Asklemmy

43855 readers

1724 users here now

A loosely moderated place to ask open-ended questions

Search asklemmy 🔍

If your post meets the following criteria, it's welcome here!

Open-ended question
Not offensive: at this point, we do not have the bandwidth to moderate overtly political discussions. Assume best intent and be excellent to each other.
Not regarding using or support for Lemmy: context, see the list of support communities and tools for finding communities below
Not ad nauseam inducing: please make sure it is a question that would be new to most members
An actual topic of discussion

Looking for support?

Looking for a community?

Lemmyverse: community search
sub.rehab: maps old subreddits to fediverse options, marks official as such
!lemmy411@lemmy.ca: a community for finding communities

~Icon~ ~by~ ~@Double_A@discuss.tchncs.de~

founded 5 years ago

MODERATORS

What are some creative uses for barcodes (usually QR Codes)? (wikipedia.org)

submitted 2 years ago* (last edited 2 years ago) by Amicchan@lemmy.ml to c/asklemmy@lemmy.ml

9 comments fedilink hide all child comments

I feel that barcodes (usually QR Codes) are underutilized; I forgot about them until I saw this post.

I think barcodes could potentially be used to quickly transmit preset information to war victims.
They could be used to transmit information on platforms that censor: Sharing Lemmy posts on Reddit (even though it's currently redundant due to federation). (I just thought of this.)

you are viewing a single comment's thread
view the rest of the comments

[–] cypherpunks@lemmy.ml 10 points 2 years ago* (last edited 2 years ago) (1 children)

I wouldn't say it's exactly creative, but a common useful application of qrcodes is for communicating wifi network names and passwords. If you use a GNU/Linux distro with NetworkManager, wifi-qr is a nice tool which can not only scan but also generate these phone-compatible wifi qrcodes for any saved wifi network your computer knows about. On debian-based distros, just apt install wifi-qr and run the wifi-qr command and you'll get a qr code right there in your terminal which you can scan with a phone.

edit: actually NetworkManager's commandline tool generates the QR codes itself, so you only need wifi-qr if you want to scan them. Just run nmcli dev wifi show.

[–] ree@lemmy.ml 2 points 2 years ago

Awesome!