need atmega 16 c code

[inamullah]

Can any one help me by giving code for dc motor speed control

 

[sherazi]

code is always dependent on the hardware used. so how can we give you code ... further more you should first have some reading and searching on the forum about speed control , then you can ask what you didn't understand or even you can ask for help in coding but at-least you should have done something!

explain your needs, your motor etc

 

[inamullah]

i want to make line follower robot,i have control speed of single motor.i want to know what changes needed to control two motors and which snesor i should use IR, LDR or photodiode.
#include<avr/io.h>
#include<util/delay.h>



#define s5 200 // s for speed
#define s4 150
#define s3 100
#define s2 50
#define s1 20
#define s0 0

#define forward 0b00000010
#define reverse 0b00000001
#define right 0b00011010
#define left 0b00010110
#define stop 0b00001111

void move(char speed,char direc)
{

OCR0=speed;

PORTA=direc;
}



void main()
{
///////////I/O Ports setup///////////////

DDRC=0b00000000; //PORTC for PORTC input
PORTC=0x00; //Internal pullup enable

DDRA=0xff; //PA0 & PA1 for right motor control
//PORTA=0x00; //PA2 & PA3 for left motor direction

///////////Setting up Timers/////////////

TCCR0 = 0b01101100; //Fast PWM, Output at OC0


/////////// Variable declarations ///////
char prev=0x00;

/////////// Mian Loop ///////////////////
while(1)
{



if(1)
{
if((PINC & 0xf0)== 0b00000000)
{
move(s5,forward);
}
else if((PINC & 0xf0 )== 0b00010000 )
{
move(s5,left);
}
else if((PINC & 0xf0 )== 0b00100000)
{
move(s3,left);
}
else if((PINC & 0xf0) == 0b00110000)
{
move(s3,left);
}
else if((PINC& 0xf0 )== 0b01000000)
{
move(s3,right);
}
else if((PINC & 0xf0) == 0b01010000)
{
move(s3,right);
}
else if((PINC & 0xf0 )== 0b01100000)
{
move(s3,reverse);
_delay_ms(2000);
}
else if((PINC & 0xf0 )== 0b01110000)
{
move(s3,reverse);
_delay_ms(2000);
}
else if((PINC & 0xf0 )== 0b10000000)
{
move(s5,right);
}
else if((PINC & 0xf0 )== 0b10010000)
{
move(s3,forward);
}
else if((PINC & 0xf0 )== 0b10100000)
{
move(s3,right);
}
else if((PINC & 0xf0)== 0b10110000)
{
move(s3,left);
}
else if((PINC & 0xf0)== 0b11000000)
{
move(s3,right);
}
else if((PINC & 0xf0)== 0b11010000)
{
move(s3,right);
}
else if((PINC & 0xf0)== 0b11100000)
{
move(s3,right);
}
else if((PINC & 0xf0)== 0b11110000)
{
move(s5,reverse);
_delay_ms(3000);
}

}


}
}
thanx for reply.......