velocipederider.com is one of the many independent Mastodon servers you can use to participate in the fediverse.
This is the personal server of Ruari (but Stu is here too).

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Velocipede Rider

Yesterday I had a little panic as I thought my binary watch was broken. It is just a cheap and ugly thing but I do enjoy it nonetheless.

Anyway, for the curious I typed up some of the tricks I use to read it fast.

Web
ruario.vivaldi.net/2023/11/06/

Gemini
gemini://ruario.flounder.onlin

Gopher
gopher://sdf.org/0/users/r0/ph

Did you know you can also glance at a binary watch to approximate the time when you do not need precision?

Oh and another thing.

In the real world you will not see these two LEDs in isolation. You will still have a vague awareness of the others, even if you do not attempt to properly calculate them. More lights (particularly those close to the two right-most LEDs) will give you a rough feeling for how close you are to the crossover times.