I am building a circuit to power a MKR1010 Wifi board to transmit temperature data. This board will be held inside a spinning hub that ideally, wouldn't be regularly accessed, except for by using a charging cable. What I want to know and try to do is to have a LiPo battery to power the board and an intermediate board that will have either a micro usb port or alternatively a LiPo battery port that would allow me to attach a charging cable when the battery was low. The main point is that the battery should be unaccessible directly, unless I want to take apart the hub which would be a nightmare to have to do regularly.
So my question is really, does anyone know of a board that would allow the connection of a charger, whilst being connected to the main circuit and battery at the same time? Or alternatively if there are any posts related to this that talk about the building of one?
The MKR board doesn't need to be on whilst charging by the way.
Any help would be super useful. Thanks.