Hey guys, I'm setting up a security cam to sit in a window at my house. Ideally since this is a window above my front door with no electrical outlets nearby, I was hoping to use solar power to run everything. I've hit a snag though on making sure that I can appropriately charge and run everything.
My first hurdle is that I know that I'll need 1A @5v and .5A @ 12v for my system. The half amp at 12v coming off a 12v battery is pretty straight forward on considering charge times available, but I don't know that right formula for figuring out the current draw of the 5v power. I'm using a switch-mode DC-to-DC converter to drop the voltage from 12v DC to 5v DC. What's the formula I should use?