Jose Cruz
Published © GPL3+

Remote Module for Arduino Home Controller

Light activate with Arduino Home Controller without use of relays and cables, only using wifi, with this little module based in Wemos D1.

IntermediateFull instructions provided16 hours1,656
Remote Module for Arduino Home Controller

Things used in this project

Hardware components

Wemos D1 Mini
Espressif Wemos D1 Mini
×1
K3020P Optocoupler, Phototriac Output, Non-Zero Crossing
×1
Triac BT136 series E sensitive gate
×1
Resistor 1k ohm
Resistor 1k ohm
×1
Capacitor 100 nF
Capacitor 100 nF
×1
Resistor 170 ohm
×1
3 Pins Connector
×1
SparkFun Breadboard Power Supply 5V/3.3V
SparkFun Breadboard Power Supply 5V/3.3V
×1
Bulb Socket
×1
Bulb box
×1

Software apps and online services

Arduino IDE
Arduino IDE

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)

Story

Read more

Schematics

Arduino Home Controller Remote Module

Code

ArduinoHomeRemoteModule.ino

Arduino
Sketch file for Wemos D1 remote module
// Arduino Home Remote Module Wifi
// v1.0
//
// Copyright (C)2018 Jose Cruz. All right reserved
// web: https://sites.google.com/view/raeiot/home
//
#include <ESP8266WiFi.h>
#include "PubSubClient.h"
#include <string.h>


//#define isDEBUG

// Your Amazon email linked skill
#define MyID "YOUR AMAZON EMAIL"

const char *ssid = "YOUR WIFI SSID"; // Wifi SSID
const char *pass = "YOUR WIFI PASSWORD";   // Wifi password
const char* clientId = "pub-c-e93def7f-95aa-475a-aa60-cc3cd32ee8a7/sub-c-ec04dbbc-0893-11e8-8e75-cea83f8405bb/e73766bf-3d70-4280-8395-001a08ebeb72";

//PubNub server MQTT
const int mqtt_port = 1883;
const char* mqtt_server = "mqtt.pndsn.com";
// Suscribe topic
const char* topic = "AHC_IOT_01";

WiFiClient wclient; 
PubSubClient client(wclient, mqtt_server, mqtt_port);

//Define gpio pins from WemosD1
#define room_light D6   

// Callback to process all msgs received
void callback(const MQTT::Publish &pub)
{
  String msg = "";   // All messages from MQTT
  msg = pub.payload_string();
  msg.trim();
#ifdef isDEBUG
  Serial.println(msg);
  Serial.println(pub.topic());
#endif
  // If is my ID and Topic_room detect command On or Off
  if ((msg.indexOf(MyID) > 0) && (msg.indexOf("\"topic\":\"Topic_room\"") > 0)) {
    digitalWrite(room_light, msg.indexOf("\"command\":\"on\"") > 0 ? HIGH : LOW);
  }
}

//Reconnect to MQTT broker if lost connection
void reconnect() {
  // Loop until we're reconnected
  while (!client.connected()) {
#ifdef isDEBUG    
    Serial.print("Attempting MQTT connection...");
    // Attempt to connect
#endif    
    if (client.connect(clientId)) {
#ifdef isDEBUG       
      Serial.println("MQTT broker connected");
#endif      
      client.subscribe(topic);
#ifdef isDEBUG       
      Serial.println("Suscribe to topic at MQTT broker Ok ...");
#endif
    } else {
#ifdef isDEBUG            
      Serial.println(" Failed connect, try again in 5 seconds");
#endif      
      // Wait 5 seconds before retrying
      delay(5000);
    }
  }
}



void setup()
{
  delay(2000);
#ifdef isDEBUG      
  Serial.begin(115200);
  Serial.println("Init Arduino Home Remote Module v1...");
#endif

  pinMode(room_light, OUTPUT);
  digitalWrite(room_light, LOW);

  client.set_callback(callback);

  if (WiFi.status() != WL_CONNECTED)
  {
#ifdef isDEBUG
    Serial.print("Connecting to ");
    Serial.println(ssid);
#endif
    WiFi.mode(WIFI_STA);
    WiFi.begin(ssid, pass);
    //if (WiFi.waitForConnectResult() != WL_CONNECTED)
    //  return;
#ifdef isDEBUG
    Serial.println("WiFi connected");
#endif
  }
}

void loop()
{
  if (!client.connected()) {
    reconnect();
  }
  client.loop();
}

Github

Credits

Jose Cruz

Jose Cruz

2 projects • 7 followers

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