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'Magnetic Stripe Encoder HELP !!!!!'
2000\04\14@125506 by Diego Noal

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Hi all!
I' needing a magentic stripe encoder ( schematics and software )
Can anyone helpme ??
Best regards,
Diego

2000\04\15@083129 by paulb

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Diego Noal wrote:

> I' needing a magentic stripe encoder ( schematics and software )

 This firm (in Australia) http://www.vorlac.com.au/ had some reader/
writer assemblies plus the specs for it.  However you still have to
do the decoding and coding yourself, external to it.  If you want the
assembly, that's good.  Software, bad!

 (Lotsa luck figuring what the firm is called - it's three inter-
related companies.)
--
 Cheers,
       Paul B.

2000\04\16@092045 by John Mullan

picon face
might be a better idea to build a reader circuit ( reader heads are cheaper)
and buy some pre-encoded cards.  you can buy them pre-formatted like floppy
disks.

the head assemblies I have come with two switches. the "first" switch
signals the insertion of a card.  As the stripe travels across the head, an
on-board chip amplifies and delivers pulses for data. the second switch is a
limit type when card is fully inserted.

the only tricky part is decoding pulses.  while '1' is twice the length of
'0' ( or vice-versa I forget), a card may be inserted fast or slow or may
even vary as it is inserted.  most pre-coded cards should come with "known"
sync bits and checksum so your software can figure things out.

just my 2cents worth :)

john mullan


----Original Message-----
  >From:       Paul B. Webster VK2BZC <spam_OUTpaulbTakeThisOuTspammidcoast.com.au>
  >To:         .....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU
  >Cc:
  >Bcc:
  >Subject:            Re: Magnetic Stripe Encoder HELP !!!!!
  >Type:       IPM.Note
  >Date:       April 15, 2000 8:31 AM
  >
  >Diego Noal wrote:
  >
  >> I' needing a magentic stripe encoder ( schematics and software )
  >
  >  This firm (in Australia) http://www.vorlac.com.au/ had some reader/
  >writer assemblies plus the specs for it.  However you still have to
  >do the decoding and coding yourself, external to it.  If you want the
  >assembly, that's good.  Software, bad!
  >
  >  (Lotsa luck figuring what the firm is called - it's three inter-
  >related companies.)
  >--
  >  Cheers,
  >        Paul B.

2000\04\16@093342 by Alan B Pearce

face picon face
You may be able to build one using cartridge tape heads if really pushed for
time.

To observe just where the magnetic tracks are, try and track down some magnetic
tape developing fluid (one trade name was "Magnasee", but there were others.
This sprays on, and as it dries you can see the magnetic pattern. It is a long
time since I had dealings with this stuff, so it may not be available anymore.

If you can get some, then put sellotape down on the developed pattern to pick up
the magnetic pattern, and then stick the sellotape down on paper. A bit like
lifting finger prints. This would then allow you to see where to align the heads
if you use cartridge tape ones.

RS components also do card readers for security door access. Cost probably
horrendous.

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