An RFID Module Basically Consists of Two Parts
Transcript of An RFID Module Basically Consists of Two Parts
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sbit en=P1^2; //Enable pinunsigned char card_id[12];
void delay(unsigned int count) //Function to provide delay{
int i,j;for(i=0;i<count;i++)for(j=0;j<1275;j++);
}
void lcd_command(unsigned char comm) //Lcd command funtion{
lcd_data_pin=comm;en=1;rs=0;
rw=0;delay(1);en=0;
}
void lcd_data(unsigned char disp) //Lcd data function{
lcd_data_pin=disp;en=1;rs=1;rw=0;delay(1);en=0;
}
lcd_string(unsigned char *disp) //Function to send string{
int x;for(x=0;disp[x]!=0;x++)
{lcd_data(disp[x]);
}}void lcd_ini() //Function to initialize the LCD{
lcd_command(0x38);delay(5);lcd_command(0x0F);
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delay(5);lcd_command(0x80);delay(5);
}
void recieve() //Function to recieve data serialy from RS232{
unsigned char k;for(k=0;k<12;k++){
while(RI==0);card_id[k]=SBUF;RI=0;
}}
void main(){
int l;TMOD=0x20; //Enable Timer 1TH1=0XFD;SCON=0x50;TR1=1; // Triggering Timer 1lcd_ini();lcd_command(0x81); //Place cursor to second position of first linelcd_string("UNIQUE CARD ID:");delay(200);while(1){
recieve();lcd_command(0xC1); //Place cursor to second position of
second linefor(l=0;l<12;l++){
lcd_data(card_id[l]);}
}}
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27,829-Reads
MAX232 The MAX232 IC is used to convert the TTL/CMOS logic
levels to RS232 logic levels during serial communication of
microcontrollers with PC. The controller operates at TTL
logic level (0-5V) whereas the serial communication in PC
works...
96,471-Reads
AT89C51 Microcontroller
AT89C51 is an 8-bit microcontroller and belongs to Atmel's8051 family . ATMEL 89C51 has 4KB of Flashprogrammable and erasable read only memory (...
81,594-Reads
LCD
LCD (Liquid Crystal Display) screen is an electronic displaymodule and find a wide range of applications. A 16x2 LCD
display is very basic module and is very commonly used invarious devices and circuits. These modules are preferredover seven segments...
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