LCD Portable Temp Station

Shows the temp using a thermistor and a LCD display and Arduino Uno.

Jun 20, 2017

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Devices & Components

Arduino Uno Rev3

Jumper wires (generic)

Rotary potentiometer (generic)

thermistor

Resistor 10k ohm

Breadboard (generic)

resistor (yellow, blue, red)

Hardware & Tools

scissor

Software & Tools

Arduino IDE

Arduino Web Editor

Project description

Code

untitled

c_cpp

1#include <LiquidCrystal.h>
2
3int ThermistorPin = 0;
4int Vo;
5float   R1 = 10000;
6float logR2, R2, T;
7float c1 = 1.009249522e-03, c2 = 2.378405444e-04,   c3 = 2.019202697e-07;
8
9LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
10
11void   setup() {
12Serial.begin(9600);
13
14}
15
16void loop() {
17lcd.print("Alexander's");
18delay(2000);
19lcd.clear();
20lcd.print("Average   air temp.");
21delay(2000);
22lcd.clear();
23//_________________________
24   Vo = analogRead(ThermistorPin);
25  R2 = R1 * (1023.0 / (float)Vo - 1.0);
26   logR2 = log(R2);
27  T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2));
28   T = T - 273.15;
29  T = (T * 9.0)/ 5.0 + 32.0; 
30
31  lcd.print("Temp = ");
32   lcd.print(T);   
33  lcd.print(" F");
34  
35  delay(4000);            
36   lcd.clear();
37}
38

#include <LiquidCrystal.h>

int ThermistorPin = 0;
int Vo;
float   R1 = 10000;
float logR2, R2, T;
float c1 = 1.009249522e-03, c2 = 2.378405444e-04,   c3 = 2.019202697e-07;

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void   setup() {
Serial.begin(9600);

}

void loop() {
lcd.print("Alexander's");
delay(2000);
lcd.clear();
lcd.print("Average   air temp.");
delay(2000);
lcd.clear();
//_________________________
   Vo = analogRead(ThermistorPin);
  R2 = R1 * (1023.0 / (float)Vo - 1.0);
   logR2 = log(R2);
  T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2));
   T = T - 273.15;
  T = (T * 9.0)/ 5.0 + 32.0; 

  lcd.print("Temp = ");
   lcd.print(T);   
  lcd.print(" F");
  
  delay(4000);            
   lcd.clear();
}

untitled

c_cpp

1#include <LiquidCrystal.h>
2
3int ThermistorPin = 0;
4int Vo;
5float  R1 = 10000;
6float logR2, R2, T;
7float c1 = 1.009249522e-03, c2 = 2.378405444e-04,  c3 = 2.019202697e-07;
8
9LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
10
11void  setup() {
12Serial.begin(9600);
13
14}
15
16void loop() {
17lcd.print("Alexander's");
18delay(2000);
19lcd.clear();
20lcd.print("Average  air temp.");
21delay(2000);
22lcd.clear();
23//_________________________
24  Vo = analogRead(ThermistorPin);
25  R2 = R1 * (1023.0 / (float)Vo - 1.0);
26  logR2 = log(R2);
27  T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2));
28  T = T - 273.15;
29  T = (T * 9.0)/ 5.0 + 32.0; 
30
31  lcd.print("Temp = ");
32  lcd.print(T);   
33  lcd.print(" F");
34  
35  delay(4000);            
36  lcd.clear();
37}
38

#include <LiquidCrystal.h>

int ThermistorPin = 0;
int Vo;
float  R1 = 10000;
float logR2, R2, T;
float c1 = 1.009249522e-03, c2 = 2.378405444e-04,  c3 = 2.019202697e-07;

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void  setup() {
Serial.begin(9600);

}

void loop() {
lcd.print("Alexander's");
delay(2000);
lcd.clear();
lcd.print("Average  air temp.");
delay(2000);
lcd.clear();
//_________________________
  Vo = analogRead(ThermistorPin);
  R2 = R1 * (1023.0 / (float)Vo - 1.0);
  logR2 = log(R2);
  T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2));
  T = T - 273.15;
  T = (T * 9.0)/ 5.0 + 32.0; 

  lcd.print("Temp = ");
  lcd.print(T);   
  lcd.print(" F");
  
  delay(4000);            
  lcd.clear();
}

untitled

c_cpp

1#include <LiquidCrystal.h>
2
3int ThermistorPin = 0;
4int Vo;
5float
6  R1 = 10000;
7float logR2, R2, T;
8float c1 = 1.009249522e-03, c2 = 2.378405444e-04,
9  c3 = 2.019202697e-07;
10
11LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
12
13void
14  setup() {
15Serial.begin(9600);
16
17}
18
19void loop() {
20lcd.print("Alexander's");
21delay(2000);
22lcd.clear();
23lcd.print("Average
24  air temp.");
25delay(2000);
26lcd.clear();
27//_________________________
28
29  Vo = analogRead(ThermistorPin);
30  R2 = R1 * (1023.0 / (float)Vo - 1.0);
31
32  logR2 = log(R2);
33  T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2));
34
35  T = T - 273.15;
36  T = (T * 9.0)/ 5.0 + 32.0; 
37
38  lcd.print("Temp = ");
39
40  lcd.print(T);   
41  lcd.print(" F");
42  
43  delay(4000);            
44
45  lcd.clear();
46}
47

#include <LiquidCrystal.h>

int ThermistorPin = 0;
int Vo;
float
  R1 = 10000;
float logR2, R2, T;
float c1 = 1.009249522e-03, c2 = 2.378405444e-04,
  c3 = 2.019202697e-07;

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void
  setup() {
Serial.begin(9600);

}

void loop() {
lcd.print("Alexander's");
delay(2000);
lcd.clear();
lcd.print("Average
  air temp.");
delay(2000);
lcd.clear();
//_________________________

  Vo = analogRead(ThermistorPin);
  R2 = R1 * (1023.0 / (float)Vo - 1.0);

  logR2 = log(R2);
  T = (1.0 / (c1 + c2*logR2 + c3*logR2*logR2*logR2));

  T = T - 273.15;
  T = (T * 9.0)/ 5.0 + 32.0; 

  lcd.print("Temp = ");

  lcd.print(T);   
  lcd.print(" F");
  
  delay(4000);            

  lcd.clear();
}

Downloadable files

thermistor

screen

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