Ds18b20

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  1. - 7th June 2009, 18:42 #1
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    hi,
    no replies nothing work tell now i got blank screen
  2. - 8th June 2009, 06:50 #2
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    Put here the schematic, please.
  3. - 8th June 2009, 08:39 #3
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    Hi, Ahmed

    Just comparing the 18B20 Datasheet, page 5 to the 1820 Data., Page 4 will help you to understand how temperatures are coded in both cases ...

    and what you have to modify to get a nice result ...

    Alain
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************
  4. - 8th June 2009, 09:31 #4
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    hi,
    thanks for replay please find attached schematic
    i am trying also to get rom id for ds18b20 but i got only 8 hex digit attached is the code
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  5. - 8th June 2009, 09:44 #5
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    At first, try

    Code:
    ...

for i = 0 to 7
LcdOut HEX2 ID[i] 
next i
...
    should print missing Zeroes ...

    Alain
    ************************************************** ***********************
    Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
    ************************************************** ***********************
    IF there is the word "Problem" in your question ...
    certainly the answer is " RTFM " or " RTFDataSheet " !!!
    *****************************************
  6. - 8th June 2009, 10:34 #6
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    hi,
    acetronics , still got 8 characters only
  7. - 9th June 2009, 06:35 #7
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    hi,
    i update the code to read rom id and i can read it now working code attached , but still can not read temp. any update
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  8. - 9th June 2009, 10:56 #8
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    Here is all that You have need : http://www.picbasic.co.uk/forum/show...hlight=ds18b20
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