Just use a simple 10A relay with 5V coil As a latch, you press a button to power up, ie power the coil, then the same line gets dropped by the Pi to power off..
https://www.digikey.co.za/en/products/detail/omron-electronics-inc-emc-div/G5Q-1A4-DC5/1815721 On Wed, 16 Feb 2022 at 00:00, Thaddeus Waldner <thadw...@gmail.com> wrote: > > > Youu need a human to somehow > > kick-start the process. But it should be automated after that. Of > course > > the computer *can* turn itself off. > > > > I've managed to put the "on" button on a phone or indoor PC. > > > … > > This is the part that won’t work. The machine is small enough to pick up > and carry off. It will be used in a construction environment without > dependable wifi. It will have multiple users. I think it should have a > power button or switch. > > Thanks for the idea anyway… I’ve seen those smart plugs but it didn’t > occur to me to have a computer operate them. > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users