Arduino LCD Thermometer

Upgraded project "Love'O Meter"

Mar 25, 2018

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weather

smart appliances

monitoring

Components and supplies

Arduino UNO

Jumper wires (generic)

Thermometer (generic)

Standard LCD - 16x2 White on Blue

Rotary potentiometer (generic)

Apps and platforms

Arduino IDE

Project description

Code

The code

c_cpp

It is easy: just copy to your Arduino IDE and upload to the controller

1const int sensorPin = A0;
2const float baselineTemp = 20.0;
3#include  <LiquidCrystal.h>
4LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
5
6void setup()  {
7  Serial.begin(9600);
8  lcd.begin (16, 2);
9  lcd.print("--Made By: KMB--");
10  lcd.setCursor (0, 1);
11  lcd.print(" Measuring Temp.");
12  delay(5000);
13}
14
15void  loop() {
16  int sensorVal = analogRead(sensorPin);
17
18  Serial.print("sensor  Value: ");
19  Serial.print(sensorVal);
20
21  float voltage = (sensorVal /  1024.0) * 5.0;
22
23  Serial.print(", Volts: ");
24  Serial.print(voltage);
25
26  Serial.print(", degrees C: ");
27  float temperature = (voltage - .5) * 100;
28  Serial.println(temperature);
29
30  if (temperature < baselineTemp + 2) {
31     lcd.begin (16, 2);
32    lcd.print("Temperature:");
33    lcd.setCursor(0,  1);
34    lcd.print("Celsia:");
35    lcd.setCursor(7, 1);
36    lcd.print(temperature);
37  } 
38  else if (temperature >= baselineTemp + 2 && temperature < baselineTemp  + 4) {
39     lcd.begin (16, 2);
40    lcd.print("Temperature:");
41    lcd.setCursor(0,  1);
42    lcd.print("Celsia:");
43    lcd.setCursor(7, 1);
44    lcd.print(temperature);
45  } 
46  else if (temperature >= baselineTemp + 4 && temperature < baselineTemp  + 6) {
47     lcd.begin (16, 2);
48    lcd.print("Temperature:");
49    lcd.setCursor(0,  1);
50    lcd.print("Celsia:");
51    lcd.setCursor(7, 1);
52    lcd.print(temperature);
53  } 
54  else if (temperature >= baselineTemp + 6) {
55    lcd.begin (16, 2);
56    lcd.print("Temperature:");
57    lcd.setCursor(0, 1);
58    lcd.print("Celsia:");
59    lcd.setCursor(7, 1);
60    lcd.print(temperature);
61  }
62  delay(1000);
63}

const int sensorPin = A0;
const float baselineTemp = 20.0;
#include  <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup()  {
  Serial.begin(9600);
  lcd.begin (16, 2);
  lcd.print("--Made By: KMB--");
  lcd.setCursor (0, 1);
  lcd.print(" Measuring Temp.");
  delay(5000);
}

void  loop() {
  int sensorVal = analogRead(sensorPin);

  Serial.print("sensor  Value: ");
  Serial.print(sensorVal);

  float voltage = (sensorVal /  1024.0) * 5.0;

  Serial.print(", Volts: ");
  Serial.print(voltage);

  Serial.print(", degrees C: ");
  float temperature = (voltage - .5) * 100;
  Serial.println(temperature);

  if (temperature < baselineTemp + 2) {
     lcd.begin (16, 2);
    lcd.print("Temperature:");
    lcd.setCursor(0,  1);
    lcd.print("Celsia:");
    lcd.setCursor(7, 1);
    lcd.print(temperature);
  } 
  else if (temperature >= baselineTemp + 2 && temperature < baselineTemp  + 4) {
     lcd.begin (16, 2);
    lcd.print("Temperature:");
    lcd.setCursor(0,  1);
    lcd.print("Celsia:");
    lcd.setCursor(7, 1);
    lcd.print(temperature);
  } 
  else if (temperature >= baselineTemp + 4 && temperature < baselineTemp  + 6) {
     lcd.begin (16, 2);
    lcd.print("Temperature:");
    lcd.setCursor(0,  1);
    lcd.print("Celsia:");
    lcd.setCursor(7, 1);
    lcd.print(temperature);
  } 
  else if (temperature >= baselineTemp + 6) {
    lcd.begin (16, 2);
    lcd.print("Temperature:");
    lcd.setCursor(0, 1);
    lcd.print("Celsia:");
    lcd.setCursor(7, 1);
    lcd.print(temperature);
  }
  delay(1000);
}

