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Ask HN: Most interesting tech you built for just yourself?

1901 points l2silver | 1 comments | 27 Apr 23 15:04 UTC | HN request time: 0s | source

Maybe you've created your own AR program for wearables that shows the definition of a word when you highlight it IRL, or you've built a personal calendar app for your family to display on a monitor in the kitchen. Whatever it is, I'd love to hear it.
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jo-m ◴[28 Apr 23 08:49 UTC] No.35738987[source]▶
I have a rail line right under my apartment, so I built a small computer vision app running on a Rasperry Pi which records each train passing, and tries to stitch an image of it.

It has a frontend at https://trains.jo-m.ch/.

Edit: it's currently raining and the rain drops are disturbing the images a bit.

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dllu ◴[28 Apr 23 18:48 UTC] No.35745463[source]▶
Have you considered getting a line scan camera for sharper and higher resolution images? I took some train scans with one: https://daniel.lawrence.lu/photos/

Incidentally I also built some tech for it: https://github.com/dllu/nectar but I need to update the readme...

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mcast ◴[28 Apr 23 19:58 UTC] No.35746328[source]▶
Thanks for sharing, those photographs are very clear and sharp (especially this one: https://pics.dllu.net/file/dllu-pics/boston-pcc.jpg) it seems to tickle my brain.
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cinntaile ◴[28 Apr 23 20:46 UTC] No.35746904[source]▶
This reminds me of Wes Anderson movies for some reason.
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1. dllu ◴[28 Apr 23 23:23 UTC] No.35748407[source]▶
I'm a big fan of Wes Anderson's aesthetics and would love to shoot that funicular train from Grand Budapest Hotel (which actually exists --- the Buda Hill funicular) using my line scan camera.