There still ouput eventho i disconnected my sensor, why is this happening

#define BLYNK_TEMPLATE_ID           "TMPLhgfWcuh4"
#define BLYNK_DEVICE_NAME           "Quickstart Device"
#define BLYNK_AUTH_TOKEN            "EX5b-NLSVTF08VONqb6YlwMjy8um5OfF"

#define BLYNK_PRINT Serial
#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#define ONE_WIRE_BUS 4
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

char ssid[] = "bb";
char pass[] = "amirizzani12";


char auth[] = BLYNK_AUTH_TOKEN;

const int sensorPin = A0;


const int minReading = 0;
const int maxReading = 500;

void setup() {
  {
    sensors.begin();
  }
{
  
    Serial.begin(9600);
  // Connect to WiFi
  WiFi.begin(ssid, pass);
  while (WiFi.status() != WL_CONNECTED) 
   
    Serial.print(".");
  }
  Serial.println("");
  Serial.println("WiFi connected");

  // Connect to Blynk
  Blynk.begin(auth, ssid, pass);
  Serial.println("Blynk connected");
}

void loop() {
  // Read the analog value from the sensor
  int sensorValue = analogRead(sensorPin);
  Serial.println(sensorValue);
  sensors.requestTemperatures();
float temperature = sensors.getTempCByIndex(0);
Blynk.virtualWrite(V1, temperature);

  // Send the value to Blynk
  Blynk.virtualWrite(V0, sensorValue);

  // Wait a little before reading the sensor again
  delay(1000);
}


19:32:53.254 → WiFi connected
19:32:53.254 → [4041] Connecting to bb
19:32:53.288 → [4067] Connected to WiFi
19:32:53.322 → [4094] IP: 192.168.245.38
19:32:53.357 → [4122]
19:32:53.357 → ___ __ __
19:32:53.392 → / _ )/ /_ _____ / /__
19:32:53.426 → / _ / / // / _ / '/
19:32:53.459 → /
//_, /////_
19:32:53.459 → /
__/ v1.0.1 on ESP8266
19:32:53.493 →
19:32:53.526 → [4278] Connecting to blynk.cloud:80
19:32:53.593 → [4501] Ready (ping: 63ms).
19:32:53.661 → Blynk connected
19:32:53.661 → 8
19:32:55.473 → 6
19:32:57.290 → 3
19:32:59.104 → 6
19:33:00.925 → 6
19:33:02.768 → 7
19:33:04.587 → 8
19:33:06.407 → 17
19:33:08.234 → 14
19:33:10.055 → 4
19:33:11.873 → 3
19:33:13.687 → 13
19:33:15.519 → 7
19:33:17.338 → 16
19:33:19.165 → 17
19:33:20.975 → 8
19:33:22.779 → 4
19:33:24.623 → 3
19:33:26.440 → 13
19:33:28.267 → 14
19:33:30.088 → 8

Your void loop is missing the

Blynk.run();

Command.
Also, you should read this
https://docs.blynk.io/en/legacy-platform/legacy-articles/keep-your-void-loop-clean

Reading the value of the analog pin can still produce a result even if there is nothing connected to the pin.

A voltage of 3.3v applied to the analog pin will produce an analog reading of 1023, so a reading of around 15 equates to only 0.05v at the analog pin, which is easily induced - especially if you have wiring in the area of the board or you’re touching the board with your fingers.

Pete.

disconnected all the wires only supply to the wemos and its still displaying the values. how should i overcome this

and i also added blynk.run in my loop, it still the same

Stop reading the value of the pin, or pull the pin to GND using a short wire.

Pete.

Blynk connected
7
7
6
14
14
7
14
14
14
48
7
7
14
14

still the same