temperature=(speedofsound-331.4)/0.6;
Serial.println(temperature);
delay(500);
}

Downloadable files

Sensor connections

Simple connection between Ardıuino UNO and the rangefinder module.

Sensor connections

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berkeralpz

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