#include <Wire.h>
#include <LiquidCrystal.h>

#define NTC_PIN 26  // Connect the NTC sensor to analog pin A0
#define LCD_RS 7     // RS pin of the LCD
#define LCD_EN 8     // EN pin of the LCD
#define LCD_D4 9     // D4 pin of the LCD
#define LCD_D5 10    // D5 pin of the LCD
#define LCD_D6 11    // D6 pin of the LCD
#define LCD_D7 12    // D7 pin of the LCD

// Define LCD pin mapping
LiquidCrystal lcd(LCD_RS, LCD_EN, LCD_D4, LCD_D5, LCD_D6, LCD_D7);
int tempPin = 26;  // Connect the potentiometer to analog pin A1

void setup() {
  pinMode(tempPin, INPUT);
  Serial.begin(115200);
  lcd.begin(16, 2);
  lcd.clear();
}

float readTemperature() {
  // Read analog value from the NTC sensor
  int sensorValue = analogRead(NTC_PIN);

  // Convert analog value to temperature using a simple linear conversion
  // Replace this formula with the one corresponding to your specific NTC sensor
  float voltage = sensorValue * (5.0 / 1023.0);
  float temperature = (voltage - 0.5) * 100.0;

  return temperature;
}

void loop() {
  // Read temperature from the NTC sensor
  float temperature = readTemperature();

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temperature:");

  lcd.setCursor(0, 1);
  lcd.print(" Temp: ");
  lcd.print(temperature);
  lcd.print(" C");

  //Serial.print("Calculated temperature (NTC): ");
  Serial.print('sensorValue');
  Serial.println(temperature);

  delay(1000);
}