A homebrew binary wristwatch

watch

There are 2 types of people in the world; those who know binary, those who don’t, and those who know ternary. [Emanuele] thought a binary wristwatch is the pinnacle of nerd and set out to build his own. The resulting binary clock not only screams nerd as intended, but is also a functional time piece, as well.

The idea of a binary wristwatch came to [Emanuele] while he was working with PICs at school. Not wanting to let that knowledge go to waste, he used a PIC16F628 microcontroller for this build. There are four LEDs for the hours and six LEDs for the minutes, each attached to a separate microcontroller pin for easy programming.

To keep time, [Emanuele] kept the PIC in sleep mode most of the time, only waking it up when a an internal timer’s register overflows. The watch spends most of its time sleeping, sipping power from a coin cell battery with a battery life that should last weeks, at least.

The entire circuit is tucked away in a PVC enclosure with a wonderful rainbow ribbon cable band. We’re not so sure about how that feels against the skin all day, but it does exude the nerd cred [Emanuele] was looking for.

Comments

  1. tobi says:

    Oh god you messed up the joke. And no, I’m not talking about the third option.

  2. Hack Man says:

    We’re not so sure about how that feels against the skin all day, but it does exude the nerd cred [Emanuele] was looking for.

    As it also exudes phthalates into your skin.

  3. Thats not how the joke goes…
    There are 10 types of people in the world: Those who understand binary, and those who don’t.

  4. rer says:

    This is pathetic.

    • xyzzy says:

      I think it’s pretty damn cool. Sure, it’s not going to sell a million units, but I think it’s quite nicely thought out and packaged for a homebrew project. Stuff like this is why I read hackaday.

  5. Nova says:

    I died a little on the inside when you ruined the joke in the very first sentence. 0b10. 2 is not a valid binary number. Do you even binary bro? ;)

    That aside pretty slick build, at first I thought that was perf board then noticed the traces. It might not feel comfortable against the skin but that seems to be a common trend in fashion/trend/anything to distinguish oneself.

  6. bob says:

    “There are 2 types of people in the world; those who know binary, those who don’t, and those who know ternary” Best version of either joke that I’ve ever heard.

  7. Gdogg says:

    Hahahaha joke fail

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