> Peter L. Peres wrote: > > Dismount a mouse, it's cheaper and have either a dual optical sensor or an encoded wheel, you can even use the whole mouse to count up and down...:))))) > > On Fri, 24 Jul 1998, Aldi Navarro wrote: > >> Presently I'm doing a counter for my transformer winder machine using > >> this 16C84. > >> However, I need to determine the direction of the rotation in order > >> to know the correct no. of turns by considering the addition and > >> subtraction of turns which depends on the direction of the rotation > >> of my motor. > > > Use two reflective photo-sensors in quadrature to detect a piece of > > reflective aluminium mirror glued to a rotating part in the machine. >