suitable component to detect short range below 5m

Discussion in 'The Projects Forum' started by sahazlyn, Mar 20, 2011.

  1. sahazlyn

    Thread Starter New Member

    Mar 20, 2011
    2
    0
    hi,
    i want to ask...
    if i want the range for TX and RX is in below 5m to detect(buzzer at RX make sound), what the suitable component that be able to use?

    if i use RF module for 315MHz,it is suitable for long range communication..so,what component can i use for short range?

    plz answer for me~
     
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,750
    759
    What in the world are you talking about?
     
  3. sahazlyn

    Thread Starter New Member

    Mar 20, 2011
    2
    0
    sorry if u dont understand..
    ok...
    my project is 'sending data using RF modules'..

    the RF component that i use is 315MHz and the range i get quite long..more than 10m..

    i want to ask if the receiver at 6m or more far from transmitter ,i want the receiver not to response, even it receive signal from transmitter. It is possible to do that?
     
  4. CDRIVE

    Senior Member

    Jul 1, 2008
    2,223
    99
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