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a guest Oct 21st, 2019 109 Never
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  1. /*
  2.   Escribir un número decimal a binario usando leds
  3.  
  4.   @autor parzibyte
  5.   @web parzibyte.me
  6. */
  7.  
  8. #define PIN_CLOCK 2
  9. #define PIN_LATCH 3
  10. #define PIN_DATA 4
  11. void setup() {
  12.   /*
  13.     Al final de todo, son pines de salida,
  14.     y debemos establecerlos como tal
  15.   */
  16.   pinMode(PIN_CLOCK, OUTPUT);
  17.   pinMode(PIN_LATCH, OUTPUT);
  18.   pinMode(PIN_DATA, OUTPUT);
  19.  
  20.   /*
  21.     Simplemente vamos a escribir un valor
  22.   */
  23.   digitalWrite(PIN_LATCH, LOW); //Le decimos que vamos a escribir algo...
  24.   shiftOut(PIN_DATA, PIN_CLOCK, LSBFIRST, 20); //Lo escribimos
  25.   digitalWrite(PIN_LATCH, HIGH) ; //Y le indicamos que lo guarde
  26. }
  27. void loop() {}
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