read data from ID TECH credit card readers
This is a python module for reading the data from an ID TECH credit card reader connected via serial port (RS-232) or USB-CDC. It was written using an ID TECH Spectrum III MagStripe Only, Insert Reader, model number SPT3-355-12-1NN0N-0C.
The serial protocol is documented here (the URL says .html, but it triggers the download of a PDF): http://www.idtechproducts.com/download/insert-readers/doc_download/413-users-manual-sptiii-moir-product-family.html
It requires pySerial: http://pyserial.sourceforge.net/