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- Newsgroups: sci.electronics
- Path: sparky!uunet!nwnexus!daniel
- From: daniel r. mauch <daniel@halcyon.com>
- Subject: Magnetic Swipe Reader Decoders
- Message-ID: <kwRVTB1w165w@halcyon.com>
- Originator: bbs@halcyon.com
- Keywords: Magnetic, Swipe, decoders
- Sender: sso@nwnexus.WA.COM (System Security Officer)
- Organization: The 23:00 News and Mail Service
- Date: Sat, 7 Nov 1992 18:01:07 GMT
- Lines: 66
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- Magnetic Card Swipe Reader
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- Some time ago there were several posts about Magnetic Card
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- Readers and how to read the data. One of the files even had a C
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- program called Swipe.C that would read the data when a card was
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- pushed thought the reader and could be displayed on screen or
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- saved to a file.
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- A few weeks ago, I bought a SR&D mag card swipe reader in
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- San Diego for $2.50. Using the information in the files posts
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- dating back to Jan 92 , I was able to connect my swipe reader to
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- my PC and using the program could read and store the contents of
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- the card. The problem was that the data was a columnar listing of
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- 255's and 191's. I have deduced that the 255 is FF hex or 1111
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- 1111. The 191 is BF hex or 1011 1111. Since I am not a
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- experienced programmer, I need some help in determining how to
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- read the data. I want to decode a card so that I can use a mag
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- card reader as an input device for a future robotics devise that
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- I have in mine. Any help would be appreciated.
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- Here is the partial listing that is giving me trouble. To
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- conserve space I list the data in several columns.
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- 255 255 255 255 etc.
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- 255 255 255 255
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- 255 255 255 255
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- 255 255 255 255
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- 255 255 255 191
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- 255 255 255 191
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- 255 255 255 191
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- 255 255 255 255
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- 255 255 255 255
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- 255 255 255 191
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- 255 255 255 191
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- 255 255 255 255
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