Design of breathing light based on LED light group

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#include 

void Delay1(int del)

{

        int i,j;

        for(i=0; i        for(j=0; j<1827; j++)   

        ;

}

void Delay(unsigned int t)

{

while(--t);

}

// Function declaration

//P0=0x00;

unsigned int z,y;

void main (void) //Main function

{

        unsigned int CYCLE=400,PWM_LOW=0; //Define the cycle and assign values

        while (1) //main loop

        {

 

/*--------The whole row of LED lights breathe---------*/

                

                Delay1(150); //Add delay, you can see the process of extinguishing (the same applies to the following program)

                for(PWM_LOW=1;PWM_LOW                        { 

                                P1=0x00;                                        

                                Delay(PWM_LOW);

                                P1=0xff; 

                                Delay(CYCLE-PWM_LOW);

                        }

                P1=0xff;                                                                                

                for(PWM_LOW=CYCLE-1;PWM_LOW>0;PWM_LOW--) //The opposite process of gradually brightening

                        {

                                   P1=0x00; //Turn on the LED 

                                   Delay(PWM_LOW);

                                   P1=0xff; //Turn off LED

                                  Delay(CYCLE-PWM_LOW); //Add other programs that need to work all the time in the main loop, and reduce the delay length from 599 to 1 in 600 cycles

                        }

 

}

}


Reference address:Design of breathing light based on LED light group

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