What, you didn’t think it would work…?
This gallery contains full and detail views of a QR code pointing to this site. This was one of my first successful QR code paintings. After getting the code, I used a Sharpie to draw alternating diagonal lines where the dark squares should be. The remaining light squares were painted orange with acrylic paint. This alone wasn’t high enough contrast, so I added purple tissue paper squares over the purple stripes and white paint over the orange squares.
Take a picture of the screen to see it in action. See you in a minute.