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   PID: PyGate 1.5   
   TID: PyGate/Linux 1.5   
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   REPLYTO 3:633/10 UUCP   
   Daniel James  wrote:   
   > On 18/11/2025 12:08, The Natural Philosopher wrote:   
   > > As part of my enhancements to the home controller, I want to send email    
   > > warnings of low heating oil level.   
   >    
   > This sounds rather like something I have been planning to do. AAMOI how    
   > are you measuring the oil level?   
      
   FWIW I had one of those Watchman ultrasonic oil tank sensors and I could   
   pick up the reading via rtl_433 and a cheap RTL2832-based DVB TV dongle.   
   (as well as the tyres on the car, and various other gizmos locally).   
      
   Perhaps a wires-free option if you already have such a sensor?   
      
   Theo   
      
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