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#include

#define LCDDATA P2#define ADCDATA P1#define MINIMUM 5

sbit BUSY = P2^7;sbit RS = P2^0;sbit RW = P2^1;sbit EN = P2^2;

sbit OE = P1^3; //RD pinsbit SC = P1^4; // WR is active LOW pinsbit EOC = P1^5; //INTR is active LOW pin

sbit RELAY1 = P1^0;sbit RELAY2 = P1^1;sbit RELAY3 = P1^2;

unsigned char Buff[3] = 0;

void ISR_T0() interrupt 1{

TH0 = 0x4B;TL0 = 0xFF;

TF0 = 0;}

void Delay(unsigned int time){  unsigned int i = 0;

for(i=0;i

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BUSY = 1;RS = 0; // RS =0 FOR COMMANDRW = 1; // RW = 1 FOR READINGwhile(BUSY){

EN = 0; // ENABL EIS LOWEN = 1; // ENABLE IS HIGH

}}

/*Function to Send Command to LCD*/void LCDCMD(unsigned char CMD){

BusyCheck();LCDDATA = CMD;RS = 0; // RS =0 FOR COMMANDRW = 0; // RW = 0 FOR WRITINGEN = 1; // ENABLE IS HIGHEN = 0; // ENABL EIS LOW

}

/*Function to Send Data to LCD*/void LCDData(unsigned char Data){

BusyCheck();LCDDATA = Data;RS = 1; // RS =1 FOR DATARW = 0; // RW = 0 FOR WRITINGEN = 1; // ENABLE IS HIGHEN = 0; // ENABL EIS LOW

}

void LCDString(unsigned char *str){

while(*str){

LCDData(*str);str++;}

}

void Init_T0(){

TMOD = 0x01; // SET THE TIMER0 IN MODE 1 MODETH0 = 0x4B; // LOAD THE TH0 VALUETL0 = 0xFF; // LOAD THE TL0 VALUEET0 = 1; // ENABLE THE TIMER0 INTERRUPT

EA = 1; // ENABLE ALL INTERRUPTTR0 = 1; // START THE TIMER

}

/*Function to Initalize LCD*/void Init_LCD(){

/*Command to Select 2 line , 5x7 matrix mode of LCD */LCDCMD(0x38);

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/*Command to shift the cursor to next position when Data is send in LCD*/

LCDCMD(0x06);

/*Command to ON Display, OFF the Cursor in LCD */LCDCMD(0x0C);

/*Return cursor home */LCDCMD(0x02);

}

void Display(unsigned char Data){

switch(Data){

case 170:LCDString("1KM");

 break;case 204:

LCDString("2KM"); break;

case 219:LCDString("3KM");

 break;case 227:LCDString("4KM");

 break;case 255:

LCDString("NF "); break;

default:break;

}}

void main(){  P0 = 0x0F;

Buff[0] = 0xFF;Init_T0();Init_LCD();

while(1){

P0 = 0x01;LCDCMD(0x80);LCDString("R: ");Display(Read_ADC());

LCDCMD(0x87);LCDString("B: ");Display(Read_ADC());

P0 = 0x02;LCDCMD(0xC0);LCDString("Y: ");Display(Read_ADC());

P0 = 0x04;

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LCDCMD(0xC7);LCDString("N: ");Display(Read_ADC());

}}