Good day chaps, im flambustered with curiosity in search of how to automatically reverse polarity every minute. I have in my possession a 1 horse power 12 volt DC motor, which, if i hook up to a conveyor belt, i want to reverse the direction every minute, but, in order to do that, i would need to manually unhook the power cables from my power supply, and reverse the polarity. Living in the current year we do, it seems there just must be a way to use modern day wizardry to switch the polarity every minute automatically by using some sort of circuit, but since i am no pro, nor even had a class about this stuff, i have not a clue as to how to make such a circuit, so pretty please with the kindness of your beautiful hearts, could you please help me figure this out?