This project will be evolving into QR codes in scratch if I can find out the encoding and error correction scheme. The intent is to encode and decode QR 2d bar codes with scratch to see if it can be done and gain a better understanding of the math behind QR codes. Anyone with an english copy of the QR barcode spec please leave me a link. Thanks, campsec Encoded here are 6 single characters played in sequence so you can see how the QR code changes with the different characters. Food for the mind