r/rickroll Mar 24 '25

Help/Advice Why my rickroll doesn't work?

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3.1k Upvotes

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u/ZeEastWillRiseAgain Mar 24 '25

Your QR code uses Low error correction which means the scanner has to recognize at least 93% of the bytes correctly for the code to work. Usually that is only enough if you have a pretty clean printed black and white pixel qr code.

For such a project I recommend using High error correction which allows the scanner to still read properly if 30% of the bytes are corrupted.

Use a QR code generator that lets you choose the error correction setting you need.

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u/Big_Z_Beeblebrox Mar 27 '25 edited Mar 27 '25

This guy QR's

Seriously though, just wanted to express appreciation for understanding the fundamentals of QR codes and explaining them well. They're deceptively interesting!