Control Home Appliance From Internet Using Arduino and WiFi

Control home appliances from anywhere in world using Internet. Make your home smart with Arduino and ESP8266 WiFi Module.

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Control Home Appliance From Internet Using Arduino and WiFi

Things used in this project

Hardware components

Arduino UNO

Espressif ESP8266 ESP-01

Relay (generic)

Breadboard (generic)

Two AC Bulbs(Red,Yellow)

Jumper wires (generic)

Software apps and online services

Arduino IDE

REST API

Story

In this project showing how you can control your home appliances from anywhere in world using Internet. In our daily life we always forget to switch off Lights, TV, AC, Fan and other appliances and unnecessary we waste electricity and money of course, which is very precious for us.

So we have created a very simple video that you can follow and convert your normal home to Smart Home and you can control from anywhere in world.

Detail description available on www.iotboys.com

Visit www.iotboys.com for more projects .

Code

Source Code

#include "SoftwareSerial.h"

String ssid ="WIFI_NAME";
String password="WIFI_PASSWORD";

SoftwareSerial esp(3, 2);// RX, TX

String server = "www.iotboys.com"; //Your Host 
String uri = "/YOUR_API"; // Your URI

int RED_BULB=5; 
int YELLOW_BULB=6;

void setup() {

  pinMode(RED_BULB, OUTPUT);
  pinMode(YELLOW_BULB, OUTPUT);
  
  digitalWrite(RED_BULB, HIGH);
  digitalWrite(YELLOW_BULB, HIGH);
  
  esp.begin(9600);
  
  Serial.begin(9600);

  connectWifi();
  
  httpget();
  
  delay(1000);

}
void connectWifi() {

String cmd = "AT+CWJAP=\"" +ssid+"\",\"" + password + "\"";

esp.println(cmd);

delay(4000);

if(esp.find("OK")) {

Serial.println("Connected!");

}
else {

Serial.println("Cannot connect to wifi ! Connecting again..."); }
connectWifi();

}
/////////////////////////////GET METHOD///////////////////////////////
void httpget() {
esp.println("AT+CIPSTART=\"TCP\",\"" + server + "\",80");//start a TCP connection.

if( esp.find("OK")) {

Serial.println("TCP connection ready");

} delay(1000);

String getRequest =
"GET " + uri + " HTTP/1.0\r\n" +
"Host: " + server + "\r\n" +
"Accept: *" + "/" + "*\r\n" +
"Content-Type: application/json\r\n" +
"\r\n";

String sendCmd = "AT+CIPSEND=";

esp.print(sendCmd);

esp.println(getRequest.length() );

delay(500);

if(esp.find(">")) { 
  Serial.println("Sending.."); 
  esp.print(getRequest);
  
if( esp.find("SEND OK")) { 
  
Serial.println("Packet sent");

while (esp.available()) {

String response = esp.readString();

int RED_BULB_ON = response.indexOf("RED_BULB>TRUE")>0?1:0;
int YELLOW_BULB_ON = response.indexOf("YELLOW_BULB>TRUE")>0?1:0;

if(RED_BULB_ON==1)
{
  digitalWrite(RED_BULB, LOW);
}
else
{
  digitalWrite(RED_BULB, HIGH);
}
if(YELLOW_BULB_ON==1)
{
  digitalWrite(YELLOW_BULB, LOW);
}
else
{
  digitalWrite(YELLOW_BULB, HIGH);
}
}
esp.println("AT+CIPCLOSE");

}
}
}

void loop() {
  httpget();
}