#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("OFF");
  pinMode(1,OUTPUT);
  pinMode(2,OUTPUT);
  pinMode(3,OUTPUT);
  pinMode(4,OUTPUT);
  pinMode(A0,INPUT_PULLUP);
  pinMode(A1,INPUT_PULLUP);
  pinMode(A2,INPUT_PULLUP);

}

void loop() {
 if(digitalRead(A0)==LOW && digitalRead(3)==LOW)
 {
digitalWrite(1,HIGH);
digitalWrite(2,HIGH);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("FORWARD");
 }
 if(digitalRead(A1)==LOW && digitalRead(1)==LOW)
 {
digitalWrite(3,HIGH);
digitalWrite(4,HIGH);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("REVERSE");
 }
  if(digitalRead(A2)==LOW){
digitalWrite(1,LOW);
digitalWrite(2,LOW);
digitalWrite(3,LOW);
digitalWrite(4,LOW);
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("OFF");
 }

}