Originally Posted by
pogopossum
Where do you scan it and get the output?
PP
The barcode on your boarding pass is apparently plaintext, and the last field is either a 1 or a 3 for the number of beeps.
http://puckinflight.wordpress.com/20...-check-system/
I've got barcode reader software on my iPhone, when I get home I'll try it out on a stack of old boarding passes I have.