#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C ecranLCD(0x27, 20, 4);
LiquidCrystal_I2C ecranLCD2(0x26, 16, 2);

void setup() {
  const int POT A)
  ecranLCD.begin(20, 4);
  ecranLCD.backlight();
  ecranLCD2.begin(16, 2);
  ecranLCD2.backlight();
  ecranLCD2.print("je suis le 2");
  ecranLCD.print("Margin left");
 ecranLCD.setCursor(0, 1);
 ecranLCD.print("Vive le 420 ..");
 
  ecranLCD.setCursor(0, 3);
  ecranLCD.print("Temps: ");
}

void loop() {
   ecranLCD.setCursor(7, 3);
   ecranLCD.print(millis()/1000);
}