a version 1 QR code with maximum error correction can store 7 bytes. That’s 2⁵⁶ possible codes. Here are the first 1,043 of them-

Nice! You might like my QR Clock

Oh nice! An easy way to tell the time using your phone 😀

Haha exactly, yes! I've phrased it as "Just in case you ever need to check the time and only have your phone and also another screen with internet access." 😅

Yeah but can it play Bad Apple?

this is mesmerizing

This is really fun 😊😂

Love this qr nerd shit

Would have looked cooler if the mask was consistent

I considered that! But the mask is chosen deterministically by the spec to avoid large uniform regions, so different data often picks a different mask. Forcing one would produce non-standard codes.

(72 quadrillion)

72,057,594,037,927,936 🙂

> That’s 2⁵⁶ possible codes Not quite if you remember masks exist. 2^59

…the mask is deterministically chosen by the spec, so each payload maps to exactly one valid QR code. Still 2⁵⁶.

The post mentions possible codes. I know there are encoders that don’t conform to the specification, and decoders still handle them just fine. Saying that there are 2^56 *possible* codes is, in my opinion, not correct. Logically, would the remaining 7 variants be im-possible? No. But I really liked the visualization :-)

But that doesn’t account for the orientation square. I thought that was part of all versions?

Not quite sure what you are asking! The finder patterns in the corners determine the orientation

QR code was the last one made by Japan. We have no technology anymore.

that's pretty neat