I am unable to connect my arduino ESP 8266 01 with Thinkspeak

0. at command => AT Fail

0. at command => AT+CWMODE=1 Fail

0. at command => AT+CWJAP="knapsack","namespace" Fail

0. at command => AT+CIPMUX=1 Fail

0. at command => AT+CIPSTART=0,"TCP","api.thingspeak.com",80

#include <SoftwareSerial.h>
#define RX 2
#define TX 3
//#define RX 19
//#define TX 18
String AP = "knapsack";       //AP NAME
String PASS = "namespace"; //AP PASSWORD
String API = "FNFJ7KDHJK4F3IU2";   //Write API KEY
String HOST = "api.thingspeak.com";
String PORT = "80";
String field = "Random";
int countTrueCommand;
int countTimeCommand;
boolean found = false;
int valSensor = 1;
SoftwareSerial esp8266(RX, TX);


void setup()
{
  Serial.begin(9600);
  esp8266.begin(115200);
  sendCommand("AT", 5, "OK");
  sendCommand("AT+CWMODE=1", 5, "OK");
  sendCommand("AT+CWJAP=\"" + AP + "\",\"" + PASS + "\"", 20, "OK");
}

void loop()
{
  valSensor = getSensorData();
  String getData = "GET /update?api_key=" + API + "&" + field + "=" + String(valSensor);
  sendCommand("AT+CIPMUX=1", 5, "OK");
  sendCommand("AT+CIPSTART=0,\"TCP\",\"" + HOST + "\"," + PORT, 15, "OK");
  sendCommand("AT+CIPSEND=0," + String(getData.length() + 4), 4, ">");
  esp8266.println(getData); delay(1500); countTrueCommand++;
  sendCommand("AT+CIPCLOSE=0", 5, "OK");
}

int getSensorData()
{
  return random(1000); // Replace with your own sensor code
}

void sendCommand(String command, int maxTime, char readReplay[])
{
  Serial.print(countTrueCommand);
  Serial.print(". at command => ");
  Serial.print(command);
  Serial.print(" ");
  while (countTimeCommand < (maxTime * 1))
  {
    esp8266.println(command);//at+cipsend
    if (esp8266.find(readReplay)) //ok
    {
      found = true;
      break;
    }

    countTimeCommand++;
  }

  if (found == true)
  {
    Serial.println("OYI");
    countTrueCommand++;
    countTimeCommand = 0;
  }

  if (found == false)
  {
    Serial.println("Fail");
    countTrueCommand = 0;
    countTimeCommand = 0;
  }

  found = false;
}

[Sarfaraz Khan]

connect the Tx pin of esp8266 to the Rx pin of arduino and the Rx pin of esp8266 to Tx pin of arduino

Answer 1

[Vinod]

Have you considered using the library here: https://github.com/mathworks/thingspeak-arduino

My recommendation is to start from the examples that are part of the library. For example here: https://github.com/mathworks/thingspeak-arduino/tree/master/examples/ESP8266

[Imrul Hasan]

I didn't try this.... But I tried many resources on youtube none of the technique help me. in the Serial Monitor when i try to use AT command. It does't give Ok message. ... I am new in IoT... How to use your reference code.... Can you please help me ? :(

[Imrul Hasan]

Answer 2

[John Anand]

I Had the same problem and I tried the github stuff and it still didn't work.

Answer 3

[Sarfaraz Khan]

connect the Tx pin of esp8266 to the Rx pin of arduino and the Rx pin of esp8266 to Tx pin of arduino

Answer 4

[Dharmaseelan Karthigesu]

22:55:26.930 -> 0. at command => AT+CIPMUX=1 Fail

22:55:31.955 -> 0. at command => AT+CIPSTART=0,"TCP","api.thingspeak.com",80 Fail

22:55:47.064 -> 0. at command => AT+CIPSEND=0,60 Fail

22:55:52.566 -> 1. at command => AT+CIPCLOSE=0 Fail

Why there is no data in thingspeak?

#include <SoftwareSerial.h>

#include <dht11.h>

#define RX 2

#define TX 3

#define dht_apin 11 // Analog Pin sensor is connected to

dht11 dhtObject;

String AP = "dharma"; // AP NAME

String PASS = "03049494"; // AP PASSWORD

String API = "K4OY2DV8KSEB5QVP"; // Write API KEY

String HOST = "api.thingspeak.com";

String PORT = "80";

int countTrueCommand;

int countTimeCommand;

boolean found = false;

int valSensor = 1;

SoftwareSerial esp8266(RX, TX);

void setup() {

Serial.begin(9600);

esp8266.begin(115200);

sendCommand("AT",5,"OK");

sendCommand("AT+CWMODE=1",5,"OK");

sendCommand("AT+CWJAP=\""+ AP +"\",\""+ PASS +"\"",20,"OK");

