Encode data in 2D on your T-shirts, business cards and stickers !

Encode data in 2D on your T-shirts, business cards and stickers !

QR code (http://en.wikipedia.org/wiki/QR_Code) is a 2D bar code used to encode fair amount of data in a sort of 2D bar code. This code can then be read by cell phones or barcode readers. My choice is for QR Code as it is one of the most used and a simple encoder / decoder for PC and mobile phones is readily available for free.

Another code is Data Matrix (http://en.wikipedia.org/wiki/Data_Matrix) which is now having some backup from both the US Govt and the electronic industry which is planning to add extra information on top of chips and small components: these would be read by automatic assembly machines for a more reliable and foolproof assembly of boards.

PC and mobile phones encoders/decoders are available for Datamatrix as well, but I went for QR code and basta ! No, actually I tried some free Datamatrix decoders and proved less reliable, on my phone at lest, than the QR decoder I am showing here.

via Encode data in 2D on your T-shirts, business cards and stickers !.