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After customer swipe the card, I need to get customer card no, name,expirary date , debit amount from customer, credit amount to shopman account
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Updated 2-Jun-15 19:24pm
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[no name] 3-Jun-15 1:18am    
You need to come up with a (very?) specific question. Read the FAQ.
Sergey Alexandrovich Kryukov 3-Jun-15 1:22am    
I guess the only (very fuzzy) requirement is that the question should be qualified and reasonable.
We are answering many very, very general questions, but we can answer them because they can still make perfect sense and, despite of their general nature, are not too vague.

—SA
[no name] 3-Jun-15 1:30am    
The FAQ states "Be specific! Don't ask 'I need to write a booking application'. Specify exactly what it is you need help with." I agree that remains fuzzy but some of the very general answers to very general questions do not seem to add much to this forum.
Sergey Alexandrovich Kryukov 3-Jun-15 1:50am    
Some do, and this is enough for justification. I would not discourage very general question. After all, this lies in the fundamentals: what's the value of our resource. Of course, our views on the value of different posts will always be different. Everything which is supported by the interests of some part of members can be considered as valuable.
—SA

1 solution

Card readers typically come with two interfaces

a) a 'serial' interface possibly with a USB -> virtual Serial port
b) a 'keyboard' interface whereby it looks like the input is being typed at the keyboard

what ever the case, you need to RTFM - ie the supplier manual and/or SDK that came with your device, and play with any samples they have included
 
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