2021-03-20, 01:29 AM
(2021-03-16, 01:19 PM)sebba Wrote: I made the shutdown circuit like this. Also, a script is monitoring the "halt pin" status and shut down RPi when the power switch is OFF (and "halt pin" goes down to 0)
After the power switch turns OFF, the power is still ON for about 1 min, enough time for RPi to safe halt
Of course, the power regulator can be a different one, i used this for an RPi0w
Good idea! I like the way you have used a Capacitor to trigger a transistor to keep the permanent 12V hot until the Pi is down, well until Capacitor is drained