#include <LiquidCrystal.h>

const int relay = 13;
LiquidCrystal lcd (12,11,7,6,5,4);

void setup() {
  // put your setup code here, to run once:
  pinMode(relay, OUTPUT);
  digitalWrite(relay, HIGH);
  lcd.begin(16,2);
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(relay, LOW);
  delay(1000);
  lcd.setCursor(0,1);
  lcd.print("High");
  digitalWrite(relay, HIGH);
  delay(1000);
  lcd.setCursor(0,1);
  lcd.print("Low ");
}