#include <LiquidCrystal_I2C.h>


LiquidCrystal_I2C lcd(0x27, 16, 2); // I2C address 0x27, 16 column and 2 rows

void setup() {
  lcd.init(); // initialize the lcd
  lcd.backlight();
  Serial.begin(115200);
  
}

void CO2Level() {
  int16_t c = analogRead(2);
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("CO2: ");
  lcd.print(String(c));
  lcd.setCursor(9, 0);
  lcd.print("ppm");
  delay(500);      // print message at (0, 0)
 
  Serial.print("Analog: ");
  Serial.println(analogRead(26));
  delay(100);
}

void loop() {
 
  lcd.setCursor(5, 1);      // move cursor to   (2, 1)
  lcd.print("EC Dept"); // print message at (2, 1)
  delay(2000);                  // display the above for two seconds

Serial.print("Analog: ");
Serial.println(analogRead(2));
  delay(100);
CO2Level();
}