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Topic: Several Serial Devices (Read 2 times) previous topic - next topic

robtillaart


do you have a link to the datasheet of the barcode reader?

Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

yamandu

Hi,

the specs for the scanner are here
https://docs.google.com/open?id=1UATrfNBpafU1nfoPEwpVw5Oky_B7SpJIgnsRFYZIqQmgxZASBI61l2Mp2M4I

I have replied the manufacturer and will wait...

Interestingly I am reading a EAN13 barcode with this number 7896672201424
but in arduino I read this values: 100,76,204,102,38,102,102,230,166,230,102,230,166,0

Looks like nothing was damaged. But is kind of a decoding problem.

robtillaart

The number of digits seems correct (assuming the 0 is an indicator for END OF CODE)
but the numbers do not make sense at all (at least for me), looking at them binary does not help either.

Can you post the barcode itself - image or description -
sw = small white
ww = wide white
sb = small black
wb = wide black

maybe the bitstream encodes the raw barcode before ascii conversion... (datasheet gives no clue)





Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

yamandu

robtillaart, I am thinking the same way, but have no results on decrypting this thing yet.

The barcode scanned is attached here.

I have read about the EAN 13 encoding but hadnt helped.

This thing is such a puzzle.

robtillaart

have you read wikipedia - http://en.wikipedia.org/wiki/European_Article_Number - might help to decode it

if this is teh code there might be 3 different codes used simultaneously !
Rob Tillaart

Nederlandse sectie - http://arduino.cc/forum/index.php/board,77.0.html -
(Please do not PM for private consultancy)

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