#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 20, 4);
void setup()
{
lcd.init();
}
void loop()
{
lcd.backlight();
// Envoi du message
lcd.setCursor(0,0);
lcd.print("tension : V");
delay(1000);
lcd.clear();
lcd.setCursor(0,0);
lcd.print("intensite : A");
delay(1000);
lcd.clear();
lcd.setCursor(0,0);
lcd.print("puissance : W");
delay(1000);
lcd.clear();
lcd.setCursor(0,0);
}