12 bit optical encoder with 16f877a

[naya2013]

I want to measure angle 0-90 degree's 0.1 by 0.1 using stepper motor.i use 1.8 degree stepper motor and 1 to 18 gear wheel arrangement reduce to angle.but there is a problem i want to use encoder and measure correct angle and system should be rotate to correct position(0.1 degree).how can i do this?i use pic 16f877a,plz help me.....???

 

[Venkadesh_M]

Hi sense the initial position and calculate the final position, move the stepper motor in correct direction if you got or get over (very important) the destination stop the stepper motor...