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You are here: Home / Topics / Microcontroller to RFID reader

Microcontroller to RFID reader

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Microcontroller › AVR › Microcontroller to RFID reader

  • This topic has 4 replies, 4 voices, and was last updated 13 years, 2 months ago by AJISH ALFRED.
Viewing 5 posts - 1 through 5 (of 5 total)
  • Author
    Posts
  • January 31, 2011 at 8:54 am #568
    Heli Joyo Prasetyo
    Participant

    Hello, I’m new in RFID and don’t know how to make RFID reader read. Can you help me ? How RFID reader read with freerunning mode from ATMega8’s command through serial ?
    Note: I use RFID Kanda Starter Kit.

    Thank you..

    January 31, 2011 at 9:09 am #5383
    dagakshay
    Participant

     hello sciencetronot…

    i here i am sending you some of links related to RFID…

     

    What is RFID how does it works??

    http://www.engineersgarage.com/rfid-radio-frequency-identification-and-detection

     

    RFID interfacing using AVR..

    http://www.engineersgarage.com/embedded/avr-microcontroller-projects/rfid-interfacing-circuit

     

    RFID interfacing using AVR interrupt concepts…

    http://www.engineersgarage.com/embedded/avr-microcontroller-projects/interface-rfid-interrupt-circuit

     

    the above two links for AVR interfacing with RFID is using ATmega16 but the same concept is applied on ATmega8… go throught these links… an if face any problem in future let us know we will try to solve that out….

    May 7, 2012 at 8:44 pm #7616
    GUNJAN
    Participant

    Hey all,

        The interfacing of an RFID reader with AtMega8535 boggled me for 2 months until i realised that the only flaw was regarding the connections.
    Please note the connections of the pins. Its really tricky. If u know this weird conventions of MAX232 then interfacing of the reader is very easy. Otherwise it would be really difficult to realise the gamble.

    My friend revealed it to me and am sharing here so that others dont face the same problem.

    Happy engineering!
    cheers!

     

     

     

     

     

     

     

     

    wysiwyg_imageupload:4606:

    May 8, 2012 at 7:26 am #7618
    AJISH ALFRED
    Participant

    When you swap an rfid tag on to an rfid reader, it just receives the secret number inside the tag and send to its serial port. From there you can convert it using serial to ttl converter ( MAX232 ) and receive it into the microcontroller and store it in an array. Then you can compare it with any predefined array. That is the basic idea.

    May 8, 2012 at 7:26 am #7628
    AJISH ALFRED
    Participant

    When you swap an rfid tag on to an rfid reader, it just receives the secret number inside the tag and send to its serial port. From there you can convert it using serial to ttl converter ( MAX232 ) and receive it into the microcontroller and store it in an array. Then you can compare it with any predefined array. That is the basic idea.

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