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You are here: Home / Topics / ADC interfacing with 8051uc

ADC interfacing with 8051uc

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Microcontroller › 8051 › ADC interfacing with 8051uc

  • This topic has 3 replies, 3 voices, and was last updated 8 years, 4 months ago by Ashutosh Bhatt.
Viewing 4 posts - 1 through 4 (of 4 total)
  • Author
    Posts
  • April 1, 2014 at 6:32 am #3005
    Dhvanil shah
    Participant

    hi

    I am doing the project of water level conroller.If i am doing only adc then i will get the answer.

    In water level i have maintain the lowest and highest level.for that lowest level my adc pattern is 15h and the highest level my adc pattern is 0ffh.

    As a final control element i will use the relay.

    I willm get the only one answer that is 15h.when i cahange the dloat position i will not getthe change in adc while connectn with the 8051.My program is

    org 0000h

    mov p1,#0ffh

    acall adc

    mov a,p1

    l3:cjne a,#15h,l2

    setb p3.3

    l2:cjne a,#0ffh,l3

    clr p3.3

    adc: setb rd

    setb intr

    clr wr

    here: jb intr,here

    clr rd

    end

     

    April 1, 2014 at 2:39 pm #11440
    AJISH ALFRED
    Participant

    Ok. So what is your question actually ?

    Please make it more understandable for others, so that they can help you better.

    April 1, 2014 at 4:09 pm #11442
    Dhvanil shah
    Participant

    my question is when i am connect 8051uc with my data cannot change.My data is only 15h which is my lowest float position.with the change in float position my data remain 15h.

    April 2, 2014 at 9:15 am #11445
    Ashutosh Bhatt
    Participant

    my friend you dont need ADC at all.

    float gives only two values 0-low or 1-high. you can directly detect this level change through micro controller pin.  but if your float is somewhat different read its manual, to understand its operation

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