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   comp.sys.raspberry-pi      Raspberry Pi computers & related hardwar      26,127 messages   

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   Message 25,250 of 26,127   
   The Natural Philosopher to Adrian   
   Re: USB controlled mains switch   
   19 Jan 25 13:04:34   
   
   From: tnp@invalid.invalid   
      
   On 18/01/2025 23:07, Adrian wrote:   
   > I'm looking for a USB controlled mains switch (230V AC) that I can   
   > connect to a PI to turn a mains power supply on and off.   
   >   
   > I've done a bit of digging around on the net, and the options seem to   
   > fall into two categories, either a relay device which means having to   
   > rewire the device (which I'd rather avoid), priced around 30Euros or one   
   > that sits in line (between the device and the supply).  The latter   
   > appears to be in excess of 100Euros, which is considerably more than I   
   > want to pay.   
   >   
   > Any suggestions on where to look ?  I'm not interested in a wireless   
   > solution, as it is likely to be used in places where signals are not   
   > reliable.   
   >   
   > Thanks   
   >   
   > Adrian   
      
   Pi Pico, transistor buffer and a big fat mains relay, plus code.   
   You can talk down the same USB you use to power it.   
      
   Less work and more cost - use a Pi with more USB onboard   
      
      
      
   --   
   "Socialist governments traditionally do make a financial mess. They   
   always run out of other people's money. It's quite a characteristic of them"   
      
   Margaret Thatcher   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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