alternate code for temperature humidity sensor using thingspeak

#include<stdlib.h>
	#include "DHT.h"
	#define SSID "<your_network_name>"//your network name
	#define PASS "<your_network_password>"//your network password
	#define IP "184.106.153.149" // thingspeak.com
	#define DHTPIN 7 // what pin the DHT sensor is connected to
	#define DHTTYPE DHT11 // Change to DHT22 if that's what you have
	#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=<your_thingspeak_channel_key>&field1=";
	String FIELD2 = "&field2=";
	//if you want to add more fields this is how
	//String FIELD3 = "&field3=";
	bool updated;
	DHT dht(DHTPIN, DHTTYPE);
	//this runs once
	void setup()
	{
	Serial.begin(Baud_Rate);
	Serial.println("AT");
	delay(5000);
	if(Serial.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();
	}
	//this runs over and over
	void loop(){
	float h = dht.readHumidity();
	// Read temperature as Fahrenheit (isFahrenheit = true)
	float f = dht.readTemperature(true);
	// Check if any reads failed and exit early (to try again).
	if (isnan(h) || isnan(f)) {
	LightRed();
	return;
	}
	//update ThingSpeak channel with new values
	updated = updateTemp(String(f), String(h));
	//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 tenmpF, String humid){
	//initialize your AT command string
	String cmd = "AT+CIPSTART=\"TCP\",\"";
	//add IP address and port
	cmd += IP;
	cmd += "\",80";
	//connect
	Serial.println(cmd);
	delay(2000);
	if(Serial.find("Error")){
	return false;
	}
	//build GET command, ThingSpeak takes Post or Get commands for updates, I use a Get
	cmd = GET;
	cmd += tenmpF;
	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
	Serial.print("AT+CIPSEND=");
	Serial.println(cmd.length());
	if(Serial.find(">")){
	//send through command to update values
	Serial.print(cmd);
	}else{
	Serial.println("AT+CIPCLOSE");
	}
	if(Serial.find("OK")){
	//success! Your most recent values should be online.
	return true;
	}else{
	return false;
	}
	}
	boolean connectWiFi(){
	//set ESP8266 mode with AT commands
	Serial.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
	Serial.println(cmd);
	delay(5000);
	//if connected return true, else false
	if(Serial.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);
	}