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Show HN: I built a JavaScript-powered flipdisc display

flipdisc.io

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Re: Show HN: I built a JavaScript-powered flipdisc display

#34

Post by spankalee »

leetharris wrote: post #33

This is so cool. I love to see Javascript used for stuff like this. It blew my mind that the James Webb Telescope uses a custom Javascript runtime for a lot of the onboard functions.

The SpaceX Dragon capsule touchscreens run an HTML/JS app built using web components (Polymer) :D

Re: Show HN: I built a JavaScript-powered flipdisc display

#35

Post by dang »

pvg wrote: post #26
simpsoka wrote: post #24

Earlier quoted context omitted.

Sorry, I don't know how that got added. It's https://flipdisc.io/

It's this misline in your html http://localhost:4321/ "> HN extracts these.

And handles them inappropriately, it seems, since we converted the URL to https://flipdisc.io/http://localhost:4321/.

I've fixed it now.

Re: Show HN: I built a JavaScript-powered flipdisc display

#37

Post by omoikane »

> near limitless lifespan

The lifespan is probably not as limitless as you might have imagined, the discs tend to fall off or get stuck. But they are really neat while they are working, especially how they sounds.

I was at an office with these flip dot displays, and eventually we dismantled the display. I took some picture of the pieces and you can see how stuck discs look like:

https://photos.app.goo.gl/onpHefUVL8oeP4si7

Re: Show HN: I built a JavaScript-powered flipdisc display

#39

Post by simpsoka »

omoikane wrote: post #37

> near limitless lifespan The lifespan is probably not as limitless as you might have imagined, the discs tend to fall off or get stuck. But they are really neat while they are working, especially how they sounds. I was at an office with these flip dot displays, and eventually we dismantled the display. I took some picture of the pieces and you can see how stuck discs look like: https://photos.app.goo.gl/onpHefUVL8oe…

For sure. They're similar to butterfly wings. It's easy to lose or break discs. Our kids loved touching them while we were building, and we'd constantly have to replace discs that fell off.

Re: Show HN: I built a JavaScript-powered flipdisc display

#40

Post by yojo »

scosman wrote: post #36

Love this. Reminds me of the “flip flap” boards in old train stations. Like https://www.vestaboard.com/

Man I love those things. I have warm memories of standing in Italian train stations as a kid and letting the clacking wash over me when they did a full board refresh. It’d fade out like a rain stick as the stragglers that started furthest from their target letter trickled in.

Now it’s all LED, which is way more practical and so much less magical.

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