Esp-01 is connected to wifi but blynk shows that the system is offline

Need Help With My Project
1

Hello!
I am using Arduino Uno and ESP-01 wifi module to send the data to blynk but even after changing both module and board, I am facing the same problem that the system is shown offline even though the module is still conned to the wifi.System is showing online and again showing offline continuously.

#define BLYNK_TEMPLATE_ID "TMPL3_lgyRLMN"
#define BLYNK_TEMPLATE_NAME "EDI"
#define BLYNK_AUTH_TOKEN "vb7EhhJqAtqLhRwfjsaSc95MnD_CazqC"

/* Comment this out to disable prints and save space */
#define BLYNK_PRINT Serial  // Comment this out to disable prints and save space
#include <ESP8266_Lib.h>
#include <BlynkSimpleShieldEsp8266.h>

// Your WiFi credentials
char ssid[] = "Name";
char pass[] = "12345678";

#include <SoftwareSerial.h>
SoftwareSerial EspSerial(2, 3);  // RX, TX

#define ESP8266_BAUD 115200
ESP8266 wifi(&EspSerial);


const int mainldrpin = 4;
const int LIGHT1 = 9;
const int LIGHT2 = 10;
const int trigPin = 7;
const int echoPin = 8;
const int brightness = 255;
const int rainSensor = A0;
const int testldr = A1;
const int buzz = 4;
BlynkTimer timer;
String s5 = "faulty Street light";



void setup() {

  pinMode(mainldrpin, INPUT);
  pinMode(LIGHT1, OUTPUT);
  pinMode(LIGHT2, OUTPUT);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(rainSensor, INPUT);
  pinMode(testldr, INPUT);
  pinMode(buzz, OUTPUT);

  // digitalWrite(LIGHT1,LOW);
  // digitalWrite(LIGHT2,LOW);

  timer.setInterval(1000L, sensorData);

  // Debug console
  Serial.begin(9600);

  delay(10);

  // Set ESP8266 baud rate
  EspSerial.begin(ESP8266_BAUD);
  delay(10);

  Serial.print("Connecting to ");
  Serial.println(ssid);

  Blynk.begin(BLYNK_AUTH_TOKEN, wifi, ssid, pass);

  while (Blynk.connect() == false) {
    // Wait until connected
  }
}

void sensorData() {
  int mainldrReading = digitalRead(mainldrpin);
  int rainSensorValue = analogRead(rainSensor);
  int testldrval = analogRead(testldr);


  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);


  long duration = pulseIn(echoPin, HIGH);
  long distance = (duration / 2) / 29.1;

  if (mainldrReading == 0) {
    digitalWrite(LIGHT1, LOW);
    digitalWrite(LIGHT2, LOW);
    Serial.println("Day detected!");
    Blynk.virtualWrite(V2, mainldrReading);
    String s1 = "Day detected!";
    Blynk.virtualWrite(V3, s1);
    Blynk.virtualWrite(V4, testldrval);

  } else if (mainldrReading == 1 && rainSensorValue < 850) {


    Serial.println("It's raining and night detected ");
    Serial.print("Rain sensor readings:");
    Serial.println(rainSensorValue);
    digitalWrite(LIGHT1, HIGH);
    digitalWrite(LIGHT2, HIGH);
    if (testldrval > 1000) {
      Serial.println("Faulty Light");
      Blynk.virtualWrite(V3, s5);
      tone(buzz, 1000);
      delay(1000);
    }
    Blynk.virtualWrite(V1, rainSensorValue);
    Blynk.virtualWrite(V2, mainldrReading);
    String s2 = "It's raining and night detected";
    Blynk.virtualWrite(V3, s2);
    Blynk.virtualWrite(V4, testldrval);

  } else if (mainldrReading == 1 && distance <= 15) {
    Serial.println("Motion and night detected! ");
    digitalWrite(LIGHT1, HIGH);
    digitalWrite(LIGHT2, HIGH);
    Blynk.virtualWrite(V0, distance);
    Blynk.virtualWrite(V2, mainldrReading);
    String s3 = "Motion and night detected! ";
    if (testldrval > 1000) {
      Serial.println("Faulty Light");
      Blynk.virtualWrite(V3, s5);
      tone(buzz, 1000);
      delay(1000);
    }
    Blynk.virtualWrite(V3, s3);
    Blynk.virtualWrite(V4, testldrval);

  } else {

    analogWrite(LIGHT1, brightness / 6);
    analogWrite(LIGHT2, brightness / 6);
    Serial.println("Night detected!");
    String s4 = "Night detected";
    if (testldrval > 1000) {
      Serial.println("Faulty Light");
      Blynk.virtualWrite(V3, s5);
      tone(buzz, 1000);
      delay(1000);
    }
    Blynk.virtualWrite(V3, s4);
    Blynk.virtualWrite(V2, mainldrReading);
    Blynk.virtualWrite(V4, testldrval);
  }
}

BLYNK_WRITE(V5) {
  int value = param.asInt();
  Serial.print("Button Value: ");
  Serial.println(value); // Print the value to the serial monitor for debugging

  if (value == 1) {
    digitalWrite(LIGHT1, HIGH); // Turn the LED ON
    Serial.println("LED turned ON");
  } else {
    digitalWrite(LIGHT1, LOW);  // Turn the LED OFF
    Serial.println("LED turned OFF");
  }
}



void loop() {
  Blynk.run();
  timer.run();
}
``

Serial monitor output:
16:49:24.416 -> [678] Connecting to Name
16:49:37.448 -> [13710] AT vession:1.2.0.0(Jul  1 2016 20:04:45)
16:49:37.482 -> SDK version:1.5.4.1(39cb2
16:49:43.567 -> [19818] +CIFSR:STAIP,"192.168.223.201"
16:49:43.602 -> +CIFSR:STAMAC,"c8:c9:a3:b8:5c:81"

16:49:43.628 -> [19830] Connected to WiFi
16:49:49.015 -> [25263] Ready (ping: 17ms).
16:50:24.579 -> [60840] Ready (ping: 53ms).
16:51:00.064 -> [96320] Ready (ping: 11ms).
16:52:01.212 -> [157441] Ready (ping: 12ms).
16:53:12.375 -> [228587] Ready (ping: 11ms).
16:53:37.959 -> [254183] Ready (ping: 11ms).

It displays 'Ready' message when the system is shown as online on blynk. I have cross checked wifi connectivity and template details. How can I solve this?
2

Your Arduino Uno’s processor isn’t fast enough to emulate a serial port operating at this speed using the SoftwareSerial library.

SoftwareSerial ports shouldn’t be uses for speeds higher than 9600 baud on the Uno.
Both the Uno and the ESP-01 need to be communicating at the same baud rate for this to work correctly, so your ESP-01 needs to be configured to use 9600 baud too.

You should be looking at the serial monitor output of the Uno to understand what is happening with the connection attempts to Blynk.

You should read this for more info…

Pete.

3

Still i am facing the same issue

4

I’m not sure how you hope to get further assistance if you don’t share any information about the changes that you’ve made and how you’ve reconfigured your ESP-01. And, without seeing your serial monitor output text…

Pete.