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I print wifi QR codes on wood signs and on cork coasters for Airbnb/VRBO hosts. It's a good little side business. https://www.etsy.com/shop/ligninandlight?sect

I print wifi QR codes on wood signs and on cork coasters for Airbnb/VRBO hosts. It's a good little side business. https://www.etsy.com/shop/ligninandlight?section_id=28828952 https://www.etsy.com/shop/ligninandlight?section_id=28828952

Fnoord 4y ago
Nice, but I don't like such being forced to be a static PSK. Instead, could also make an e-paper device for this. Perhaps it would work on badgerOS?
- langsoul-com 4y ago
  Isn't there qr codes that can automatically update their values? That could work. Otherwise just buying those picture viewers and setting a qr image would be easiest.
  - dangrossman 4y ago
    A picture of a QR code will always be the same QR code. There are QR code generators that purport to let you update the value... but they're basically just hosting a link shortener service, giving you a QR code encoding that link, and letting you change where the link redirects to. That wouldn't work with a QR code for wifi, since the QR code does not point to a link, it directly encodes the SSID and password for a wifi network.
    - silentguy 4y ago
      Can the http link not be directed to other protocols like FTP, or WIFI:T:WPA;S:{ssid};P:{password};; in this case? I guess this might have some security implication. And, some clients can block such redirection. I tried with HTML href on my mac. It didn't work. Maybe it'd work on phones.
      - Fnoord 4y ago
        The dynamic vs static is also one of the criticisms to NFTs. They're just links to dynamic content in a distributed database. The content itself could change any time, or go down. But it looks like it works (there's a word for this: scam). How would you use a dynamic link like HTTPS URL shortener if you're trying to achieve internet access? You could overcomplicate it with another AP which only works with QR code. A colleague once painted a QR code, kinda cool its possible and it worked, but its no magic. Its just static content. If you want it to be dynamic, e-ink is perfect for this purpose. It doesn't require electricity, only if you change the content. So if it is say a Raspberry Pi Zero, it could be powered off, and only get powered on when required (even the e-ink screen itself could be detached). I know they use captive portals a lot for this purpose but I don't see how say WPA2/3 Enterprise could not work for this.
      - c22 4y ago
        How is your guest going to visit the link when they're not yet connected to the wifi?
vanadium 4y ago
I 3D printed a QR code puck for my house wi-fi. It's an easy demonstration of at-home fabrication that elicits some conversation, without having to hand over a password.
- yjftsjthsd-h 4y ago
  > without having to hand over a password. I mean, you're still giving them the password, just in machine readable format.

Fnoord 4y ago

Nice, but I don't like such being forced to be a static PSK. Instead, could also make an e-paper device for this. Perhaps it would work on badgerOS?

langsoul-com 4y ago
Isn't there qr codes that can automatically update their values? That could work. Otherwise just buying those picture viewers and setting a qr image would be easiest.
- dangrossman 4y ago
  A picture of a QR code will always be the same QR code. There are QR code generators that purport to let you update the value... but they're basically just hosting a link shortener service, giving you a QR code encoding that link, and letting you change where the link redirects to. That wouldn't work with a QR code for wifi, since the QR code does not point to a link, it directly encodes the SSID and password for a wifi network.
  - silentguy 4y ago
    Can the http link not be directed to other protocols like FTP, or WIFI:T:WPA;S:{ssid};P:{password};; in this case? I guess this might have some security implication. And, some clients can block such redirection. I tried with HTML href on my mac. It didn't work. Maybe it'd work on phones.
    - Fnoord 4y ago
      The dynamic vs static is also one of the criticisms to NFTs. They're just links to dynamic content in a distributed database. The content itself could change any time, or go down. But it looks like it works (there's a word for this: scam). How would you use a dynamic link like HTTPS URL shortener if you're trying to achieve internet access? You could overcomplicate it with another AP which only works with QR code. A colleague once painted a QR code, kinda cool its possible and it worked, but its no magic. Its just static content. If you want it to be dynamic, e-ink is perfect for this purpose. It doesn't require electricity, only if you change the content. So if it is say a Raspberry Pi Zero, it could be powered off, and only get powered on when required (even the e-ink screen itself could be detached). I know they use captive portals a lot for this purpose but I don't see how say WPA2/3 Enterprise could not work for this.
    - c22 4y ago
      How is your guest going to visit the link when they're not yet connected to the wifi?

vanadium 4y ago

I 3D printed a QR code puck for my house wi-fi. It's an easy demonstration of at-home fabrication that elicits some conversation, without having to hand over a password.

yjftsjthsd-h 4y ago
> without having to hand over a password. I mean, you're still giving them the password, just in machine readable format.