Published August 22, 2016

Control your Things by Messenger

Control and manage your things by Facebook.

BeginnerProtip1 hour6,626

Things used in this project

Hardware components

NodeMCU ESP8266 Breakout Board

Software apps and online services

Messenger

Das Coisas Taurus Platform

Story

Use Messenger to control your devices

Have you ever thought to control your devices by sending messages through Facebook Messenger?

Using the Taurus platform you can send commands to update data from connected sensors and change the states of actuators. You can turn off or turn on a lamp in your home remotely, for example.

You only need to have Facebook and TaurusSystem accounts to start!

Get Started

In this example, we will control an LED built in NodeMCU board via Facebook Messenger. The code is available in the attachments. First, go to Alfatech page and start a dialogue. Follow these steps to control the LED:

Image 1 : Start dialogue

Send "conf serial" to save your Taurus serial into the bot.

Image 2: conf serial

Type "conf digital actuator" to send your actuator ID and the value you want to send.

Image 3: conf digital actuator

Type "update digital" to send the value to digital actuator registered in the platform.

Image 4: update digital

You can also send data to sensors or control analog actuators using this API, type "help" in the conversation and do what you want!

You are now able to control everything you want using messenger API.

Hope you enjoy!

Best Regards.

NodeMCU code

/**
 * Leonardo Gonçalves - Das Coisas IoT Solutions
 *
 *
 *
 */

#include <Arduino.h>

#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>

#include <ESP8266HTTPClient.h>

#define USE_SERIAL Serial

ESP8266WiFiMulti WiFiMulti;
String ID = "ACTUATOR_ID";
int VAR = 0;
String GET, GETCREATE;
String V;
void setup() {

  USE_SERIAL.begin(115200);
  // USE_SERIAL.setDebugOutput(true);
  pinMode(BUILTIN_LED, OUTPUT);     // Initialize the BUILTIN_LED pin as an output
  USE_SERIAL.println();
  USE_SERIAL.println();
  USE_SERIAL.println();
  digitalWrite(BUILTIN_LED, HIGH);
  for (uint8_t t = 4; t > 0; t--) {
    USE_SERIAL.printf("[SETUP] WAIT %d...\n", t);
    USE_SERIAL.flush();
    delay(1000);
  }

  WiFiMulti.addAP("SSID", "PASSWORD");

}

void loop() {
  // wait for WiFi connection
  if ((WiFiMulti.run() == WL_CONNECTED)) {
    HTTPClient http;
    URL();
    USE_SERIAL.print("[HTTP] begin...\n");
    // configure traged server and url
    //http.begin("192.168.1.12", 443, "/test.html", true, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"); //HTTPS
    http.begin("104.131.189.228", 80, GET); //HTTP
    USE_SERIAL.print("[HTTP] GET...\n");
    // start connection and send HTTP header
    int httpCode = http.GET();
    if (httpCode) {
      // HTTP header has been send and Server response header has been handled
      USE_SERIAL.printf("[HTTP] GET... code: %d\n", httpCode);

      // file found at server
      //if(httpCode == 200) {
      String payload = http.getString();
      int posicao = payload.indexOf(ID);
      if (posicao == -1 && httpCode == 200)
      {
        //CREATE();
      }
      String dado = payload.substring(posicao + 5, posicao + 6);
      USE_SERIAL.print("Dado: ");
      USE_SERIAL.println(dado);
      if (dado == "1")
      {
        digitalWrite(BUILTIN_LED, LOW);//ANODO COMUM, ACENDE COM LOW
      }
      if (dado == "0")
      {
        digitalWrite(BUILTIN_LED, HIGH);
      }
      USE_SERIAL.println(payload);
      //}
    } else {
      USE_SERIAL.print("[HTTP] GET... failed, no connection or no HTTP server\n");
    }
  }
  delay(1000);
}

void URL(void)
{
  GET = "http://104.131.189.228/ws/webresources/GetDigitais?key=SERIAL"; // Put your Taurus Serial Here!
  String estado = ",0)";
  GETCREATE = "http://104.131.189.228/ws/webresources/Create?key=SERIAL&&load=(";// Put your Taurus Serial Here!
  GETCREATE = GETCREATE + ID + estado;
  /*
  VAR++;
  V = String(VAR);
  USE_SERIAL.println(V);
  GET=GET+V;*/
}
void CREATE(void)
{
  URL();
  HTTPClient http;
  USE_SERIAL.println("Componente não existente, criando ...");
  http.begin("104.131.189.228", 80, GETCREATE); //HTTP
  USE_SERIAL.print("[HTTP] GET...\n");
  // start connection and send HTTP header
  int httpCode = http.GET();
  if (httpCode) {
    // HTTP header has been send and Server response header has been handled
    USE_SERIAL.printf("[HTTP] GET... code: %d\n", httpCode);

    // file found at server
    //if(httpCode == 200) {
    String payload = http.getString();
    int posicao = payload.indexOf(ID);
  }
}