Aplication of NTC thermistor and Arduino with LCD unit

1#include <Wire.h>
2#include <LCD.h>
3#include <LiquidCrystal_I2C.h>
4LiquidCrystal_I2C  lcd(0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // Addr, En, Rw, Rs, d4, d5, d6, d7,  backlighpin, polarity  AnalogReadSerial
5
6/*
7  Reads an analog input on  pin 0, prints the result to the Serial Monitor.
8  Graphical representation is  available using Serial Plotter (Tools > Serial Plotter menu).
9  Attach the center  pin of a potentiometer to pin A0, and the outside pins to +5V and ground.
10
11  This example code is in the public domain.
12
13  http://www.arduino.cc/en/Tutorial/AnalogReadSerial
14*/
15
16//  the setup routine runs once when you press reset:
17void setup() {
18  // initialize  serial communication at 9600 bits per second:
19  Serial.begin(9600);
20  lcd.begin(16,2);
21    lcd.backlight();
22    lcd.setCursor(0, 0);
23   // lcd.print("Hello world!");
24    lcd.setCursor(0, 1);
25  //  lcd.print("Row number: ");
26    lcd.setCursor(12,  1);
27//    lcd.print("2");
28}
29
30// the loop routine runs over and over  again forever:
31void loop() {
32  // read the input on analog pin 0:
33  int  sensorValue = analogRead(A0);
34  int sensorValue1 = analogRead(A1);
35  int sensorValue2  = analogRead(A2);
36  
37  float temp1 = sensorValue * (62.0/1023.0);
38   float  temp2 = sensorValue1 * (62.0/1023.0);
39  float temp3 = sensorValue2 * (62.0/1023.0);
40  float average= (temp1+temp2+temp3);
41  float temp =(average/3);
42 
43  //  print out the value you read:
44  Serial.print("sensor =");
45  Serial.println(sensorValue);
46  Serial.print("temp =");
47  Serial.println(temp);
48  Serial.println(  );
49  lcd.clear();
50  lcd.print("Temp = ");
51  lcd.print(temp);
52   lcd.print("  0C");
53  delay(1000);        // delay in between reads for stability
54}
55