The code

c_cpp

It is easy: just copy to your Arduino IDE and upload to the controller

1const int sensorPin = A0;
2const float baselineTemp = 20.0;
3#include   <LiquidCrystal.h>
4LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
5
6void setup()   {
7  Serial.begin(9600);
8  lcd.begin (16, 2);
9  lcd.print("--Made By: KMB--");
10   lcd.setCursor (0, 1);
11  lcd.print(" Measuring Temp.");
12  delay(5000);
13}
14
15void   loop() {
16  int sensorVal = analogRead(sensorPin);
17
18  Serial.print("sensor   Value: ");
19  Serial.print(sensorVal);
20
21  float voltage = (sensorVal /   1024.0) * 5.0;
22
23  Serial.print(", Volts: ");
24  Serial.print(voltage);
25
26   Serial.print(", degrees C: ");
27  float temperature = (voltage - .5) * 100;
28   Serial.println(temperature);
29
30  if (temperature < baselineTemp + 2) {
31      lcd.begin (16, 2);
32    lcd.print("Temperature:");
33    lcd.setCursor(0,   1);
34    lcd.print("Celsia:");
35    lcd.setCursor(7, 1);
36    lcd.print(temperature);
37   } 
38  else if (temperature >= baselineTemp + 2 && temperature < baselineTemp   + 4) {
39     lcd.begin (16, 2);
40    lcd.print("Temperature:");
41    lcd.setCursor(0,   1);
42    lcd.print("Celsia:");
43    lcd.setCursor(7, 1);
44    lcd.print(temperature);
45   } 
46  else if (temperature >= baselineTemp + 4 && temperature < baselineTemp   + 6) {
47     lcd.begin (16, 2);
48    lcd.print("Temperature:");
49    lcd.setCursor(0,   1);
50    lcd.print("Celsia:");
51    lcd.setCursor(7, 1);
52    lcd.print(temperature);
53   } 
54  else if (temperature >= baselineTemp + 6) {
55    lcd.begin (16, 2);
56     lcd.print("Temperature:");
57    lcd.setCursor(0, 1);
58    lcd.print("Celsia:");
59     lcd.setCursor(7, 1);
60    lcd.print(temperature);
61  }
62  delay(1000);
63}

const int sensorPin = A0;
const float baselineTemp = 20.0;
#include   <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup()   {
  Serial.begin(9600);
  lcd.begin (16, 2);
  lcd.print("--Made By: KMB--");
   lcd.setCursor (0, 1);
  lcd.print(" Measuring Temp.");
  delay(5000);
}

void   loop() {
  int sensorVal = analogRead(sensorPin);

  Serial.print("sensor   Value: ");
  Serial.print(sensorVal);

  float voltage = (sensorVal /   1024.0) * 5.0;

  Serial.print(", Volts: ");
  Serial.print(voltage);

   Serial.print(", degrees C: ");
  float temperature = (voltage - .5) * 100;
   Serial.println(temperature);

  if (temperature < baselineTemp + 2) {
      lcd.begin (16, 2);
    lcd.print("Temperature:");
    lcd.setCursor(0,   1);
    lcd.print("Celsia:");
    lcd.setCursor(7, 1);
    lcd.print(temperature);
   } 
  else if (temperature >= baselineTemp + 2 && temperature < baselineTemp   + 4) {
     lcd.begin (16, 2);
    lcd.print("Temperature:");
    lcd.setCursor(0,   1);
    lcd.print("Celsia:");
    lcd.setCursor(7, 1);
    lcd.print(temperature);
   } 
  else if (temperature >= baselineTemp + 4 && temperature < baselineTemp   + 6) {
     lcd.begin (16, 2);
    lcd.print("Temperature:");
    lcd.setCursor(0,   1);
    lcd.print("Celsia:");
    lcd.setCursor(7, 1);
    lcd.print(temperature);
   } 
  else if (temperature >= baselineTemp + 6) {
    lcd.begin (16, 2);
     lcd.print("Temperature:");
    lcd.setCursor(0, 1);
    lcd.print("Celsia:");
     lcd.setCursor(7, 1);
    lcd.print(temperature);
  }
  delay(1000);
}

Downloadable files

The circuit - download

The circuit

Sorry, I am still a beginner in this app.

The circuit

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