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You are here: Home / Topics / rf remote using 12f629

rf remote using 12f629

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Microcontroller › PIC › rf remote using 12f629

  • This topic has 0 replies, 1 voice, and was last updated 12 years, 10 months ago by pipi.
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    Posts
  • July 31, 2012 at 7:48 am #1895
    pipi
    Participant

    hi every body…
    can any one give me schematic of this type of remote key fob?
    these remote r contained of:



    transistor:
    m6
    3em
    r25



    micro:
    pic12f629



    12v battery(27a)



    and so many resistors and capacitors


    i did reverse Engineering on these circuit & found out m6 is a voltage regulator,3em & r25 r high Frequence transistor for rf application.
    i found out there r 2 radio circuit ,r25 circuit which is connected to pin 4 of 12f629 and 3em circuit which is connected to pin 3 of 12f629.
    i cant understand relation between these to circuit.
    this is so confusing!
    i know these type of circuit managed by tow pin of micro.first pin is names “boost” and second pin is named “pulse”. 
    i have more info about that if any one wants to know.
    and there is a interesting way to copying these remote which the main course of this project!
    im waiting for your corporation my friends.

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