How QR Codes Are Built

During some coding for a uni assignment, I became interested in how QR codes are generated, and thought it would be an interesting topic for a video. The concepts that QR codes build on go way beyond the level covered in this video, but hopefully this gives a good introduction for those who are just curious.

[christopherwillson]

Most of the "How QR codes work" videos are not actually how they work, but how they are used.
You rang true. Excellent video!

[andylindsaytunes]

There are countless videos claiming to do it, but this is the only vid that claims to explain how QR codes work, that actually does explain how they work.

[jupeter]

I was literally searching whole of YouTube for

[ellipsiswellbeing]

I made the effort to sign in to google, just to give this video the recognition it deserves. As others have noted, very few other videos explain exactly how QR codes work - thank you for such a clear video!

[nosknut]

Awesome work! Thank you for not just making a "long list of no information" like everyone else who seems like their videos are English essays!

[PaulVaucher-CH]

Exactly what I was looking for! A clear, synthetic summary of how QR codes work!

[veganconservative]

Finally! I may not still understand it, but I gathered a lot more of the gist than the other 'instructional' "how do qr codes work" YT vids I watched.

[BigHotSauceBoss]

Man, if only more people like you existed

[beskamir]

That was really cool! Glad I found your channel through Matt Parker's math puzzles.

[pavany]

This really explains how it is built and each cell's importance.

[mushchlowastaken]

excellent video mate. straight to the point, spoken clearly, and exactly what was advertised. subscribing and hoping for more videos in this style :)

[Gustavo.Andreotti]

wow very good explanation. Finally someone REALLY showed how this works

[Nhatanh]

When you invert it, my phone literally pick it up right away. These tech are amazing!

[huanchanic]

if anyone was curius the qr code on the title just says to look up "james explains"

[llspragulus]

This was the best explanation of a QR code. Thanks for this!

[brick_layer]

THANK YOU JAMES. Every other video I clicked was bogus clickbait. This was perfect.

[harshvardhan]

This is the stuff I was looking for almost half an hour.

[oceanman]

Somebody who gives me a propper explanation and not just the history or why qr code is usefull. Thanks!

[antoniogabrielchaconmenke]

Oh wow, that was a really good explanation, and in just ~6 minutes! Great video

[ascourter]

This was great, thank you for explaining how they are built!