Wireless Home Automation using IOT (Internet Of Things) - LEKULE BLOG

Recent Posts

Tuesday, 23 August 2016

Wireless Home Automation using IOT (Internet Of Things)

The process of controlling or operating various equipment, machinery, industrial processes, and other applications using various control systems and also with less or no human intervention is termed as automation. There are various types of automation based on the application they can be categorized as home automation, industrial automation, autonomous automation, building automation, etc.,. In this article, let us discuss about wireless home automation using IOT (Internet of Things).

Home Automation

Home automation is the process of controlling home appliances automatically using various control system techniques. The electrical and electronic appliances in the home such as fan, lights, outdoor lights, fire alarm, kitchen timer, etc., can be controlled using various control techniques.

Wireless Home Automation using IOT (Internet of Things)

There are various techniques to control home appliances such as IOT based home automation over the cloud, home automation under WiFi through android apps from any smartphone, Arduino based home automation, home automation by android application based remote control, home automation using digital control, RF based home automation system and touch screen based home automation.
Various types of Home Automation Systems
Various types of Home Automation Systems

Wireless home automation using IOT is an innovative application of internet of things developed to control home appliances remotely over the cloud. The home automation system project can be developed by following simple steps shown below.

Required Components & Materials

Electrical and Electronic Components
Electrical and Electronic Components

The essential components and materials for home automation using IOT project can be listed as a Wi-Fi module, Opto-coupler, TRIAC, resistors, capacitors, diode, regulator, loads (home appliances). There are various eCommerce websites that are providing facility to purchase all the required components online such as a project kit consisting of individual components essential to design a particular project from www.edgefxkits.com, Edgefx also offers ready-made kit-plug and play type project kits and (Do It Yourself) DIY project kits for engineering students and electronic hobbyists.

Required Blocks for Home Automation Project

Home Automation using IOT Project Block Diagram
Home Automation using IOT Project Block Diagram

The home automation using IOT project consists of various blocks such as power supply, Optocoupler, WiFi module, TRIAC, voltage regulator, SMPS (Switch Mode Power Supply) and load.

Designing DIY Blocks of Home Automation System

There various modules and blocks used for designing home automation using IOT project such as WiFi module, voltage regulator, Optocoupler, TRIAC and so on.

Wi-Fi Module

Wi-Fi (Wireless Fidelity) is a wireless networking technology used for exchanging the information between two or more devices without using cables or wires. There are various Wi-Fi technologies like Wi-Fi 802.11a, 802.11b, 802.11g and 802.11n. Here, in this project Wi-Fi module is used to receive commands from the internet and activate loads through TRIAC & Optocoupler by executing a program written within the Wi-Fi module. Hence, no microcontroller is used in this project to drive loads.

Voltage Regulator

Voltage Regulator
Voltage Regulator

Voltage regulator is an electronic device used for regulating voltage in a power system. There are various types of voltage regulators such as variable voltage & fixed voltage regulators which are again subdivided into several types like electro-mechanical, automatic voltage, linear, hybrid regulators, etc.,. Here, in this project 3.3V voltage regulator is used to provide required power supply to a Wi-Fi module from 5V SMPS power supply.



The package of light emitting device and light sensitive device without any electrical connection is called as an Optocoupler or Optoisolator. There will be a beam of light used as a connection between these light emitting & light sensitive devices. The light emitting device is an LED and light sensitive device in this project is a TRIAC. Thus, Optocoupler and TRIAC are used to drive loads based on the signal received from the Wi-Fi module.

Connecting the Home Automation Circuit

Home Automation using IOT Project Circuit
Home Automation using IOT Project Circuit

The home automation using IOT project circuit can be connected using various electrical and electronic components, modules, blocks & connecting wires as shown in the above figure.

Home Automation using IOT

The load can be controlled and monitored using a web page with user configurable front end. The user can send commands through the allotted IP and these commands are fed to Wi-Fi module. The Wi-Fi module is configured to access internet using any nearby wireless modem. The commands received by a Wi-Fi module are executed by a program within a Wi-Fi module. The Wi-Fi module is interfaced to TRIAC & Optocoupler through the loads are turned ON & OFF based on commands. The load status (ON or OFF) will be displayed on the web page.
You can also check our home automation projects:

If you interested in designing electronics projects, then you can feel free to approach us for any technical help by posting your ideas, suggestions, comments and queries in the comments section below.
Post a Comment
My photo

Hi, I`m Sostenes, Electrical Technician and PLC`S Programmer.
Everyday I`m exploring the world of Electrical to find better solution for Automation. I believe everyday can become a Electrician with the right learning materials.
My goal with BLOG is to help you learn Electrical.