regarding to the question of moroh, to differ the black line follower and white line follower, the difference is just the programming of the IC, depend on how your program your input of the PIC..if, white line is 0v and black line is 5v, then you set a voltage reference to differ the 2 state..

ya, it working well, anyone who want the detail for the project can send a personal message to me.. this 2 video is the robot from my friend, my 1 is not upload yet...

YouTube - Line Following Robot
YouTube - Line Following Robot

 

sir,
can u help me with my project? i need a circuit diagram and program for my line follower using pic16f84..
tnx...

 

hey, my method is using A/D converter, for 16f84, i think u need an external A/D converter or a comparator..

 

I need a simple electronics project quick. Maybe 2 transistors or 1 and has a schematic with pspice simulation, any help?

 

many thanxxxxxxxxxxxxxxxxxx

 

A black line follower would assume that if its sensors sensed black it was on track.
So if you put it on a black sheet with a white line on it, it would end up anywhere on the sheet and would not follow the white line.

If you use two sensors and follow the edge then it probably doesn't make any difference whether it's on a black sheet with a white line or a white sheet with a black line.

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Sig 9 from Outer Space

 

Hi... May I know what programming u are using?? And is it the same if I am controlling stepper motor with RS232 port?

 

i am using CCSC C programming..u mean u wanna use the UART function by RS232? i never try before.. but i think i can control the stepper motor by varying the PWM of the PIC..