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You are here: Home / Topics / adc0804

adc0804

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Microcontroller › 8051 › adc0804

  • This topic has 3 replies, 2 voices, and was last updated 8 years, 5 months ago by Ashutosh Bhatt.
Viewing 4 posts - 1 through 4 (of 4 total)
  • Author
    Posts
  • February 13, 2014 at 5:49 pm #2863
    anamika
    Participant

    pls help me to interface 4 ldr s with ADC0804……pls help me as soon as possible….thank you…

    February 13, 2014 at 6:12 pm #11020
    Ashutosh Bhatt
    Participant

    1st thing why do u need 4 LDR?

    2nd thing why r u using ADC0804?

     

    if you want to get digital output from 4 LDRs then use ADC0809 that has 8 channels.

    another option:  use micro controller with built in 8 channel ADC like AVR or PIC. ATmega16 is best.

     

    finaly if you want to stick with ADC0804 then use 4x1analog  multiplaxer (not digital) before ADC. 

    February 15, 2014 at 1:48 pm #11029
    anamika
    Participant

    thank you sir….i am going to use ADC0808.

    February 24, 2014 at 4:49 pm #11097
    Ashutosh Bhatt
    Participant

    dont forget to provide fixed value biasing resistor before LDR. 

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