#include <LiquidCrystal.h>


LiquidCrystal lcd(12,13,17,16,27,14);



void setup() {  
  Serial.begin(115200);  
  pinMode(26, INPUT);
  pinMode(25, OUTPUT);
  lcd.begin(16, 2);  

}

void loop() {  
  digitalWrite(25,1);
  delay(1000);
  digitalWrite(25,0);
  delay(1000);
}