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???
03/19/07 16:09
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#135303 - Re Easy
Responding to: ???'s previous message
Andy Neil said:

So, like Jez, I don't think it's really fair to call this "easy" - it's not really difficult, but it's not trivial.


I see no problems.
Simple implement the four basic functions (send reset, send one-bit, send zero-bit, receive bit) and collect them like described in the data sheet.

Maybe some beginner understand not the ROM search method, but this was not needed on only one sensor per wire.


In opposition, I think, most beginners fear analog schematics and mathematics to calculate the ADC result.
And these all was not needed on a digital solution.


Peter


List of 34 messages in thread
TopicAuthorDate
thermometer with a 89c52            01/01/70 00:00      
   e-mail            01/01/70 00:00      
   You\\\'ve got lots of options including...            01/01/70 00:00      
      Options            01/01/70 00:00      
   start by making your A/D convertor work            01/01/70 00:00      
      What the hell are you posting??            01/01/70 00:00      
      Not for a direct-to-digital sensor!            01/01/70 00:00      
   Link            01/01/70 00:00      
   Background?            01/01/70 00:00      
      thanx            01/01/70 00:00      
         Project?            01/01/70 00:00      
            hobby            01/01/70 00:00      
               Plenty of time to think, then!            01/01/70 00:00      
   Thermistor, 12-bit ADC, 89S52 and LED display            01/01/70 00:00      
      lm35            01/01/70 00:00      
         Thermistor Thermometer: LCD version            01/01/70 00:00      
            Think!            01/01/70 00:00      
         Interesting links that have to do with the LM35            01/01/70 00:00      
            Interesting links on how to make a simple ADC...            01/01/70 00:00      
            You forgot the most important one            01/01/70 00:00      
               I was assuming that he was already there!            01/01/70 00:00      
   the easy way            01/01/70 00:00      
      Easy?            01/01/70 00:00      
         Re Easy            01/01/70 00:00      
            There's the problem!            01/01/70 00:00      
            My friend's opinion            01/01/70 00:00      
               I hope analog            01/01/70 00:00      
                  In that case            01/01/70 00:00      
               understanding basics            01/01/70 00:00      
                  slight warning about 1-wire thermo sensors            01/01/70 00:00      
                     Parasite power?            01/01/70 00:00      
                        yep parasite power            01/01/70 00:00      
               not believeable !            01/01/70 00:00      
                  timing diagrams can look daunting.            01/01/70 00:00      

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