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- Summer 2005 Project - 

- Bluetooth and RFID - 

- Issues -

 

Here are some known issues with our application:

  • The application only works with the 5 tags that we use in our demos

    The reason: in order for a RFID tag to be written or read a command in the form of a byte array is sent. These commands need to have an appropriate format and two-byte CRC value. We ran into problems with the CRC calculation and thus were able to hardcode the RFID command for these specific tags and specific strings of data.

    The solution: there is a file called CRC.java which is creates various commands as byte arrays to send to the RFID. It is incomplete because the RFID function is not yielding correct results. If this is fixed so the CRC value is correct and appended to the byte array, one could create any commands for any tag and any data values.

     --> get CRC.java here <--

 

  • Sometimes the Bluetooth connection stops working without apparent reason

    The reason: we suspect it is something with the Bluetooth stack but all we know for sure is that the problem does not come from the code of the application.

    The solution: one suggestion we had was to switch to Windows 2000 but we did not try that. However, the problem is usually solved if one or both PCs are restarted. 


 

Maria Kazandjieva, makazand[at]mtholyoke[dot]edu, Summer 2005

 
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