Please help me to make a wireless sensor monitoring system using soft serial

Projects General Guidance
1

friends,please check the below program .i am going to make a wireless monitoring system using softwareserial library and i am using a serial LCD disply.i made this code by referring various sites with my limited arduino coding skill.Thanks in advance

#include <SoftwareSerial.h>
#include<math.h>
//GAS SENSOR DETAILS
int GasSensorPin=2;
float Rl=20.0;
float approx=2373.315;
float Rs,Vout,count,ratio,GasConc;
int ppm;

//LIGHT SENSOR DETAILS
int LightSensorPin=3;
int LightADCreading;
double LuxCalc;
double Vldr,b,g,Rldr,LDRconst;
int lux;

//HUMIDITY SENSOR DETAILS
int HumiditySensorPin=4;
int HumidityADCReading;
int RelativeHumidity;

//TEMPERATURE SENSOR DETAILS
int TempSensorPin=5;
int TempADCReading;
float TemperatureCelsius;

//DEW POINT VALUES INITIALIZATION
int DewPoint;
double k,z;

//PIR SENSOR DETAILS
int HumanDetectPin=1;
int PIRADCReading;
double PIROUT;

int LED = 13; //LED on Arduino board
byte rx_data = 0; //variable to store receive data
SoftwareSerial mySerial(2, 3); // RX = pin D2, TX = pin D3

//MICROCONTROLLER INITIALIZATION
void setup()
{
pinMode(LED, OUTPUT);
mySerial.begin(9600);
}

//INTRODUCTION AND GAS SENSOR PRE HEATING
void loop()
{
mySerial.write(12);
delay(10);
mySerial.print("MuMo");
mySerial.write(148);
mySerial.print("Main Project");
delay(3000);
mySerial.write(12);
delay(10);
mySerial.print("LMCST");
mySerial.write(148);
mySerial.print("M.R.R.S");
delay(3000);
mySerial.write(12);
delay(10);
mySerial.print("Gas Sensor");
mySerial.write(148);
mySerial.print("Preheating......");
delay(3000);

//MAIN PROGRAM
Program:
TempADCReading=analogRead(TempSensorPin);
TemperatureCelsius=(500.0*TempADCReading)/1000.0;

PIRADCReading=analogRead(HumanDetectPin);
PIROUT=(PIRADCReading);

HumidityADCReading=analogRead(HumiditySensorPin);
RelativeHumidity=(HumidityADCReading/6.7);

LightADCreading=analogRead(LightSensorPin);
Vldr=(LightADCreading4.88)/1000.0;
Rldr=(((5.04.7)/Vldr)-4.7)*1000.0;
b=log(1000000.0)-log(Rldr);

if(Rldr<=100.0)
{
LDRconst=1.0;
}
else if(Rldr>100.0&&Rldr<=400.0)
{
LDRconst=1.06;
}
else if(Rldr>400.0&&Rldr<9000.0)
{
LDRconst=1.1;
}
else if(Rldr>=9000)
{
LDRconst=1.6;
}

g=b/LDRconst;
LuxCalc=exp(g);
if(Rldr>=1000000.0)
{
lux=0;
}
else
{
lux=LuxCalc;
}

z=(RelativeHumidity/100.0);
k=pow(z,0.125);
DewPoint=(k*(112.0+(0.9TemperatureCelsius))+(0.1TemperatureCelsius)-112.0);

count=analogRead(GasSensorPin);
Vout=(count4.88)/1000.0;
Rs=((5.0Rl)-(RlVout))/Vout;
ratio=Rs/approx;
GasConc=146.15(2.868-ratio)+10;
ppm=GasConc;

if(RelativeHumidity<=0.0||TemperatureCelsius<=0.0||lux<0||PIROUT<=0.0) //SYSTEM FAILURE CHECK
{
mySerial.write(12);
delay(10);
mySerial.print("System Error");
mySerial.write(148);
if(RelativeHumidity<=0) //HUMIDITY SENSOR FAILURE CHECK
{
mySerial.print("RH Sensor Fault");
}
else if(TemperatureCelsius<=0) //TEMPERATURE SENSOR FAILURE CHECK
{
mySerial.print("T Sensor Fault");
}
else if(lux<1) //LIGHT SENSOR FAILURE CHECK
{
mySerial.print("Lux Fault");
}
else if(PIROUT<=0.0) //PIR SENSOR FAILURE CHECK
{
mySerial.print("PIR Sensor Fault");
}
}

else
{

//TEMPERATURE DISPLAY
mySerial.write(12);
delay(10);
mySerial.print("Temp=");
mySerial.print(TemperatureCelsius);
mySerial.print("C");

//HUMAN DETECTION CHECK
if((PIROUT>=4))
{
mySerial.write(148);
mySerial.print("Human Not Found");
}
else
{
mySerial.print("Human Found");
delay(3000);
}

//RELATIVE HUMIDITY CHECK
mySerial.write(148);
mySerial.print("RH=");
mySerial.print(RelativeHumidity);
mySerial.print("%");
delay(3000);

//AMBIENT LIGHT CHECK
mySerial.write(12);
delay(10);
mySerial.print("Light=");
mySerial.print(lux);
mySerial.print(" Lux");

//DEW POINT CHECK
mySerial.write(148);
mySerial.print("Dew Pt=");
mySerial.print(DewPoint);
mySerial.print(" C");
delay(3000);

//GAS PRESENCE CHECK
mySerial.write(12);
delay(10);
if(ratio>=2.868)
{
mySerial.print("Gas=");
mySerial.print("0");
mySerial.print(" ppm");
}
else
{
mySerial.print("Gas=");
mySerial.print(ppm);
mySerial.print(" ppm");
}
}
delay(3000);
if(mySerial.available()) // check if UART receive data
{
rx_data = mySerial.read(); //store data received
if(rx_data == 'a') //if the character received is 'a'
digitalWrite(LED, HIGH);
else if ( rx_data == 'A') //if the character received is 'A'
digitalWrite(LED, LOW);
}
goto Program;
} // END PROGRAM

MuMo_SySTEM_Code_softserial.ino (4.31 KB)

2 
SoftwareSerial mySerial(2, 3); // RX = pin D2, TX = pin D3

Do you really have a device with this name attached to those pins? If not, why such a stupid name for the instance?

i made this code by referring various sites with my limited arduino coding skill.

And it does something. You didn't bother saying what it does. You didn't bother saying what it doesn't do that you want it to do. You didn't bother saying what it does that you don't want. You didn't bother saying what the problem is.

Thanks in advance

For what?