There are plenty of QR generators which will render the code in ASCII, but I wanted to try something a little different. Is it possible to hide ASCII Art into QR Codes?
Errr.... yes... It's pretty damn simple! I was surprised I couldn't find anyone else doing this.
(\_/) (='.'=) (")_(")
Becomes:
Which, when scanned, renders as:

Now, there are limits as to what you can put into a QR code - about 4,000 characters. Different devices have different screen widths, which limits the ability to include fully featured ASCII Artworks like the Mona Lisa
2 thoughts on “ASCII Art in QR Codes”
Richard
What about the other other way round? Is it possible to make a QR code that has recongnisable shapes in it, and a bonus if that can be mapped to say a URL?
@edent
Yes. QR codes contain error correction. So you can introduce other graphics into them and they will still be readable. I've written a bit about it at https://shkspr.mobi/blog/2010/11/hiding-space-invaders-in-qr-codes/