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  • Author Author: Former Member
  • Date Created: Date Created
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15-second binary countdown timer

Former Member
Former Member

Thanks to John, Shabaz and Dragan for helping me.  

 

/*
  binary countdowntime
  Kenneth Thomas January 5, 2016
  Open source..
*/
int greenLED = 13;
int redLED = 12;
int blueLED = 11;
int whiteLED = 10;
int flash = 1000;


void setup() {
  // initialize digital pin 13 as an output.
  pinMode(13, OUTPUT); //green
  pinMode(12, OUTPUT); //red
  pinMode(11, OUTPUT); //blue
  pinMode(10, OUTPUT); //white
}


void loop() {
  for(int x = 0; x < 8; x++){
    if(x==0){
      digitalWrite(10, HIGH);
      digitalWrite(13,HIGH);
      digitalWrite(12,HIGH);
      digitalWrite(11,HIGH);
      delay(flash);
      digitalWrite(11,LOW);
      delay(flash);         
    } else if(x==1){
      digitalWrite(12,LOW);
      digitalWrite(11,HIGH);
      delay(flash);
      digitalWrite(11,LOW);
      delay(flash);
    } else if(x==2){
      digitalWrite(13, LOW);
      digitalWrite(12, HIGH);
      digitalWrite(11, HIGH);
      delay(flash);
      digitalWrite(11, LOW);
      delay(flash);
    } else if(x==3){
      digitalWrite(12, LOW);
      digitalWrite(11, HIGH);
      delay(flash);
      digitalWrite(11, LOW);
      delay(flash);
    } else if(x==4){
      digitalWrite(10, LOW);
      digitalWrite(13,HIGH);
      digitalWrite(12,HIGH);
      digitalWrite(11,HIGH);
      delay(flash);
      digitalWrite(11,LOW);
      delay(flash);         
    } else if(x==5){
      digitalWrite(12,LOW);
      digitalWrite(11,HIGH);
      delay(flash);
      digitalWrite(11,LOW);
      delay(flash);
    } else if(x==6){
      digitalWrite(13, LOW);
      digitalWrite(12, HIGH);
      digitalWrite(11, HIGH);
      delay(flash);
      digitalWrite(11, LOW);
      delay(flash);
    } else if(x==7){
      digitalWrite(12, LOW);
      digitalWrite(11, HIGH);
      delay(flash);
      digitalWrite(11, LOW);
      delay(flash);
    }
}
}