need your help for a start up and shut-down push-button. There is an easier solution with waking up the Pi with GPIO 5 and switch off with the same port by a short python script. But there is a problem: It shouldn´t start with connecting the power supply.
I had an idea with an thyristor. Using a push-button to ignite the thyristor. And afterwards a python script is going to shut down the Pi due to the next status of the button... But, there arise a few questions:
- The Pi still needs some Ampere during switched off. With which Thyristor it´ll change even though to the blocking state again?
I think the current is still to high to get a tiny thyristor for it??
- Does my circuit in attachment makes sense to solve this?
- Maybe there is another idea? without an external micro controller?
Thanks from Germany already