wifi humidity v3

#include <SoftwareSerial.h>

#include <Wire.h>
#include <SparkFunHTU21D.h>

#include<stdlib.h>
#include "DHT.h"


#define SSID "XinCheJian"//your network name
#define PASS "imakestuff"//your network password
#define IP "184.106.153.149" // thingspeak.com
//#define DHTPIN 7     // what pin the DHT sensor is connected to
//#define DHTPIN1 8
//#define DHTTYPE DHT11   // Change to DHT22 if that's what you have
//#define DHTTYPE1 DHT11 
#define Baud_Rate 115200 //Another common value is 9600
#define GREEN_LED 3 //optional LED's for debugging
#define RED_LED 4 //optional LED's for debugging
#define DELAY_TIME 60000 //time in ms between posting data to ThingSpeak

//Can use a post also
String GET = "GET /update?key=3A69VVRXPYI6YCSP&field1=";
String FIELD2 = "&field2=";
String FIELD3 = "&field3=";
String FIELD4 = "&field4=";

//if you want to add more fields this is how
//String FIELD3 = "&field3=";

bool updated;

//DHT dht(DHTPIN, DHTTYPE);
//DHT dht1(DHTPIN1, DHTTYPE);
HTU21D myHumidity;
SoftwareSerial mySerial(10, 11); // RX, TX

//this runs once
void setup()
{
  mySerial.begin(Baud_Rate);
  mySerial.println("AT");
  
  delay(5000);
  
  if(mySerial.find("OK")){
    //connect to your wifi netowork
    bool connected = connectWiFi();
    if(!connected){
      //failure, need to check your values and try again
      Error();
    }
  }else{
    Error();
  }
  
  //initalize DHT sensor
//  dht.begin();
//   dht1.begin();
myHumidity.begin();
}

//this runs over and over
void loop(){
 // float h = dht.readHumidity();
  // Read temperature as Fahrenheit (isFahrenheit = true)
  float h = myHumidity.readHumidity();
  //float t = dht.readTemperature();
  float t = myHumidity.readTemperature();
//float h1 = dht1.readHumidity();
  // Read temperature as Fahrenheit (isFahrenheit = true)
 // float t1 = dht1.readTemperature();

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t)) {
    LightRed();
    return;
  }
  
  //update ThingSpeak channel with new values
  updated = updateTemp(String(t), String(h));
//  updated = updateTemp(String(t1), String(h1));
  
  //if update succeeded light up green LED, else light up red LED
  if(updated){
    LightGreen();
  }else{
    LightRed();
  }
  
  //wait for delay time before attempting to post again
  delay(DELAY_TIME);
}

bool updateTemp(String tempC, String humid){
  //initialize your AT command string
  String cmd = "AT+CIPSTART=\"TCP\",\"";
  
  //add IP address and port
  cmd += IP;
  cmd += "\",80";
  
  //connect
  mySerial.println(cmd);
  delay(2000);
  if(mySerial.find("Error")){
    return false;
  }
  
  //build GET command, ThingSpeak takes Post or Get commands for updates, I use a Get
  cmd = GET;
  cmd += tempC;
  cmd += FIELD2;
  cmd += humid;
  
  //continue to add data here if you have more fields such as a light sensor
  //cmd += FIELD3;
  //cmd += <field 3 value>
  
  cmd += "\r\n";
  
  //Use AT commands to send data
  mySerial.print("AT+CIPSEND=");
  mySerial.println(cmd.length());
  if(mySerial.find(">")){
    //send through command to update values
    mySerial.print(cmd);
  }else{
    mySerial.println("AT+CIPCLOSE");
  }
  
  if(mySerial.find("OK")){
    //success! Your most recent values should be online.
    return true;
  }else{
    return false;
  }
}
 
boolean connectWiFi(){
  //set ESP8266 mode with AT commands
  mySerial.println("AT+CWMODE=1");
  delay(2000);

  //build connection command
  String cmd="AT+CWJAP=\"";
  cmd+=SSID;
  cmd+="\",\"";
  cmd+=PASS;
  cmd+="\"";
  
  //connect to WiFi network and wait 5 seconds
  mySerial.println(cmd);
  delay(5000);
  
  //if connected return true, else false
  if(mySerial.find("OK")){
    return true;
  }else{
    return false;
  }
}

void LightGreen(){
  digitalWrite(RED_LED, LOW);
  digitalWrite(GREEN_LED, HIGH);  
}

void LightRed(){
  digitalWrite(GREEN_LED, LOW);
  digitalWrite(RED_LED, HIGH);
}

//if an error has occurred alternate green and red leds
void Error(){      
  while(true){      
    LightRed();      
    delay(2000);      
    LightGreen();
    delay(2000);
  }
}