help for project

Hello,
Here is I am in class of Terminal S and we have a project to be realized for the end of the year.

The part of my project concerns the supply and I shall like having advices,

The first one would be to know how is that when the battery will be reload completely (because loaded(charged) by solar panel) it stop to load to avoid risks everything of overload.

Secondly I feed a resistance which will allow to warm a hive for winter but the problem it is that my professor I say that I could not make cross(spend) that a number of ampere to limit and by informing me I would have to cross(spend) by one card of power but me does not include connection has to make (because it is necessary that I make them by software, knowing that I use an arduino uno card r3)

Thank you for your help.
Good day

Also posted at: aide projet - Français - Arduino Forum

Given that Google Translate struggled here, I think it best that responses should go to the post in the francophone section of the forum.

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