Is there a reference design/app note for "pass through" power delivery chargers/battery packs with these MCUs? IOW I'd like my design to do the following;
-If connected to mains power/a small solar panel, charge the batteries while powering the load.
-If disconnected from all other sources, power the load with battery only.
For my own education I'd prefer X-NUCLEO-DRP1M1 but I'm willing to consider all options in that price range.
Obviously I cannot expect a small solar panel to supply enough power for the whole load, never mind for both charging and the load. So at best it will provide a little extra runtime. In contrast mains power should be sufficient for both.
Battery is expected to be 4x18650 but I'm willing to consider other options.
Many thanks in advance
Joe.
