From: tnp@invalid.invalid   
      
   On 01/01/2026 04:29, Robert Riches wrote:   
   > I have seen embedded devices where an an LED was intentionally   
   > toggled every so often if everything was working properly.  If   
   > the RTOS or something connected to it were to hang, the LED would   
   > get stuck either off or on.   
      
   I've got several here. My Ethernet switches have LEDS to indicate   
   'normal activity'   
   My Pi PICO thermometers blink to show successful transmission to  the   
   server.   
      
   A light is a simple way to show activity in a circuit that lacks sound   
   or a screen   
      
   --   
   All political activity makes complete sense once the proposition that   
   all government is basically a self-legalising protection racket, is   
   fully understood.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)