Simple ESP Temp Sensor

SEC01.ino

#define BLYNK_PRINT Serial

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include "config.h"

unsigned long i = 0;

float sample(){
  uint16_t tt = analogRead(A2);
  float temp = tt*3.3/4096.0;
  temp = temp - 0.5;
  temp = temp / 0.01;
  return temp*2;
}

void setup() {
  pinMode(A2, INPUT);
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  Serial.println("Connected!");
}

void loop() {
  Blynk.run();
  if (millis()-i>=10000){
    Blynk.virtualWrite(V0, sample());
    i = millis();
  }
}