}

void loop() {

String getData = "GET /update?api_key="+ API +"&field1="+getTemperatureValue()+"&field2="+getHumidityValue();

sendCommand("AT+CIPMUX=1",5,"OK");

sendCommand("AT+CIPSTART=0,\"TCP\",\""+ HOST +"\","+ PORT,15,"OK");

sendCommand("AT+CIPSEND=0," +String(getData.length()+4),4,">");

esp8266.println(getData);delay(1500);countTrueCommand++;

sendCommand("AT+CIPCLOSE=0",5,"OK");

}

String getTemperatureValue(){

dhtObject.read(dht_apin);

Serial.print(" Temperature(C)= ");

int temp = dhtObject.temperature;

Serial.println(temp);

delay(50);

return String(temp);

}

String getHumidityValue(){

dhtObject.read(dht_apin);

Serial.print(" Humidity in %= ");

int humidity = dhtObject.humidity;

Serial.println(humidity);

delay(50);

return String(humidity);

}

void sendCommand(String command, int maxTime, char readReplay[]) {

Serial.print(countTrueCommand);

Serial.print(". at command => ");

Serial.print(command);

Serial.print(" ");

while(countTimeCommand < (maxTime*1))

{

esp8266.println(command);//at+cipsend

if(esp8266.find(readReplay))//ok

{

found = true;

break;

}

countTimeCommand++;

}

if(found == true)

{

Serial.println("OYI");

countTrueCommand++;

countTimeCommand = 0;

}

if(found == false)

{

Serial.println("Fail");

countTrueCommand = 0;

countTimeCommand = 0;

}

found = false;

}

Answer 5

[yoyo]

#include <SoftwareSerial.h>

#include <dht11.h>

#define RX 2

#define TX 3

#define dht_apin 11 // Analog Pin sensor is connected to

#define mq 12

#define LDR 13

dht11 dhtObject;

String AP = "Sethu"; // AP NAME

String PASS = "123456789"; // AP PASSWORD

String API = "064CP8EN5CYNDI2U"; // Write API KEY

String HOST = "api.thingspeak.com";

String PORT = "80";

int countTrueCommand;

int countTimeCommand;

boolean found = false;

int valSensor = 1;

SoftwareSerial esp8266(RX,TX);

void setup() {

Serial.begin(9600);

esp8266.begin(115200);

sendCommand("AT",5,"OK");

sendCommand("AT+CWMODE=1",5,"OK");

sendCommand("AT+CWJAP=\""+ AP +"\",\""+ PASS +"\"",20,"OK");

}

void loop() {

String getData = "GET /update?api_key="+ API +"&field1="+getTemperatureValue()+"&field2="+getHumidityValue()+"&field3="+getairValue()+"&field4="+getlightValue();

sendCommand("AT+CIPMUX=1",5,"OK");

sendCommand("AT+CIPSTART=0,\"TCP\",\""+ HOST +"\","+ PORT,15,"OK");

sendCommand("AT+CIPSEND=0," +String(getData.length()+4),4,">");

esp8266.println(getData);delay(1500);countTrueCommand++;

sendCommand("AT+CIPCLOSE=0",5,"OK");

}

String getTemperatureValue(){

dhtObject.read(dht_apin);

Serial.print(" Temperature(C)= ");

int temp = dhtObject.temperature;

Serial.println(temp);

delay(50);

return String(temp);

}

String getHumidityValue(){

dhtObject.read(dht_apin);

Serial.print(" Humidity in %= ");

int humidity = dhtObject.humidity;

Serial.println(humidity);

delay(50);

return String(humidity);

}

String getairValue(){

int airqlty = 0;

Serial.print("AIR QUALITY:");

airqlty = analogRead(mq135_pin);

Serial.print(map(analogRead(mq135_pin), 0, 1024, 99, 0));

Serial.print("%");

delay(50);

return String(map(analogRead(mq135_pin), 0, 1024, 99, 0));

}

String getlightValue(){

Serial.print("LIGHT :");

Serial.print(map(analogRead(LDR), 0, 1024, 0, 99));

Serial.print("%");

delay(50);

return String(map(analogRead(LDR), 0, 1024, 0, 99));

}

void sendCommand(String command, int maxTime, char readReplay[]) {

Serial.print(countTrueCommand);

Serial.print(". at command => ");

Serial.print(command);

Serial.print(" ");

while(countTimeCommand < (maxTime*1))

{

esp8266.println(command);//at+cipsend

if(esp8266.find(readReplay))//ok

{

found = true;

break;

}

countTimeCommand++;

}

if(found == true)

{

Serial.println("OYI");

countTrueCommand++;

countTimeCommand = 0;

}

if(found == false)

{

Serial.println("Fail");

countTrueCommand = 0;

countTimeCommand = 0;

}

found = false;

}