Hello all. I have been working on a side project, a Persistence of vision display. I have had and still have a bunch of problems I must deal with. I feel as though it has something to do with the power needed by the components and the battery I am using. Can someone help with this matter? For example, the components are (other than the battery): 8LEDs with a shift register atmeg328 a hall effect sensor and another LED is there a way to know what type of battery I need? Also a bigger question once I get the right power source, would I need to "partition" the power source in order to satisfy each component? maybe with a voltage divider? Or am I wrong? Any help would be appreciated, Thank you.