How do I decide which ARM board to go for if I am aiming to use it as a micro-controller to run sensors, actuators, motors, and solar panels? And I wish to power up the board via Li-ion battery pack.
joabchua yes like you have say. I mean you can start with an ST nucleo kit for practice. But if you want to be efficient in your project you'll may have to change of board or to produce your own board to be close as possible of your hardware components.