I’ve got a project where a Pro-Micro (Leonardo) when powers up enters stand-by mode, and only leaves it when a capacitive button is pressed. To turn off all modules, when in stand-by, (RGB LED, TOF sensor, voltage sensor and power led driver) I used (by exploring the forums) 2 P-Channel Mosfets (one for 5V and one for the 8.4V battery).
Everything works nice, the only thing that makes me curious is that when entering stand_by_power_down mode, the RGB led still has a faint glow. When it leaves stand_by_mode it gets back to normal states. It seems that it never gets fully disconnected.
Could there be any … energy leaks, or something not grounded correctly, that makes it, even with the mosfets off, still some energy comes to this RGB led and lights if faintly?
I’m attaching my full schematics. If someone could give me a hint, or advice, it would be great.
Thanks a lot!