How do QR codes work? (I built one myself to find out)
youtu.be
How do QR codes work? The checkerboard patterns taking over the world, demystified. Go to https://Saily.com/veritasium and use the code ‘veritasium’ to get a...
    • UraniumBlazer@lemm.eeOPEnglish
      1·
      1 month ago

      Very interesting video, I had no idea the level of redundancy built into QR codes.

      RIGHT?!! Same here. I didn’t know there was SO MUCH of thought put behind QR codes. I always assumed they were just bits visually represented in 2D with the three black squares being there for alignment purposes. Turns out it is a lot more complicated than that hehe

      Thanks!

      Np <3

    • 200ok@lemmy.worldEnglish
      1·
      1 month ago

      Same! And now I know why my phone is able to scan a QR code, even when it’s only partially in the frame/border that comes up.

  • Semi-Hemi-Lemmygod@lemmy.worldEnglish
    1·
    1 month ago

    I remember back when they first started getting popular I was at a conference and told a marketing person that we should make one instead of giving folks a long url. The marketing person said “I don’t know if we have the budget to register one.”

    I used to think that this was because the marketing person didn’t know how they worked, but now I know that they thought it worked like UPCs.

    Shout out to Masahiro Hara for not asserting his patent rights so this incredibly useful tool could be free.