hi, my name is john from kenya. i have tried coming up with a time operated source code for solar tracker using pic 16f877a but in vain. can you kindly assist me in coming up with that source (that code must ensure that the stepper motor that am using rotates with time and when evening comes the motor rotates backwards and faces the east for 10 hours until morning when it starts rotating again). my email address is marangujon[at]yahoo.com.