Код: unsigned short kp;
char code1[15] ,user1[4];
int i = 0, j, cnt;
int w1;
//keypad module connections
char keypadPort at PORTD;
//end keypad module connections
//lcd module connections
sbit LCD_RS at RB4_bit;
sbit LCD_EN at RB5_bit;
sbit LCD_D4 at RB0_bit;
sbit LCD_D5 at RB1_bit;
sbit LCD_D6 at RB2_bit;
sbit LCD_D7 at RB3_bit;
sbit LCD_RS_Direction at TRISB4_bit;
sbit LCD_EN_Direction at TRISB5_bit;
sbit LCD_D4_Direction at TRISB0_bit;
sbit LCD_D5_Direction at TRISB1_bit;
sbit LCD_D6_Direction at TRISB2_bit;
sbit LCD_D7_Direction at TRISB3_bit;
//
void code_enter(){
kp = 0; //Reset key code variable
//wait for key to be pressed and released
do
//kp = Keypad_Key_Press(); // store key code in kp variable
kp = Keypad_Key_Click(); // store key code in kp variable
while (!kp);
//prepare value for output, transform key to it's ASCII value
switch (kp){
case 1: kp = 49; break; // 1
case 2: kp = 50; break; // 2
case 3: kp = 51; break; // 3
//case 4: kp = 65; break; // A for 4x4 pad
case 5: kp = 52; break; // 4
case 6: kp = 53; break; // 5
case 7: kp = 54; break; // 6
//case 8: kp = 66; break; // B for 4x4 pad
case 9: kp = 55; break; // 7
case 10: kp = 56; break; // 8
case 11: kp = 57; break; // 9
//case 12: kp = 67; break; // C for 4x4 pad
case 13: kp = 42; break; // *
case 14: kp = 48; break; // 0
case 15: kp = 35; break; // #
//case 16: kp = 67; break; // D for 4x4 pad
}
code1[i] = kp;
Lcd_Chr(2, i+1, code1[i]); //Print key ASCII value on Lcd
i++;
}
//20ms delay function no need of it
void code_read(){ //read data from eeprom
Delay_ms(20);
user1[0] = EEPROM_Read(0x00); // Read data from address 0
Delay_ms(20);
user1[1] = EEPROM_Read(0x01); // Read data from address 1
Delay_ms(20);
user1[2] = EEPROM_Read(0x02); // Read data from address 2
Delay_ms(20);
user1[3] = EEPROM_Read(0x03); // Read data from address 3
Delay_ms(20);
}
void code_write(){ //write data to eeprom
Delay_ms(20);
EEPROM_Write(0x00,code1[0]); // Write data to address 0
Delay_ms(20);
EEPROM_Write(0x01,code1[1]); // Write data to address 1
Delay_ms(20);
EEPROM_Write(0x02,code1[2]); // Write data to address 2
Delay_ms(20);
EEPROM_Write(0x03,code1[3]); // Write data to address 3
}
void change_code(){
Lcd_Cmd(_LCD_CLEAR); // clear display
Lcd_Out(1,1, "Enter New Code:");
i = 0;
code_enter();
code_enter();
code_enter();
code_enter();
code_write();
delay_ms(20);
code_read();
delay_ms(20);
Lcd_Cmd(_LCD_CLEAR); // clear display
Lcd_Out(1,1, "New Code Set");
Delay_ms(5000);
}
void main(){
ADCON1 != 0x07;
Keypad_Init(); // Initialize Keypad
ANSEL = 0; // Configure AN pins as digital I/O
ANSELH = 0;
c1on_bit=0; // disable comparator
c2on_bit=0;
TRISC = 0x00;
PORTC = 0x00;
Lcd_Init(); // Initialize LCD
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF); // Cursor off
code_read();
Lcd_Cmd(_LCD_CLEAR); //clear display
Lcd_Cmd(_LCD_CURSOR_OFF); // cursor off
//Lcd_Out(1, 1, msg1);
//Delay_ms(500);
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Out(1, 5, "Ozyegin"); // Write message text on LCD
Lcd_Out(2, 4, "University");
delay_ms(2000);
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1, 1, "Digital Lock By:");
Lcd_Out(2, 1, "Waqas Hussain");
delay_ms(2000);
cnt = 0;
L1: do{
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(2, 3, "Press *");
i = 0;
code_enter();
if(code1[0] == 42){ // *
Lcd_Cmd(_LCD_CLEAR); // clear display
Lcd_Out(1, 1, "Enter Code");
//delay_ms(500);
i = 0;
code_enter();
code_enter();
code_enter();
code_enter();
code_enter();
if(code1[0] == '1' && code1[1] == '2' && code1[2] == '3' && code1[3] == '4' && code1[4] == '5' ){ // master code
code_enter();
if(code1[5] == 35){ // #
change_code();
}
}
else if(cnt<3 && code1[0] == user1[0] && code1[1] == user1[1] && code1[2] == user1[2] && code1[3] == user1[3] && code1[4] == 35){ // save password verification
Lcd_Cmd(_LCD_CLEAR); //Lcd clear
Lcd_out(1,4,"Door Open"); //Door Open
EEPROM_Read(0x21);
w1 = 1;
Delay_ms(20);
EEPROM_Write(0X21, w1);
Delay_ms(20);
EEPROM_Read(0x21);
//move stepper motor to ON position
PORTC=0x03;
Delay_ms(500);
PORTC=0x06;
Delay_ms(500);
PORTC=0x0C;
Delay_ms(500);
PORTC=0x09;
Delay_ms(500);
Delay_ms(5000);
//goto L1;
LCD_Cmd(_LCD_CLEAR);
Lcd_out(1,4,"Door Close");
EEPROM_Read(0x21);
w1 = 0;
Delay_ms(20);
EEPROM_Write(0x21, w1);
Delay_ms(20);
EEPROM_Read(0x21);
//move stepper motor to OFF position
PORTC=0x0C;
Delay_ms(500);
PORTC=0x06;
Delay_ms(500);
PORTC=0x03;
Delay_ms(500);
PORTC=0x09;
Delay_ms(500);
Delay_ms(2000);
//goto L1;
}
else{
cnt++;
Lcd_Cmd(_LCD_CLEAR); //clear display
Lcd_Out(1, 1, "Wrong Password");
Delay_ms(2000);
//goto L1;
}
if(cnt>=3)
goto L1;
}
}while(1);
}
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