#include <Shifter.h>

#define SER_Pin 5 // dataPin
#define RCLK_Pin 7 // lacthPin
#define SRCLK_Pin 6 // clockPin

#define NUM_REGISTERS 3 //Aquí se definen cuántos registros de desplazamiento hay en la cadena...

//Inicializar el registro de desplazamiento usando la libreria "Shifter"
Shifter shifter(SER_Pin, RCLK_Pin, SRCLK_Pin, NUM_REGISTERS); 

// the number of the pushbutton pin
// IN1 = pin 2; IN2 = pin 3; IN3 = pin 8; IN2 = pin 9; 
const int buttonPin = 3;     
// variables will change:
int buttonState = 0; // variable for reading the pushbutton status

void setup(){
  // initialize the pushbutton pin as an input:
  pinMode(buttonPin, INPUT);     
}

void loop(){
  
  //Ejemplos de sentencias que admite la libreria "Shifter": 
  //shifter.clear(); //Desactiva todas las salidas de todos los registros de desplazamiento de la cadena
  //shifter.write(); //send changes to the chain and display them
  //delay(100);
  
  //shifter.setAll(HIGH); //Activa todas las salidas de todos los registros de desplazamiento de la cadena
  //shifter.write(); //send changes to the chain and display them
  //delay(500);
    
  // read the state of the pushbutton value:
  buttonState = digitalRead(buttonPin);

  // check if the pushbutton is pressed.
  // if it is, the buttonState is HIGH:
  if (buttonState == LOW) {
    
        shifter.setPin(0, HIGH); //set pin 0 in the chain (first pin, firt register) HIGH
        shifter.write(); //send changes to the chain and display them
        //notice how you only call write after you make all the changes you want to make
        delay(300);
  
        shifter.setPin(7, HIGH); //set pin 14 in the chain (six pin, second register) HIGH
        shifter.write(); //send changes to the chain and display them
        //notice how you only call write after you make all the changes you want to make
        delay(300);
  
        shifter.setPin(14, HIGH);
        shifter.write(); //send changes to the chain and display them
        //notice how you only call write after you make all the changes you want to make
        delay(300);
  
        shifter.setPin(15, HIGH);
        shifter.write(); //send changes to the chain and display them
        //notice how you only call write after you make all the changes you want to make
        delay(300);
  
        shifter.setPin(20, HIGH);
        shifter.write(); //send changes to the chain and display them
        //notice how you only call write after you make all the changes you want to make
        delay(300);
  } 
  else {
        shifter.setPin(0, LOW); //set pin 0 in the chain (first pin, firt register) HIGH
      shifter.write(); //send changes to the chain and display them
      //notice how you only call write after you make all the changes you want to make
      delay(300);
  
      shifter.setPin(7, LOW);
      shifter.write(); //send changes to the chain and display them
      //notice how you only call write after you make all the changes you want to make
      delay(300);
  
      shifter.setPin(14, LOW); //set pin 14 in the chain (six pin, second register) HIGH
      shifter.write(); //send changes to the chain and display them
      //notice how you only call write after you make all the changes you want to make
      delay(300);
  
      shifter.setPin(15, LOW);
      shifter.write(); //send changes to the chain and display them
      //notice how you only call write after you make all the changes you want to make
      delay(300);
  
      shifter.setPin(20, LOW);
      shifter.write(); //send changes to the chain and display them
      //notice how you only call write after you make all the changes you want to make
      delay(300);
  }
  
  //shifter.setPin(0, LOW); //set pin 0 in the chain (first pin, firt register) LOW
  //shifter.setPin(1, LOW);
  //shifter.setPin(2, LOW);
  //shifter.setPin(14, HIGH); //set pin 14 in the chain (six pin, second register) LOW
  //shifter.setPin(15, HIGH);
  
  //shifter.write(); //send changes to the chain and display them
  //notice how you only call write after you make all the changes you want to make
  
  //delay(500);
 
}