Home automation using android

[mrutyunjay parida]

This is the code but it wasn’t working perfectly.

could anyone help me to correct it

 

#include<at89x52.h> 

#include<intrins.h> 

sbit LAMP1=P2^0;

sbit LAMP2=P2^1; 

sbit LAMP3=P2^2; 

sbit LAMP4=P2^3; 

unsigned char ch; 

void init_Serial()

{ 

TMOD=0x10; 

TH1=0xFA; 

SCON=0x50; 

TR0=1; 

} 

void Rx_Char() 

{ 

while(RI=0); 

ch=SBUF; 

RI=1; 

} 

void Tx_String(unsigned char *str) 

{ 

while(*str!=’’)

{

SBUF=*str;

while(TI==0);

TI=1;

str++;

}

}

 

void main()

{

P2=0XFF;

init_Serial();

Tx_String(“rENTER:r1:LAMP1 ONr3:LAMP2 ONr5:LAMP3 ONr7:LAMP4 ONr”);

Tx_String(“rENTER:r2:LAMP1 OFFr4:LAMP2 OFFr6:LAMP3 OFFr8:LAMP4 OFFr”);

Tx_String(“rENTER:r9:ALL LAMPS ONr”);

Tx_String(“rENTER:r0:ALL LAMPS OFFr”);

 

while(1)

{

Rx_Char();

switch(ch)

{

case ‘1’:Tx_String(“rLAMP1 ONr”);

LAMP1=1;

break;

case ‘2’:Tx_String(“LAMP1 OFFr”);

LAMP1=0;

break;

case ‘3’:Tx_String(“LAMP2 ONr”);

LAMP2=1;

break;

case ‘4’:Tx_String(“LAMP2 OFFr”);

LAMP2=0;

break;

case ‘5’:Tx_String(“LAMP3 ONr”);

LAMP3=1;

break;

case ‘6’:Tx_String(“LAMP3 OFFr”);

LAMP3=0;

break;

case ‘7’:Tx_String(“LAMP4 ONr”);

LAMP4=1;

break;

case ‘8’:Tx_String(“LAMP4 OFFr”);

LAMP4=0;

break;

case ‘9’:Tx_String(“ALL LAMPS ONr”);

LAMP1=1;

LAMP2=1;

LAMP3=1;

LAMP4=1;

break;

case ‘0’:Tx_String(“ALL LAMPS OFFr”);

LAMP1=0;

LAMP2=0;

LAMP3=0;

LAMP4=0;

break;

default :LAMP1=1;

LAMP2=1;

LAMP3=1;

LAMP4=1;

break;

}

}

}

 

 

 

[SHAH DISHANT H.]

Hi,

 

You have not received any command. So it will not work.

 

Try this.

ch=Rx_Char();

switch (ch)

 

This will work for sure

[Author]

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