nodeMcuMQTT-OneWire

/****************************************
 * Include Libraries
 ****************************************/
#include "UbidotsESPMQTT.h"
#include <OneWire.h>
#include <DallasTemperature.h>
/****************************************
 * Define Constants
 ****************************************/
#define TOKEN "....." // Your Ubidots TOKEN
#define WIFINAME "....." //Your SSID
#define WIFIPASS "....." // Your Wifi Pass
#define MQTTCLIENTNAME "....." // Your MQTT Client Name, it must be unique so we recommend to choose a random ASCCI name
#define Pin D3

float temp;
OneWire ourWire(Pin);
DallasTemperature sensors(&ourWire);

Ubidots client(TOKEN, MQTTCLIENTNAME);
/****************************************
 * Auxiliar Functions
 ****************************************/
void callback(char* topic, byte* payload, unsigned int length) {
  Serial.print("Message arrived [");
  Serial.print(topic);
  Serial.print("] ");
  for (int i=0;i<length;i++) {
    Serial.print((char)payload[i]);
  }
  Serial.println();
}
/****************************************
 * Main Functions
 ****************************************/
void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  client.wifiConnection(WIFINAME, WIFIPASS);
  sensors.begin();
  client.begin(callback);
  }
void loop() {
  // put your main code here, to run repeatedly:
  if(!client.connected()){
      client.reconnect();
      }
  
  sensors.requestTemperatures();       //Prepare the sensor for reading
  
  temp = sensors.getTempCByIndex(0);
  
  Serial.print(sensors.getTempCByIndex(0)); //Read and print the temperature in Celsius
  client.add("temperature", temp); //Insert your variable Labels and the value to be sent
  delay(1000);
  Serial.println("Grados Centigrados");
  client.ubidotsPublish("control");
  
  client.loop();
  }