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Components

SMART PLUG

We all enjoy utilising a single device, or main controller, to operate all of our devices in a home automation system. One such gadget that makes it very simple for us to do that is the WiFi Smart Plug. It gives you access to practically every wired gadget, including a table fan, lighting, air conditioning, etc. In my situation, I had long wished to create a WiFi Smart Plug that could turn on and off my air conditioning. A WiFi Smart Plug functions similarly to a power strip. It fits between the appliance you want to plug in and the power outlet. Most smart plugs connect to a central control hub through any Wi-Fi network. The hub then transmits data to a smartphone app using your Wi-Fi. The idea behind this WiFi Smart Plug is to enable you to switch gadgets on and off using your smartphone or any remote control. Simply plug it into a socket and turn on the power—it couldn't be easier. Now connect any lamps or other devices to the WiFi socket. I'm done now. The WiFi Smart Plug is now powered by AC power from the main outlet. It switches the following devices on and off at the user's request through the Android app.

Code

CODE

Arduino

#include <ESP8266WiFi.h>
#include "./DNSServer.h"
#include <ESP8266WebServer.h>

const byte        DNS_PORT = 53;          // 53 is set as DNS port
IPAddress         apIP(10, 10, 10, 1);    // Network Server
DNSServer         dnsServer;              // DNS server object
ESP8266WebServer  webServer(80);          // Webserver objectString

Home_Screen = "" //Page 1 - Home Screen HTML code
                      "<!DOCTYPE html><html>"
                      "<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">"
                      + style_detials +
                      "<div id=\"buttons\">"
                      "<a style=\"text-decoration:none;\" href=\"relay_ON\"> <button id=\"switchLight1\" class=\"controllButtons\">Turn ON</button> </a>"
                      "<a style=\"text-decoration:none;\" href=\"relay_OFF\"><button id=\"switchLight2\" class=\"controllButtons\">Turn OFF</button>  </a>"
                      "</div>"
                      "<body><h1>Welcome - CircuitDigest</h1>"
                      "</body></html>";

String ON_Screen = "" //Page 2 - If device is turned ON
                      "<!DOCTYPE html><html>"
                      "<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">"
                      + style_detials +
                      "<div id=\"buttons\">"
                      "<a style=\"text-decoration:none;\" href=\"relay_ON\"> <button id=\"switchLight1\" class=\"controllButtons\">Turn ON</button> </a>"
                      "<a style=\"text-decoration:none;\" href=\"relay_OFF\"><button id=\"switchLight2\" class=\"controllButtons\">Turn OFF</button>  </a>"
                      "</div>"
                      "<body><h1>Smart Plug - Turned ON</h1>"
                      "</body></html>";

String OFF_Screen = "" //Page 3 - If device is turned OFF
                      "<!DOCTYPE html><html>"
                      "<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">"
                      + style_detials +
                      "<div id=\"buttons\">"
                      "<a style=\"text-decoration:none;\" href=\"relay_ON\"> <button id=\"switchLight1\" class=\"controllButtons\">Turn ON</button> </a>"
                      "<a style=\"text-decoration:none;\" href=\"relay_OFF\"><button id=\"switchLight2\" class=\"controllButtons\">Turn OFF</button>  </a>"
                      "</div>"
                      "<body><h1>Smart Plug - Turned OFF</h1>"
                      "</body></html>";
pinMode(LED_BUILTIN, OUTPUT); //LED pin as output for indication
  pinMode(GPIO_2, OUTPUT); //GPIO pin as output for Relay control

  WiFi.mode(WIFI_AP); //Set ESP in AP mode
  WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));
  WiFi.softAP("ESP_Smart_Plug"); // Name your AP network

  dnsServer.start(DNS_PORT, "*", apIP);

  webServer.onNotFound([]() {
    webServer.sendHeader("Location", String("http://www.circuitdigest-automation.com/home.html"), true); //Open Home screen by default
    webServer.send ( 302, "text/plain", "");
  });
//ON_Screen
  webServer.on("/relay_ON", [](){ //If turn on Button is pressed
       digitalWrite(LED_BUILTIN, LOW); //Turn off LED
       digitalWrite(GPIO_2, HIGH);  //Turn off Relay
       webServer.send(200, "text/html", ON_Screen); //Display this screen
  });
//OF_Screen
  webServer.on("/relay_OFF", [](){ //If turn off Button is pressed
       digitalWrite(LED_BUILTIN, HIGH); //Turn on LED
       digitalWrite(GPIO_2, LOW); //Turn on Relay
       webServer.send(200, "text/html", OFF_Screen); //Display this screen
  });

Schematic and Layout

LAYOUT

ngdwasdfg.png

SCHEMATIC

Screenshot 2022-12-30 122349.png

CAD-Custom parts and enclosures

CAD FILE

smart_plug_01.stl

Download Gerbers

Dec 30,2022

958 views

SMART PLUG

Mobile controlling smart plug

958

Published: Dec 30,2022

Download Gerber file 7

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