Distance measurement

Discussion in 'The Projects Forum' started by kiranr, May 1, 2009.

  1. kiranr

    Thread Starter Member

    May 1, 2009
    25
    0
    hi....
    I'm new here , so if something is wrong please correct me

    I want to find out whether a receiver is moving away from the sender.
    The method is not specific.I just want to find out whether the 2 are moving away or nearer over a maximum distance of 5 m.(no measurement in m is required) .I prefer if this is possible without using anything complicated like a μc but i might be hooking this upto the parallel port of a computer.

    PS.the project is to make a robot whose arm would follow you.The sender part would be worn and the receiver would check whether the arm is moving nearer or farther when the motor starts.if it is moving farther the the motor would reverse.the controls would probably be done with a computer.
     
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