Published October 14, 2025 © MIT

🏠 Complete Home Automation Project Using KME Smart

Control all your home appliances using the KME Smart App — no coding needed! Build your own smart home easily with YaranaIoT Guru.

BeginnerShowcase (no instructions)8 hours18

🏠 Complete Home Automation Project Using KME Smart

Things used in this project

Software apps and online services

Arduino IDE

Story

Rohan, a passionate electronics learner, always wanted to make his home smart without learning complicated coding.One day, while browsing YouTube, he found YaranaIoT Guru’s video — “Complete Home Automation Project Using KME Smart.”

Following the tutorial, he connected his ESP board, linked the relays, and paired the setup with the KME Smart App.In just one evening, he could turn ON/OFF lights, fans, and even his room’s decorative LEDs — all from his phone!

His family was amazed to see everything working seamlessly.Now, Rohan proudly says —

“Thanks to YaranaIoT Guru, my house is smarter than ever before!”

“Thanks to YaranaIoT Guru, my house is smarter than ever before!”

💻 Code Setup

#include <WiFi.h>

const char* ssid = "YourWiFiName";
const char* password = "YourWiFiPassword";

int relay1 = 23;
int relay2 = 22;
int relay3 = 21;
int relay4 = 19;

void setup() {
  Serial.begin(115200);
  WiFi.begin(ssid, password);
  pinMode(relay1, OUTPUT);
  pinMode(relay2, OUTPUT);
  pinMode(relay3, OUTPUT);
  pinMode(relay4, OUTPUT);
  Serial.print("Connecting to WiFi...");
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("\nConnected to WiFi!");
}

void loop() {
  // Manual testing of relays
  digitalWrite(relay1, HIGH); delay(1000);
  digitalWrite(relay1, LOW); delay(1000);
}