ThingSpeak

I'm a newbie in Thingspeak. I have tried manytime to upload my code using the example from library to thingspeak but nothing be happened. I'm using Esp6266. Would you mind helping me?

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/*
WriteMultipleFields

Description: Writes values to fields 1,2,3,4 and status in a single ThingSpeak update every 20 seconds.

Hardware: ESP8266 based boards

!!! IMPORTANT - Modify the secrets.h file for this project with your network connection and ThingSpeak channel details. !!!

Note:
- Requires ESP8266WiFi library and ESP8622 board add-on. See https://github.com/esp8266/Arduino for details.
- Select the target hardware from the Tools->Board menu
- This example is written for a network using WPA encryption. For WEP or WPA, change the WiFi.begin() call accordingly.

ThingSpeak ( https://www.thingspeak.com ) is an analytic IoT platform service that allows you to aggregate, visualize, and 
analyze live data streams in the cloud. Visit https://www.thingspeak.com to sign up for a free account and create a channel.  

Documentation for the ThingSpeak Communication Library for Arduino is in the README.md folder where the library was installed.
See https://www.mathworks.com/help/thingspeak/index.html for the full ThingSpeak documentation.

For licensing information, see the accompanying license file.

Copyright 2020, The MathWorks, Inc.
*/

#include ESP8266WiFi.h #include "secrets.h" #include "ThingSpeak.h" // always include thingspeak header file after other header files and custom macros #include Arduino.h #include "Adafruit_SHT31.h" Adafruit_SHT31 sht31 = Adafruit_SHT31();

char ssid[] = SECRET_SSID; // your network SSID (name) char pass[] = SECRET_PASS; // your network password int keyIndex = 0; // your network key Index number (needed only for WEP) WiFiClient client;

unsigned long myChannelNumber = SECRET_CH_ID; const char * myWriteAPIKey = SECRET_WRITE_APIKEY;

String myStatus = "";

void setup() { Serial.begin(115200); // Initialize serial while (!Serial) { ; // wait for serial port to connect. Needed for Leonardo native USB port only }

WiFi.mode(WIFI_STA); 
ThingSpeak.begin(client);  // Initialize ThingSpeak

sht31.begin(0x44);

}

void loop() {

// Connect or reconnect to WiFi
if(WiFi.status() != WL_CONNECTED){
  Serial.print("Attempting to connect to SSID: ");
  Serial.println(SECRET_SSID);
  while(WiFi.status() != WL_CONNECTED){
 //   WiFi.begin(ssid, pass);  // Connect to WPA/WPA2 network. Change this line if using open or WEP network
   WiFi.begin(); Serial.print(".");
    delay(5000);     
  } 
  Serial.println("\nConnected.");
}

//+++++++++++++++++++++++++++SHT31 Sensor float t = sht31.readTemperature(); float h= sht31.readHumidity();

if (! isnan(t)) {  // check if 'is not a number'
  Serial.print("Temp *C = ");
  Serial.print(t);
  Serial.print("\t\t");

} 

if (! isnan(h)) {  // check if 'is not a number'
  Serial.print("Hum. % = ");
  Serial.println(h);
}

// set the fields with the values
ThingSpeak.setField(1,t);
ThingSpeak.setField(2,h);

// write to the ThingSpeak channel
int x = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
if(x == 200){
  Serial.println("Channel update successful.");
}
else{
  Serial.println("Problem updating channel. HTTP error code " + String(x));
}

delay(20000); // Wait 20 seconds to update the channel again
}
end