Access-Control-system-Using-RFID/main.c at main · Muthukuttan/Access-Control-system-Using-RFID · GitHub

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#include"display_driver.h"
#include<string.h>
#define a 1<<12
#define b 1<<13

UC8 rfid_dat[15];
UC8 rfid_data[5][14] = {"030067849F7A","477326494638","478326494638",
"478326494637","06003B683762"};// list of allowed rfid card
UC8 rfid_flag = 0;
UC8 byte_no = 0;
UC8 uart0_rx(void)
{
	while(((U0LSR)&1)== 0);
		return(U0RBR);

}

void check_rfid(void)
{
	UC8 check_flag = 0,i;
	IODIR0 |=a|b;// p0.2 and p0,3 as output pin
	//IOSET0 = a|b; // for led
	for(i = 0;i<5;i++)
	{
		if(strcmp(rfid_dat,rfid_data[i])== 0)
			{
				check_flag = 1;
				break;
			}
	}
	if(check_flag == 0)
	{
		LCD_INIT();
		LCD_CMD(0x80);
		LCD_STR("ACCESS DENIED");
		delaym(2000);
		LCD_CMD(0x01);
	}
	else
	{
		LCD_CMD(0x01);
		LCD_CMD(0x80);
		LCD_STR("ACCESS APROVED");
		delaym(100);
		//rotate the motor to one directiono
		LCD_CMD(0x01);
		LCD_CMD(0x80);
		LCD_STR("DOOR IS OPENING");

		IOSET0 = a; //for motor
		IOCLR0 = b; //for motor

		delaym(5000);// for 5 second
		LCD_CMD(0x01);
		LCD_CMD(0x80);
		LCD_STR("DOOR IS OPEN");
		IOCLR0 = a|b;
		delaym(2000);

		//rotate the motor to another direction
		LCD_CMD(0x01);
		LCD_CMD(0x80);
		LCD_STR("DOOR IS CLOSING");

		IOSET0 = b; //for motor
		IOCLR0 = a;// for motor
		delaym(5000);
	}
	byte_no = 0;
	LCD_CMD(0X01);
	LCD_CMD(0X80);
	IOSET0 = a|b; // for led
}

void UART0_CONFIG(void){
U0LCR=0X83;
U0DLL=97;
U0DLM=0;
U0LCR=0X03;
}
int main( )
{
	U32 count = 0,c = 0;
	PINSEL0=0X5;
	UART0_CONFIG();
	LCD_INIT();
	LCD_CMD(0x80);
	LCD_STR("V25CE2A1");
	delaym(2000);/// delay
	LCD_CMD(0X01);		  //clear
	LCD_CMD(0x80);///
	LCD_STR("Access Control system Using RFID");//proj name
	delaym(4000);
	LCD_CMD(0x01);
	while(1)
	{
		LCD_STR("WAVE THE CARD");
		while(byte_no<12)
		{
			rfid_dat[byte_no]= uart0_rx();
			 byte_no++;
		}
			rfid_dat[byte_no]= '\0';
			check_rfid();
	}

}