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Hand Drawn QR Codes (sethmlarson.dev)
jdranczewski 7 minutes ago [-]
I've really enjoyed reading the Grid World piece linked at the bottom of the post: https://alex.miller.garden/grid-world/
keane 2 hours ago [-]
From the update: "Why are QR Codes with capital letters smaller than QR codes with lower-case letters?" https://shkspr.mobi/blog/2025/02/why-are-qr-codes-with-capit... (https://news.ycombinator.com/item?id=43149077)
notTooFarGone 22 minutes ago [-]
If someone needs a gift idea:

I used something like this on a large sheet and cut it into pieces for a puzzle gift to a website where people left comments. Nowadays even easier to generate nice temporary websites for such things.

larsbrinkhoff 1 hours ago [-]
I hand drew this on a whiteboard. It was a lot more work than I anticipated.

http://lars.nocrew.org/tmp/qr.png

larsbrinkhoff 58 minutes ago [-]
By the way, I also coded a QR symbol generator in PDP-10 assembly language.

https://github.com/PDP-10/its/blob/master/src/lars/qrcode.8

karel-3d 37 minutes ago [-]
One time I tried to understand the QR algorithm and I didn't understand it at all despite trying multiple times.

Maybe I can try again with the help of LLMs. Hmm not a bad idea

soblemprolver 24 minutes ago [-]
I found this page very helpful in understanding each step of the QR code creation process. I can't say I recall it all but it would be possible to turn this into a small booklet, I guess.

https://typefully.com/DanHollick/qr-codes-T7tLlNi

Here's a HN discussion from 2022 about it.

https://news.ycombinator.com/item?id=32837565

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