MSGID: <10hh0mr$2r3rh$24@dont-email.me> 80cc4e6f   
   REPLY: <7bat0mxbob.ln2@Telcontar.valinor> 92c32a5b   
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   REPLYTO 3:633/10 UUCP   
   On 12/12/2025 11:19, Carlos E.R. wrote:   
   > On 2025-12-12 11:26, The Natural Philosopher wrote:   
   >> On 11/12/2025 21:06, Carlos E.R. wrote:   
   >>> On 2025-12-10 11:24, The Natural Philosopher wrote:   
   >>>> On 10/12/2025 10:02, c186282 wrote:   
   >>>>> On 12/10/25 04:14, Andy Burns wrote:   
   >>>>>> c186282 wrote:   
   >    
   >    
   >>>> Now off to write the software that will look at it for me and warn    
   >>>> me of things by email.   
   >>>> So I can get on with the next project.   
   >>>   
   >>> You mentioned thieves stealing fuel. You can also monitor for that.    
   >>> You would need a fuel flow meter on the fuel line, or a sensor    
   >>> telling when the furnace is working. Compare with the tank level    
   >>> decreasing rapidly.   
   >>>   
   >>   
   >> The problem is that the sensor I built on the tank has no power except    
   >> batteries: So it only wakes up occasionally and draws nanoamps in    
   >> between.   
   >> I have completed the warning software that looks for low oil levels,    
   >> loss of communication, a failing battery and unexpected changes in oil    
   >> level, BUT it cannot do that in real time as the unit is only powered    
   >> up for a minute or so every couple of hours.   
   >>   
   >> Depending on how long the batteries last I may increase the frequency    
   >> of operation. But it can never be 'real time'   
   >    
   > Ah.   
   >    
   > What about a small solar panel and rechargeable batteries?   
   >    
      
   Yes. That is in the 'lemme think about that' pile...   
   Not that there is much sun here..   
      
   At this time of year.   
      
   And where the tank it is likely to get overgrown or shat on by birds   
      
      
      
   --    
   ?The ultimate result of shielding men from the effects of folly is to    
   fill the world with fools.?   
      
   Herbert Spencer   
      
      
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