please help help

Discussion in 'Embedded Systems and Microcontrollers' started by theangel, May 22, 2010.

  1. theangel

    Thread Starter New Member

    May 22, 2010
    2
    0
    Project1: CPU FAN Controller based on CPU temperature

    This project is required to control 5 or 12v FAN that cools a CPU.
    The speed of the fan must be adopted according to the CPU
    temperature. At least there are 3 speeds.
    PIC microcontroller must get an analog signal from a thermostat
    connected to CPU and convert this signal to digital and then generate
    PWM signal to control the speed of the fan. In addition to that, The
    temperature (Celsius) and the speed (round per minute rpm) must be
    shown on an LCD and must be updated every second.
     
  2. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    What PIC are you using?
    Where are you stuck? What have you done so far? and When is it due?
     
  3. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    And the ability to code, and having the datasheets for the appropriate components.
     
  4. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Gonna need an op amp to amplify the LM35 output for the A to D.
     
  5. theangel

    Thread Starter New Member

    May 22, 2010
    2
    0
    I'm use pic18f

    pleas quickly...


    thank you...
     
  6. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Have you obtained the data sheets for all the devices? And have you read them to understand how the individual parts function?
     
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