code is working but data is not receiving at thingspeak

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Sarfaraz Khan
Sarfaraz Khan on 17 May 2022
Edited: Christopher Stapels on 19 May 2022
My code is working properly but i am not recevind the data at thingspeak if i can get any help ?? here is the code
#include <SoftwareSerial.h>
#include <SimpleDHT.h>
#include <Wire.h>
#include "ThingSpeak.h"
#include <LiquidCrystal_I2C.h>
#include <dht11.h>
#define RX 3
#define TX 2
#define dht_apin 11 // Analog Pin sensor is connected to
dht11 dhtObject;
String AP = "Khan"; // AP NAME
String PASS = "Pakistan2"; // AP PASSWORD
String API = "xxxxxxxxx"; // Write API KEY
String HOST = "api.thingspeak.com";
//String HOST = "184.106.153.149";
String PORT = "80";
String field = "field1";
int countTrueCommand;
int countTimeCommand;
boolean found = false;
int valSensor = 1;
int pinDHT11 = 11;
SimpleDHT11 dht11(pinDHT11);
LiquidCrystal_I2C lcd(0x27, 16, 2);
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(2000);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(" ");
lcd.begin();
// Turn on the blacklight and print a message.
lcd.backlight();
lcd.print("Tempature ");
lcd.print((String)getTemperatureValue());
lcd.print("C");
lcd.setCursor(0, 1);
lcd.print("Humidity ");
lcd.print((String)getHumidityValue());
lcd.print("%");
delay(1000);
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;
}
  7 Comments
Christopher Stapels
Christopher Stapels on 18 May 2022
What happened when you tried the commands in that example? Can you show the output?

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Answers (1)

Allam Bharath kumar
Allam Bharath kumar on 18 May 2022
Edited: Christopher Stapels on 19 May 2022
Same problem for me also with python program.
import paho.mqtt.publish as publish
import time
import random
server = "mqtt.thingsepak.com"
port = 1883
channel_id = "xxxxxxxxxxxxxx"
write_api_key = "xxxxxxxxxxx"
topic = "channels/"+channel_id+"/publish/"+write_api_key
mqtt_username = 'xxxxxxxxx'
mqtt_password = 'xxxxxxxxxxxxxx'
mqtt_auth = { 'username': mqtt_username, 'password': mqtt_password }
while True:
h = random.randint(30,100)
t = random.randint(10,50)
data = "field1="+str(t)+"&field2="+str(h)
publish.single(topic, data, qos=0, retain=False, hostname=server,
port=port, client_id=mqtt_username, keepalive=60, will=None, auth=mqtt_auth,
tls=None)
time.sleep(15)
  1 Comment
Vinod
Vinod on 18 May 2022
Your code needs to be updated. Start with the example here. For starters, your server is incorrect: "mqtt.thingsepak.com" would never have worked.

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