Gas sensors with pulse sensor,no serial output problem, PLEASE HELP!!!

Dear: Buddhima

I am sorry but you weren't very specific. You need to tell us first of all what sensor you are using, the datasheet you are using, and what code you are using. Then that should be enough for us to help you.

From: Noah

Dear: Buddhima

I am sorry but you weren't very specific. You need to tell us first of all what sensor you are using, the datasheet you are using, and what code you are using. Then that should be enough for us to help you.

From: Noah

#include <DHT11.h>

int pin = 4;

DHT11 dht11(pin);

int coPin = A0; 

int pulsePin = A1;

int methanePin = A2;

int pulseRate = 0;               

int sensorValue = 0;

int tempValue = 0;

int methaneValue = 0;

int coValue = 0;

int blinkPin = 13;                // pin to blink led at each beat

int fadePin = 5;                  // pin to do fancy classy fading blink at each beat

int fadeRate = 0;                 // used to fade LED on with PWM on fadePin

// these variables are volatile because they are used during the interrupt service routine!

volatile int BPM;                   // used to hold the pulse rate

volatile int Signal;                // holds the incoming raw data

volatile int IBI = 600;             // holds the time between beats, must be seeded!

volatile boolean Pulse = false;     // true when pulse wave is high, false when it's low

volatile boolean QS = false;        // becomes true when Arduoino finds a beat.

void setup()

{

   Serial.begin(9600);

  while (!Serial) {

      ; // wait for serial port to connect. Needed for Leonardo only

    }

}

void loop()

{

  interruptSetup();

   sendDataToProcessing('S', Signal);     // send Processing the raw Pulse Sensor data

  if (QS == true){                       // Quantified Self flag is true when arduino finds a heartbeat

        fadeRate = 255;                  // Set 'fadeRate' Variable to 255 to fade LED with pulse

        sendDataToProcessing('B',BPM);   // send heart rate with a 'B' prefix

        sendDataToProcessing('Q',IBI);   // send time between beats with a 'Q' prefix

        QS = false;                      // reset the Quantified Self flag for next time   

     }

  delay(20);  

  get_co();

  get_methane();

  get_temp();

  delay(5000); 

}

int get_co()

{

coValue = analogRead(coPin);

Serial.println(coValue);

}

int get_methane()

{

  methaneValue = analogRead(methanePin);

  Serial.println(methaneValue);

}

void get_temp()

{

int err;

  float temp, humi;

  err=dht11.read(humi, temp);

  delay(DHT11_RETRY_DELAY); //delay for reread

  Serial.println(temp);

  Serial.println(humi);

}

void sendDataToProcessing(char symbol, int data ){

                                           // symbol prefix tells Processing what type of data is coming

    Serial.println(BPM);                // the data to send culminating in a carriage return

  }

//////// here is my code i think problem is with the code please help. thank you.///////