Prove Your Geek Cred With A Binary Watch

Binary Wrist Watch

After just one prototype, [Elia] has finished his super awesome Binary Wrist Watch.

He designed the PCB in KiCad, using a template for the PIC he found in a standard library — unfortunately it turns out the SSOP-20 PIC footprint in this library was actually a TSSOP-20. Confusingly enough, there was also a TSSOP-20 footprint in the library. Luckily it’s just a few millimeters off so [Elia] was able to just bend the pins in a bit before reflow soldering it in place.

The trickiest part of the project was actually making the wristband. He tried several different styles before settling on a paracord braid design he found on Instructables.

We especially like his quote at the end of the project:

Although not having worn the watch in the presence of normal humans, I can already guarantee that now everyone will be able to easily identify me as a nerd.

Acceptance is the first step in realizing you have an addiction, right?

[via Dangerous Prototypes]


  1. Mrt Lmn says:

    would that mean that in the picture its 6:23PM?

  2. Ivan says:


  3. Trav says:

    Cool, I always liked those. I especially liked the one on HAD last year that had a POV mode that when you swept your arm, displayed the numbers for non-nerds. It had terrible battery life though.

    Side note, I will never wear a cloth watchband again (I believe the paracord falls into this). It’s like a sweatband that has to be removed from the watch whenever it needs washing.

  4. jomegat says:

    I’d hate to try to get one of these through the TSA.

  5. Brad says:

    Pretty cool. Most commercial ones are damn near the size of hockey pucks and way too unwieldy to wear often. This one looks a better size.

  6. RandyKC says:

    Msp430 vs PIC. I know Elia was just wanting a project to use to get familiar withe the PIC family, but who currently holds the low power crown, TI or MicroChip?
    (btw – top row 6 bit hour, bottom row 6 bit minute)

  7. la says:

    Looks great! Does not surprise me in the slightest the problems with Kicad libraries though.

  8. Mike says:

    I don’t see how to read the time.
    How does the first and second row interact?

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s


Get every new post delivered to your Inbox.

Join 96,459 other followers