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Thread: Help Needed(Remote Control)

  1. #1
    digital_arts
    Guest

    Default Help Needed(Remote Control)

    Hi Friends,
    I am planning to make a Radio Controlled robot. For that I need to send digital data via radio waves. Can anyone tell me how to do that?

    I have two PIC 16f84A Microcontrollers that I can use in the transmitter and receiver.Please help.

    I also want to know how to use a photo transistor with MCUs.
    E-Mail avinashjsr@sify.com

  2. #2
    Senior Member Cyborg
    Join Date
    Feb 2005
    Location
    MI,USA
    Posts
    160

    Default

    Send your info thru a RS232 radio link....you'll have to made a TX-RX circuit too!

    Alternately make an IR link


    Use a photo transistor to modulate base current for a gen. p. transistor in CE mode . The transistor should be driven into saturation or cutoff only. & take out the output at the collector.

    If your swing is not sharp either increase the collector resistance or pass the signal thru a LM 324 comparator.

  3. #3
    digital_arts
    Guest

    Default

    How can I make a RX/TX?Where can I find info about it.

  4. #4
    Senior Member Android
    Join Date
    Nov 2004
    Posts
    144

    Default

    Buy a readymade RF modules from www.mdclrf.com. Designing a RF module is a big mess, try this http://jap.hu/electronic/rf.html

  5. #5
    Senior Member Android
    Join Date
    Nov 2004
    Posts
    144

    Default

    Buy a readymade RF modules from www.mdclrf.com. Designing a RF module is a big mess, try this http://jap.hu/electronic/rf.html

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