Reply To: My PSP (PiStation Portable)

[ellindsey]

Working on the soft power switch. I’m working on a latch circuit which uses the GPIO14 output of the Pi to indirectly drive the Enable line on the Powerboost circuit. Tapping the red button turns it on, holding the red button for 5 seconds forces it off. The first attempt didn’t work as I didn’t realize that when GPIO14 goes low on shutdown it’s not a hard low but a soft pull-down and it’s not strong enough to turn the latch off. Going to make some changes to the schematic to get that to work.