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???
03/20/07 08:32
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 		 #135359 - slight warning about 1-wire thermo sensors
Responding to: ???'s previous message
Ive got a 1 wire network around my house which uses ds18x20 devices, there is a slight difference in the timing of the DS18B20 and the DS18S20 so that you do sometimes see the S versions returning a reading of 85.000 degrees which is the error code for an incomplete conversion.Obviously you can just increase the conversion time to take account of this,but its something to be aware of.

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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