Making the QR reader
The lid of an iPad box had slots cut in relevant places (to allow access to power inlet etc) and to allow a clue card which had a QR code on it to be slipped under the camera. Ribbon spools were found to be the correct height and were taped to the iPad security case. The i-nigma QR code reader has been found reliable and it is simple to use with nice big button and beep sound when code is read (which children found satisfying!). We did all this because people seem to find bringing the label to the reader easier than aligning the camera to the QR code.
10 photos · 70 views