Hi nick ,i new here ,and in arduino post too....if i want use pwm arduino one 1 mhz...is like 8.25 percent of dutry cicle no?? Mmm i need better definition... Is too much for dc power motor...so i need another arduino boqrd if i need for example 5 percent... Of sutty step by step...until 100 of duty cicle ..thank sorry for mi english ...is no so god