[아두이노] Multiple LEDs

간단한 예제로.. 순서대로 LED가 켜지고 꺼지는 방식이다


int ledPins[] = {2,3,4,5,6,7,8,9};

void setup()

{

  for(int i = 0; i < 8; i++){         //this is a loop and will repeat eight times

      pinMode(ledPins[i],OUTPUT); //we use this to set each LED pin to output

  }                                   //the code this replaces is below

 

}

 

void loop()                     // run over and over again

{

  oneAfterAnotherNoLoop();   //this will turn on each LED one by one then turn each off

}

 

void oneAfterAnotherNoLoop(){
 

  int delayTime = 100; //the time (in milliseconds) to pause between LEDs

                       //make smaller for quicker switching and larger for slower

  digitalWrite(ledPins[0], HIGH);  //Turns on LED #0 (connected to pin 2 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[1], HIGH);  //Turns on LED #1 (connected to pin 3 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[2], HIGH);  //Turns on LED #2 (connected to pin 4 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[3], HIGH);  //Turns on LED #3 (connected to pin 5 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[4], HIGH);  //Turns on LED #4 (connected to pin 6 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[5], HIGH);  //Turns on LED #5 (connected to pin 7 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[6], HIGH);  //Turns on LED #6 (connected to pin 8 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[7], HIGH);  //Turns on LED #7 (connected to pin 9 )

  delay(delayTime);                //waits delayTime milliseconds  

 

//Turns Each LED Off

  digitalWrite(ledPins[7], LOW);  //Turns on LED #0 (connected to pin 2 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[6], LOW);  //Turns on LED #1 (connected to pin 3 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[5], LOW);  //Turns on LED #2 (connected to pin 4 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[4], LOW);  //Turns on LED #3 (connected to pin 5 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[3], LOW);  //Turns on LED #4 (connected to pin 6 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[2], LOW);  //Turns on LED #5 (connected to pin 7 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[1], LOW);  //Turns on LED #6 (connected to pin 8 )

  delay(delayTime);                //waits delayTime milliseconds

  digitalWrite(ledPins[0], LOW);  //Turns on LED #7 (connected to pin 9 )

  delay(delayTime);                //waits delayTime milliseconds  

}

 

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