How to display temperature value on Blynk (Arduino + TMP36)

@Dmitriy This is the new code I’m running:

#define BLYNK_DEBUG // Optional, this enables lots of prints
#define BLYNK_PRINT Serial

#include <SoftwareSerial.h>
SoftwareSerial SwSerial(10, 11);
#define BLYNK_PRINT SwSerial
#include <BlynkSimpleSerial.h>

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "xxxx";

void setup()
{
  Serial.begin(9600);
  SwSerial.begin(9600);
  Blynk.begin(auth);
  // Default baud rate is 9600. You could specify it like this:
  //Blynk.begin(auth, 57600);
}

void loop()
{ 
  Blynk.run();
  // int sensorValue = analogRead(A0);
  // float volt = (sensorValue/1024.0) * 5;
  // int tempC = (volt - 0.5) * 100;
  // Blynk.virtualWrite(0, tempC);
} 

But in the serial monitor it only shows me my token. While in terminal, socat says “E open(”/dev/cu.usbmodem621", 016, 0666): Resource busy" and it tries to reconnect.

My board is the Arduino UNO.