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Files 15-second binary countdown timer
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15-second binary countdown timer

I was just playing around trying to get different LEDs to flash at different rates, so I created this.  I realized that if I set the delay to 1000 milliseconds, I could use it as a clock of sorts.

 

/*

  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);

    }

}

}

  • binary
  • timer
  • countdown
Former Member
Former Member
  • 6 Jan 2016
  • 3 Downloads
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Top Comments

  • shabaz
    shabaz over 9 years ago +1
    Hi Ken! There is an Ínsert Video'button in the editor, if you use that, the system will upload your video, and auto-convert it so that it appears as an embedded window in the browser when people view this…
  • Former Member
    Former Member over 9 years ago in reply to shabaz

    Since this isn't a "blog" post, i don't get the same menu.

     

    I added a blog post and mentioned you guys.... Thanks!!!

     

    Ken

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  • tomaja
    tomaja over 9 years ago in reply to Former Member

    I'm using Mac and it works fine.

    Do you see this at the top right?

    image

     

    If you do, you need to click the Show Full Editor...

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  • shabaz
    shabaz over 9 years ago in reply to Former Member

    Hi Ken,

     

    It shouldn't, but I don't use a mac so cannot check : ( But I'd be very surprised if it is a Mac/Safari issue.

     

    Do you see no icons in the editor? The view is a little different (less icons) when writing comments to a post, but when you create content

    (blog posts, documents, etc) then you will see the view as shown above.

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  • Former Member
    Former Member over 9 years ago in reply to shabaz

    None of that is showing up in my browser window.   I am using a mac.  Do you think that makes a difference?

     

    Ken

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  • shabaz
    shabaz over 9 years ago

    Hi Ken!

     

    There is an Ínsert Video'button in the editor, if you use that, the system will upload your video, and auto-convert it so that it appears as an embedded window in the

    browser when people view this page, so that they can view by streaming (saves requiring people to download the 4.8MB file, in case they want to just scroll through bits

    of it, and it also streams at different speeds depending on the available bandwidth). Looking forward to checking out the video!

     

    Similarly, there is a button for formatting the code, so that it appears nicely syntax-highlighted (for Arduino code, just select the c++ option).

    image

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