#include <Wire.h> 
#include <LiquidCrystal_I2C.h>
int solar, mechanical, Sw=2;
LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display

void setup()
{
  lcd.init();                      // initialize the lcd 
 lcd.setBacklight(HIGH);
 pinMode(Sw,INPUT);

 }

void loop()
{
lcd.setCursor(1,0);
lcd.setCursor(12,0);
lcd.print(analogRead(2));
if (mechanical == HIGH)
{lcd.clear();
lcd.setCursor(0,1);
  lcd.print("Mechanical=");
  lcd.setCursor(12,1);
lcd.print(analogRead(0));
}
if (solar == HIGH)
{lcd.clear();
lcd.setCursor(0,1);
  lcd.print("Solar=");
  lcd.setCursor(13,1);
lcd.print(analogRead(2));
}
delay(500);
}