Nitesh Madhavi - Home Automation Blog

Home automation is one of the most common real-world applications of the Internet of Things (IoT). It uses internet-connected sensors, actuators, and cameras to let you monitor and control your home’s lighting, security, and appliances remotely — from anywhere, using a phone, tablet, or computer.

What is IoT (Internet of Things)?

IoT refers to devices that can connect to the internet and communicate with users or with each other over it. In a home automation context, these devices typically fall into four categories:

Sensors — for safety monitoring (fire, smoke, gas leak), security (door intrusion, glass break, motion), and equipment monitoring
Actuators — devices that control electrical switches, plug points, or equipment
Cameras — devices that stream video or images over the internet, such as video door phones
Smart appliances and equipment — sensors and actuators built directly into products like microwaves, refrigerators, or thermostats

How IoT powers home automation

The goal of home automation is to make homes safer, more secure, and more convenient. Each category of IoT device contributes to that goal in a specific way:

Sensors

Fire, smoke, gas leak, door intrusion, glass-break, and motion sensors are the backbone of a home’s safety and security layer — detecting problems and triggering alerts before they escalate.

Actuators

Actuators control the switches and plug points around your home — lighting, dimming, fan speed, curtain motors, and more — turning a passive switch into something you can automate, schedule, or trigger remotely.

Cameras and video door phones

Video door phones let you see and speak with visitors at your door in real time, whether you’re in the next room or on the other side of the city.

IR blasters

IR blasters extend automation to devices that only take infrared remote signals — air conditioners, fans, heaters, TVs, set-top boxes, and music systems — bringing them into the same connected system as your switches and sensors.

Thermostats

Thermostats combine a sensor (ambient temperature) with an actuator (AC or heater control) to maintain a set comfort level automatically, without manual adjustment.

Traditional home automation vs. IoT-based home automation

Home automation existed before IoT did. Older systems relied on dedicated wall-mounted panels or remotes that only worked while you were physically present at home, communicating over local wiring or short-range signals.

IoT changed that by connecting those same devices to the internet. The core difference:

	Traditional home automation	IoT-based home automation
Control location	On-site only	Anywhere with internet access
Communication	Local wiring / short-range signal	Internet (Wi-Fi, cellular)
Access device	Dedicated panel or remote	Phone, tablet, computer, voice assistant
Data & insights	None	Usage patterns, remote alerts, energy tracking

In short: IoT didn’t replace home automation — it’s the layer that made home automation remotely accessible, and that distinction is why the two terms are so often used interchangeably today.

Why Indian homeowners are adopting IoT-enabled automation

The shift toward connected homes in India is backed by market data, not just anecdote. Industry research values India’s home automation market at roughly $3.86 billion in 2024, with projections to grow to nearly $14.93 billion by 2033 — a compound annual growth rate above 16%. Home security and safety features alone account for close to half of current demand, driven in part by insurers offering premium discounts for IoT-enabled risk mitigation.

Adoption isn’t limited to security. Health monitoring and assisted-living use cases — fall-detection mats, medication reminders, remote consultations — are forecast to be one of the fastest-growing categories as India’s older population expands, while energy management features are gaining traction alongside rooftop solar installations.

BuildTrack’s IoT-based home automation solutions

BuildTrack brings all of the above — sensors, actuators, cameras, and thermostats — together into a single connected system designed for Indian homes, from individual apartments to full villa and senior-living installations. Explore our home automation solutions, including our smart touch switches, energy efficiency solutions, and building management systems for larger properties.

FAQs

Is home automation a part of IoT?

Yes. Home automation is one of the most widespread consumer applications of IoT — it uses internet-connected sensors and actuators to let you monitor and control home devices remotely.

What is IoT-based home automation?

It’s a home automation system where devices like sensors, actuators, cameras, and thermostats connect to the internet, so they can be monitored and controlled from anywhere rather than only on-site.

What’s the difference between home automation and IoT?

Home automation is the broader goal — making a home safer and more convenient. IoT is the technology (internet connectivity) that lets today’s home automation devices be controlled remotely rather than only locally.

What devices make a home “IoT-enabled”?

Common devices include smart switches and plugs, security sensors (smoke, gas, motion, door), video door phones, smart thermostats, and IR blasters that bring legacy remote-controlled appliances into the same connected system.

With the rise of smart homes, integrating air conditioners into automation systems has become increasingly common. Since most AC units, whether split systems, VRV, or FCUs are controlled using infrared (IR) remotes, many automation setups rely on IR blasters to replicate these controls via a mobile app.

At first glance, this feels like a simple and effective solution, but there’s a critical limitation that most users only discover after they start using it. It may not be providing you with the actual operating status of your AC!

How IR Blasters Work

IR blasters mimic your AC remote. Instead of pressing buttons on a physical remote, you tap controls in a Smart App. The app sends a signal (via Wi-Fi, Bluetooth, or the internet) to the IR blaster, which then transmits an infrared signal to the AC—just like a regular remote would.

It’s convenient, easy to set up, and widely used. However, the problem lies in what happens after the signal is sent.

The Problem: No Feedback from the AC

IR communication is one-way. Your AC receives commands, but it doesn’t send any confirmation back. This means:

The IR blaster does not know if the AC actually received the signal it sent
What you see on your Smart App may not reflect reality of AC status

When you press a button, you usually glance at the indoor unit to confirm it responded. That’s because even with a physical remote, there’s no feedback mechanism. IR blasters work the same way but without you being there to verify the result.

Your Smart App could be lying to you

Most automation apps display information like:

AC ON/OFF status
Temperature setting
Fan speed

But this data is not live feedback from the AC instead it is simply the last command sent from the app. The Smart App is showing you what it thinks happened not what actually happened and those two things can easily be different.

Common Real-Life Situations Where Things Go Wrong

1. Someone Uses the Physical Remote

Even in automated homes, people still use traditional remotes—it’s quick and convenient.

But when the AC is operated this way, the IR blaster is bypassed. The Smart App does not have this data and so the displayed status becomes incorrect. You might think the AC is OFF—while it’s actually running.

2. The IR Signal does not reach the AC

IR signals require a clear line of sight. Obstructions, placement or room conditions can prevent commands from reaching the AC reliably. The Smart App still assumes it worked and shows status as such, so the app and AC are not in sync.

You cannot trust the status shown by the system and this isn’t just inconvenient—it can lead to energy waste and higher bills.

A Better Alternative: IR Transceiver Technology

The IR Transceiver Technology solves this problem more effectively. An IR Transceiver Node sits directly at the AC’s IR receiver and acts as an intelligent intermediary:

It receives signals from any remote (including handheld remotes or smart phones with built-in IR) and – an IR Transceiver can be positioned to capture and manage incoming commands.
It receives the command and itself re-transmits to the AC

Since every command flows through the IR Transceiver Node:

The system always knows the last actual command executed

An IR Transceiver Node still does not get actual feedback from most ACs. A transceiver can verify if a signal was sent but it still cannot track the true state, however, yes it is better than IR blaster but does not guarantee actual status.

We can say that the syncing between the automation system and AC improves in comparison with IR blaster.

In short, when you move to IR Transceiver Node system you regain trust in your home automation system for accuracy and reliable status of your AC.