I'm looking for a design that would do this :
-System is off.
-Press power button
-System powers on, and stays on after button release.
-At mcu demand, system is powered off.
I see how that can easily be done with a relay that is powering itself...
Of course I'd like a real power off... not putting the mcu in sleep mode.
But how can I do that with transistors ?
Is using transistors an good design regarding minimal
power consumption, or is a small relay better ?
Already googled a lot on this and never found anything...
Thanks for any idea.