Send message from Blynk app to ESP8266

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#define BLYNK_PRINT Serial


#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

#include <OneWire.h>
#include <DallasTemperature.h>
// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "auth";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "ssid";
char pass[] = "pass";

// Data wire is plugged into port D2 on the ESP8266
#define ONE_WIRE_BUS D2

// Setup a oneWire instance to communicate with any OneWire devices
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to Dallas Temperature.
DallasTemperature sensors(&oneWire);

float tempSensor1;



void setup()
{
  // Debug console
  Serial.begin(115200);
  pinMode(LED_BUILTIN, OUTPUT);
  Blynk.begin(auth, ssid, pass);
 
}
BLYNK_WRITE(V0)
{
  String textIn = param.asStr();
  Serial.print(textIn + "\n");
}
void loop()
{
  Blynk.run();
//  logTime();
  delay(500);
}