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???
06/24/06 22:29
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#119031 - Traced circuit to the PIC on the board
Responding to: ???'s previous message
Kai,

Thanks for answering my post about the digital pot. I checked with an ohm meter and the 2k Mechanical pot is connected to Pin 1, Pin 3 (center tap of the 2k pot), Pin 8 of a PIC16F870. I looked at the data sheet for the PIC and it must be the inputs to the A/D converter. I have never done any work with PIC's and just starting with 8052 to try and control this water heater.

Got any suggestions as to where I can get a Digital Pot this small?

I will email Maxim and any other digital pot manufacturers also.

Thanks

Mike Ruoppoli

List of 24 messages in thread
TopicAuthorDate
Looking for 2k ohm digital pot            01/01/70 00:00      
   Take care...            01/01/70 00:00      
      Checking the voltage during operation            01/01/70 00:00      
      Traced circuit to the PIC on the board            01/01/70 00:00      
         hmmm            01/01/70 00:00      
         I would be very careful            01/01/70 00:00      
   ?            01/01/70 00:00      
      This is how the Mechnical Pot works            01/01/70 00:00      
         Am I missing something ?            01/01/70 00:00      
            What would be the fun..            01/01/70 00:00      
               The fun would be to avoid a barbecue            01/01/70 00:00      
               fun vs safety            01/01/70 00:00      
                  Exactly!!            01/01/70 00:00      
                  Already installed on the unit            01/01/70 00:00      
         thankless water heaters            01/01/70 00:00      
            Oh yes there is...            01/01/70 00:00      
               no way feasible, not no way in the world            01/01/70 00:00      
                  Valve in the outlet            01/01/70 00:00      
            There is always the controled facsets            01/01/70 00:00      
               how fast are they?            01/01/70 00:00      
                  Flush fast            01/01/70 00:00      
                     The unit has no flow control or sensor            01/01/70 00:00      
                     that will depend on the plumbing            01/01/70 00:00      
                  Showers            01/01/70 00:00      

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