Remote power line to control home equipement

[milanino]

I would like to do in my finally project a remote using the power line communication for exemple to turn on a lamp in my bed room at any place of the home
I neeed help for the schemtic of the receiver and the transmetter if it's possible

 

[sribangaram]

Dear milanino I think you require RF r emote controller yes I am right

 

[jayanth.devarayanadurga]

You were doing the project using the TDA chip. What happened to it? What is wrong with that circuit?

 

[milanino]

i have a problem with programming the microcontroller in the receiver and the transmetter
if you can help me ??

 

[jayanth.devarayanadurga]

Post the code without looking at the code I can't help.

 

[milanino]

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 = kp;
Lcd_Chr(2, i+1, '*');// Replace key ASCII value by "*" 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);

delay_ms(2000);

cnt = 0;
if(user1[0] == 0xFF && user1[1] == 0xFF && user1[2] == 0xFF && user1[3] == 0xFF )
{
EEPROM_Write(0x00,'2'); // Write some data at address 00
Delay_ms(20);
EEPROM_Write(0x01,'3'); // Write some data at address 02
Delay_ms(20);
EEPROM_Write(0x02,'4'); // Write some data at address 04
Delay_ms(20);
EEPROM_Write(0x03,'5'); // Write some data at address 08
}
code_read();
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF); // Cursor off
Lcd_Out(1, 1, "WELCOME");
delay_ms(2000);
//Lcd_Cmd(_LCD_CLEAR); // Clear display


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();

}
}
while(1);

this code how to unlock the keypad

 

[jayanth.devarayanadurga]

if(user1[0] == 0xFF && user1[1] == 0xFF && user1[2] == 0xFF && user1[3] == 0xFF )
if(code1[0] == '1' && code1[1] == '2' && code1[2] == '3' && code1[3] == '4' && code1[4] == '5' )

The first statement checks if the array elements are )xFF. Have you initialized the elements with 0xFF. If not, that if statement will never execute.
In the second statement there are 5 elements in the array but in the eeprom code I see only 4 values written and read.

 

[milanino]

the code 12345 is entred when you would like to change the code loaded in the eeprom .
the code in the eeprom is composed of 4 number for exemple (4578)