From: tnp@invalid.invalid   
      
   On 04/08/2025 13:50, Mike Scott wrote:   
   > On 04/08/2025 11:10, The Natural Philosopher wrote:   
   >> On 04/08/2025 09:04, Mike Scott wrote:   
   >>> On 02/08/2025 12:44, Gordon Henderson wrote:   
   >>>> Personally, I think that if I already had a working bank of mechanical   
   >>>> relays (with opto isolated inputs such as the multitude sold for   
   >>>> Adruino   
   >>>> and Pi) I'd just suck it up and give it a separate 5v PSU capable   
   >>>   
   >>> Yes, sound advice. Thanks. I was working out late last night this   
   >>> will be outside a normal usb current limit. I do have a suitable bank   
   >>> of relays, and I'm pretty sure there must be a spare 5V wall wart   
   >>> around somewhere.   
   >>>   
   >>> Thanks to all for comments offered. I think I'll have to stick to the   
   >>> old-fashioned way here.   
   >>>   
   >>>   
   >> I've got bare pcbs with a 5V psu and buffered 4 buffered relay coils   
   >> that can interface to  a Pi if you want   
   >>   
   >> Supply the voltage and have transistors and LEDS to drive and show   
   >> relay status   
   >>   
   >> http://vps.templar.co.uk/Odd%20stuff/HC.JPG   
   >>   
   >> Its interfacing to a zero there, but a Pico can run off 5V as well   
   >>   
   >>   
   > Thanks for the offer, but as I already have the 8-way bank, I'll settle   
   > for that.   
   >   
      
   Great.   
      
   --   
   Of what good are dead warriors? … Warriors are those who desire battle   
   more than peace. Those who seek battle despite peace. Those who thump   
   their spears on the ground and talk of honor. Those who leap high the   
   battle dance and dream of glory … The good of dead warriors, Mother, is   
   that they are dead.   
   Sheri S Tepper: The Awakeners.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)