Question regarding AT89S51

Discussion in 'Embedded Systems and Microcontrollers' started by Jason1983, Aug 21, 2006.

  1. Jason1983

    Thread Starter New Member

    Aug 21, 2006
    1
    0
    Hi, im new here. Hope u guys would able to help me in this matter regarding AT89S51 microcontroller.
    Im currently doing a final year project. I've been thinking for sometime and thought of this idea of doing a security system for house.
    Im using motion sensor to detect movement in the house.
    My question is can i use the output of the sensor to activate my microcontroller?
     
  2. Papabravo

    Expert

    Feb 24, 2006
    10,135
    1,786
    If we knew something about your sensor we might have a snowball's chance of answering your question. Kindly provide more details.
     
  3. efm

    Member

    Sep 14, 2006
    14
    0
    hello,
    you want to activate the microcontroller in the meaning of....?
    if you mean to power up the micron, hehe, i don't know how to do it
    but if you plan to start the routines in microcontroller, then just connect the trigger (be it
    adc's output, or a switch that change state whenever the sensor reads something) to the
    microcontroller's interrupt pin.

    faizal
     
  4. sci-3d

    Well-Known Member

    Aug 22, 2006
    51
    0
    What the kind of sensor you use are?
    The most sensor output is analog.
    The modern chip like 89PLCxxx family provides internal ADC.
    That my idea. :D
     
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