<div dir="auto">If you are doing this professionally then consider an Acroname hub. It is a USB hub with a control interface. You can turn ports on and off as well as monitor voltage and current.<div dir="auto">We use these for automated test farms.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, 29 Sep 2023, 19:21 Charles Manning, <<a href="mailto:cdhmanning@gmail.com">cdhmanning@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto">I use an STM32 BluePill with a USB CDC (serial) stack on it to control GPIOs. Those could then control a relay or FET to interrupt power.<div dir="auto">I would think that for most devices interrupting power is enough.</div><div dir="auto"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, 29 Sep 2023, 15:45 Synco Reynders, <<a href="mailto:synco.reynders@gmail.com" target="_blank" rel="noreferrer">synco.reynders@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div dir="ltr">If your workstation is linux, you could add a script around the following:<div><a href="https://superuser.com/questions/1707773/how-to-turn-usb-connected-device-on-and-off-in-linux" rel="noreferrer noreferrer" target="_blank">https://superuser.com/questions/1707773/how-to-turn-usb-connected-device-on-and-off-in-linux</a></div><div>/s<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, 29 Sept 2023 at 13:41, Andrew Sands <<a href="mailto:andrew@theatrix.org.nz" rel="noreferrer noreferrer" target="_blank">andrew@theatrix.org.nz</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi all list dwellers,<br>
<br>
Given my Goggle fu has failed me, I now have a request for those clever people whom are subscribed to this list.<br>
<br>
Like many of you, I have the odd project or two that connects a microcontroller to a USB port for communication and power. As my work area is mostly in my garage which is separate from my house, a major amount of programming is done my remotely accessing a workstation which has the project connected to it.<br>
<br>
What I'm looking for is either a device, module or even a circuit diagram of something that would enable me to disconect the USB power to this down stream device.<br>
<br>
Thanks for reading,<br>
<br>
Andrew<br>
(022)681 6655<br>
<br>
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