C program to rotate 2 motors in clock wise and anti-clock wise direction using PIC 16f877a Micro controller.

C program to rotate 2 motors in clock wise and anti-clock wise direction using PIC 16f877a Micro controller.

 Note: The Microcontroller cannot drive the motor if they are connected directly to the ports. in practical scenario, we need to use L293d/ULN2003A motor drive.

 
C program:

 #include <htc.h>

__CONFIG(0x3F3A);

#define LP RC0

#define LN RC1

#define RP RC2

#define RN RC3

void go_front();

void go_back();

void turn_left();

void turn_right();

void stop_motors();

void main()

{       

TRISC=0;

while(1)

{

go_front();

delay();      

go_back();

delay();

turn_left();

delay();      

turn_right();

delay();      

stop_motors();

delay();      

}

}

  

delay()

{

int i,j;

for(i=0;i<1000;i++)

for(j=0;j<500;j++);

}       

void go_front()

{

RC0=1;

RC1=0;

RC2=1;

RC3=0;

}

void go_back()

{

RC0=0;

RC1=1;

RC2=0;

RC3=1;

}       

void turn_left()

{

RC0=0;

RC1=0;

RC2=0;

RC3=1;

}       

void turn_right()

{

RC0=0;

RC1=0;

RC2=1;

RC3=0;

}       

void stop_motors()

{

RC0=0;

RC1=0;

RC2=0;

RC3=0;

  

}       

Proteus Simulated design: 

< click on the image for enlarged view >

Video Screen Capture