Post #2621257

So, updated, slightly. The QR code serves three purposes now. 1. It is a link to my PCB shop as people have been known to ask where they get a magic doorbell, and now we can say scan the QR code. 2. It has embedded in it a date/time, so if used as a delivery photo that data is in the QR as well as on screen. 3. The shop link is a logged redirect so shows me if someone has decoded and accessed the QR code at some later date, suggesting someone may be using as training data? #QR