Iot home using esp8266


#1

IOT HOME USING ESP8266

code:

//Google Assistant Home Automation
#include <ESP8266WiFi.h>
#include “Adafruit_MQTT.h”
#include “Adafruit_MQTT_Client.h”

#define Relay1 D1
#define Relay2 D2
#define Relay3 D3
#define Relay4 D4

#define WLAN_SSID “JioFi2_CD6058” // Your SSID
#define WLAN_PASS “sce2dgvhcj” // Your password

/************************* Adafruit.io Setup *********************************/

#define AIO_SERVER “io.adafruit.com” //Adafruit Server
#define AIO_SERVERPORT 1883
#define AIO_USERNAME “username” // Username
#define AIO_KEY “AIO key” // Auth Key

//WIFI CLIENT
WiFiClient client;

Adafruit_MQTT_Client mqtt(&client, AIO_SERVER, AIO_SERVERPORT, AIO_USERNAME, AIO_KEY);

Adafruit_MQTT_Subscribe Light1 = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME"/feeds/Relay1"); // Feeds name should be same everywhere
Adafruit_MQTT_Subscribe Light2 = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME “/feeds/Relay2”);
Adafruit_MQTT_Subscribe Light3 = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME “/feeds/Relay3”);
Adafruit_MQTT_Subscribe Light4 = Adafruit_MQTT_Subscribe(&mqtt, AIO_USERNAME “/feeds/Relay4”);

void MQTT_connect();

void setup() {
Serial.begin(115200);

pinMode(Relay1, OUTPUT);
pinMode(Relay2, OUTPUT);
pinMode(Relay3, OUTPUT);
pinMode(Relay4, OUTPUT);

// Connect to WiFi access point.
Serial.println(); Serial.println();
Serial.print("Connecting to ");
Serial.println(WLAN_SSID);

WiFi.begin(WLAN_SSID, WLAN_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println();

Serial.println(“WiFi connected”);
Serial.println("IP address: ");
Serial.println(WiFi.localIP());

mqtt.subscribe(&Light1);
mqtt.subscribe(&Light3);
mqtt.subscribe(&Light2);
mqtt.subscribe(&Light4);
}

void loop() {

MQTT_connect();

Adafruit_MQTT_Subscribe *subscription;
while ((subscription = mqtt.readSubscription(20000))) {
if (subscription == &Light1) {
Serial.print(F("Got: "));
Serial.println((char *)Light1.lastread);
int Light1_State = atoi((char *)Light1.lastread);
digitalWrite(Relay1, Light1_State);

}
if (subscription == &Light2) {
  Serial.print(F("Got: "));
  Serial.println((char *)Light2.lastread);
  int Light2_State = atoi((char *)Light2.lastread);
  digitalWrite(Relay2, Light2_State);
}
if (subscription == &Light3) {
  Serial.print(F("Got: "));
  Serial.println((char *)Light3.lastread);
  int Light3_State = atoi((char *)Light3.lastread);
  digitalWrite(Relay3, Light3_State);
}
if (subscription == &Light4) {
  Serial.print(F("Got: "));
  Serial.println((char *)Light4.lastread);
  int Light4_State = atoi((char *)Light4.lastread);
  digitalWrite(Relay4, Light4_State);
  
}

}

}

void MQTT_connect() {
int8_t ret;

if (mqtt.connected()) {
return;
}

Serial.print("Connecting to MQTT… ");

uint8_t retries = 3;

while ((ret = mqtt.connect()) != 0) {
Serial.println(mqtt.connectErrorString(ret));
Serial.println(“Retrying MQTT connection in 5 seconds…”);
mqtt.disconnect();
delay(5000);
retries–;
if (retries == 0) {
while (1);
}
}
Serial.println(“MQTT Connected!”);

}