Can't get the data from dth sensor

Need Help With My Project
,
1

in blynk platform temperature and humudity was not able to show the live data rest can show the data
and its keep tells cannot get the sensor value

here is my code assist me with this


/* Connections

Relay. D3

Btn.   D7

Soil.  A0

PIR.   D5

SDA.   D2

SCL.   D1

Temp.  D4

*/

//Include the library files

#include <LiquidCrystal_I2C.h>

#define BLYNK_PRINT Serial

#include <ESP8266WiFi.h>

#include <BlynkSimpleEsp8266.h>

#include <DHT.h>

//Initialize the LCD display

LiquidCrystal_I2C lcd(0x3F, 16, 2);

char auth[] = "WVSuOSp7V4cZqnZ9BAvwx65VTl-RnKEJ";  //Enter your Blynk Auth token

char ssid[] = "D-Link-vimal";  //Enter your WIFI SSID

char pass[] = "ypkrex8dxx";  //Enter your WIFI Password

DHT dht(D4, DHT11);//(DHT sensor pin,sensor type)  D4 DHT11 Temperature Sensor

BlynkTimer timer;

//Define component pins

#define soil A0     //A0 Soil Moisture Sensor

#define PIR D5      //D5 PIR Motion Sensor

int PIR_ToggleValue;

void checkPhysicalButton();

int relay1State = LOW;

int pushButton1State = HIGH;

#define RELAY_PIN_1       D3   //D3 Relay

#define PUSH_BUTTON_1     D7   //D7 Button

#define VPIN_BUTTON_1    V12

//Create three variables for pressure

double T, P;

char status;

void setup() {

  Serial.begin(9600);

  lcd.init();

  lcd.backlight();

  pinMode(PIR, INPUT);

 pinMode(RELAY_PIN_1, OUTPUT);

 digitalWrite(RELAY_PIN_1, LOW);

  pinMode(PUSH_BUTTON_1, INPUT_PULLUP);

  digitalWrite(RELAY_PIN_1, relay1State);

  Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);

  dht.begin();

  lcd.setCursor(0, 0);

  lcd.print("  Initializing  ");

  for (int a = 5; a <= 10; a++)

  {

    lcd.setCursor(a, 1);

    lcd.print(".");

    delay(500);

  }

  lcd.clear();

  lcd.setCursor(11, 1);

  lcd.print("W:OFF");

  //Call the function

  timer.setInterval(100L, soilMoistureSensor);

  timer.setInterval(100L, DHT11sensor);

  timer.setInterval(500L, checkPhysicalButton);

}

//Get the DHT11 sensor values

void DHT11sensor() {

  float h = dht.readHumidity();

  float t = dht.readTemperature();

  if (isnan(h) || isnan(t)) {

    Serial.println("Failed to read from DHT sensor!");

    return;

  }

  Blynk.virtualWrite(V0, t);

  Blynk.virtualWrite(V1, h);

  lcd.setCursor(0, 0);

  lcd.print("T:");

  lcd.print(t);

  lcd.setCursor(8, 0);

  lcd.print("H:");

  lcd.print(h);

}

//Get the soil moisture values

void soilMoistureSensor() {

  int value = analogRead(soil);

  value = map(value, 0, 1024, 0, 100);

  value = (value - 100) * -1;

  Blynk.virtualWrite(V3, value);

  lcd.setCursor(0, 1);

  lcd.print("S:");

  lcd.print(value);

  lcd.print(" ");

}

//Get the PIR sensor values

void PIRsensor() {

  bool value = digitalRead(PIR);

  if (value) {

    Blynk.logEvent("Motion dedection","WARNNG! Motion Detected!"); //Enter your Event Name

    WidgetLED LED(V5);

    LED.on();

  } else {

    WidgetLED LED(V5);

    LED.off();

  }  

  }

BLYNK_WRITE(V6)

{

 PIR_ToggleValue = param.asInt();  

}

BLYNK_CONNECTED() {

  // Request the latest state from the server

  Blynk.syncVirtual(VPIN_BUTTON_1);

}

BLYNK_WRITE(VPIN_BUTTON_1) {

  relay1State = param.asInt();

  digitalWrite(RELAY_PIN_1, relay1State);

}

void checkPhysicalButton()

{

  if (digitalRead(PUSH_BUTTON_1) == LOW) {

    // pushButton1State is used to avoid sequential toggles

    if (pushButton1State != LOW) {

      // Toggle Relay state

      relay1State = !relay1State;

      digitalWrite(RELAY_PIN_1, relay1State);

      // Update Button Widget

      Blynk.virtualWrite(VPIN_BUTTON_1, relay1State);

    }

    pushButton1State = LOW;

  } else {

    pushButton1State = HIGH;

  }

}

void loop() {

    if (PIR_ToggleValue == 1)

    {

    lcd.setCursor(5, 1);

    lcd.print("M:ON ");

      PIRsensor();

      }

     else

     {

    lcd.setCursor(5, 1);

    lcd.print("M:OFF");

    WidgetLED LED(V5);

    LED.off();

     }

if (relay1State == HIGH)

{

  lcd.setCursor(11, 1);

  lcd.print("W:ON ");

  }

  else if (relay1State == LOW)

  {

    lcd.setCursor(11, 1);

    lcd.print("W:OFF");

    }

          

  Blynk.run();//Run the Blynk library

  timer.run();//Run the Blynk timer

  }
2

This sketch is even worse than the one you posted in your other topic.

I’d suggest that you focus on one Blynk issue at a time, and adopt a more Blynk friendly coding style before you seek advice with this particular issue.

Pete.

3

sure, ill complete the previous topic and ill be here

4

A suggestion for writing your code, also allows the community to assist better:

if (isnan(h) || isnan(t)) 
{
    Serial.println("DHT Sensor Read: Failed");
    return 0;
}
else
{
    Serial.println("DHT Sensor Read: Successful");
    Blynk.virtualWrite(V0, t);
    Blynk.virtualWrite(V1, h);
    lcd.setCursor(0, 0);
    lcd.print("T:");
    lcd.print(t);
    lcd.setCursor(8, 0);
    lcd.print("H:");
    lcd.print(h);
    return 1;
}