this post was submitted on 30 Dec 2023
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Higher error correction makes scanning undamaged QR codes less reliable (huonw.github.io)
submitted 11 months ago by haxor@derp.foo to c/hackernews@derp.foo
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[–] Dumbkid@lemmy.dbzer0.com 1 points 11 months ago (3 children)

Can't remember the last time I scanned a qr code, are they used in some businesses or something?

[–] devfuuu@lemmy.world 2 points 11 months ago

Many restaurants have their menu just being a qr code nowadays. It became usual during covid, but manu stull keep it on the tables. The other day I was told explicitly to use it since they didn't have a physical version.

[–] Quetzalcutlass@lemmy.world 1 points 11 months ago* (last edited 11 months ago)

They're still used for instant login on multiplatform services like Steam or Discord. A device that's not logged in will show a QR code next to the login prompt, and scanning it with a logged in device will show a prompt to allow the other device to log in to your account without needing to enter a username or password.

Other than that, I only see them at restaurants to open their menus in a web browser.

[–] SuddenlyBlowGreen@lemmy.world 1 points 11 months ago

They're pretty useful for sharing wifi logins in person for smartphones, for example.