adwsystems:
My bad. I missed the 'Pro' in Pro Mini.What is powering the Feather? Why not split the incoming power?
The Feather is powered by USB and by a 3.7v Lipo battery when not plugged in. It has a built in battery charger so I don't have to worry about that.
I guess I could power the Pro Mini with the battery.
wvmarle:
The main problem is the overall power supply. An SD card can draw quite some power when active, and that's not what those little regulators can handle.
The Pro Mini will only have the SD card reader attached and nothing else that draws power. Shouldn't it be able to handle that?