XPost: comp.os.linux.misc   
   From: robin_listas@es.invalid   
      
   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?   
      
   --   
   Cheers, Carlos.   
   ES🇪🇸, EU🇪🇺;   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)