Raspberry Pi Project – Home Automation

 “The Internet of Things is not a concept; it is a network, the true technology-enabled Network of all networks.” – Edewede Orivoh.

In our World, Technology is emerging every minute. Every hour, new inventions are replacing older technology. These advancements in technology have been to a level where machines do everything which a human can. A machine is able to every work of a human. So, after all these machines works, let us talk about on special technology. This technology is called Home Automation.

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What is Home Automation?

Home Automation is the technology which provides you with the power to access your home appliances and other things with a mobile phone. This is possible using a network connectivity throughout the globe. The Home Automation term may be used for isolated programmable devices, like thermostats and sprinkler systems, but home automation more accurately describes homes in which nearly everything — lights, appliances, electrical outlets, heating, and cooling systems — are hooked up to a remotely controllable network. From a home security perspective, this also includes your alarm system, and all of the doors, windows, locks, smoke detectors, surveillance cameras and any other sensors that are linked to it.

Why use Home Automation?

The first and most obvious beneficiaries of this approach are “smart” devices and appliances that can be connected to a local area network, via Ethernet or Wi-Fi. However, electrical systems and even individual points, like light switches and electrical outlets, were also integrated into home automation networks, and many businesses have even explored the potential of IP-based inventory tracking. Although the day is still far off when you’ll be able to use your mobile browser to track down a lost sock, home networks are capable of including an increasing number of devices and systems.

Following are some advantages of Home Automation which you will find useful:

  • Adds Safety Through Appliance and Lighting Control.
  • Secures Home Through Automated Door Locks.
  • Increases Awareness Through Security Cameras.
  • Increases Convenience Through Temperature Adjustment.
  • Saves Time.
  • Saves Money and Increases Convenience.
  • Contributes to Economy.
  • Increases Peace of Mind.
  • Allows you Control When out of Town.
  • Keeps Tabs On Your Children.

What is Raspberry Pi?

Raspberry Pi
Raspberry Pi

The Raspberry Pi is a series of small single-board computers developed in the United Kingdom by the Raspberry Pi Foundation to promote teaching of basic computer science in schools and in developing countries.

This Raspberry Pi is a low cost credit-card sized computer which uses a computer, a mouse and a keyboard. It is a capable little device that enables people of all ages to explore computing and to learn how to program in languages like Scratch and Python. It’s capable of doing everything you’d expect a desktop computer to do, from browsing the internet and playing high-definition video, to making spreadsheets, word-processing, and playing games.

What’s more, the Raspberry Pi has the ability to interact with the outside world and has been used in a wide array of digital maker projects, from music machines and parent detectors to weather stations and tweeting birdhouses with infra-red cameras. This is one of the emerging Technologies which could change the upcoming future.

Learn more about the Internet of Things, by clicking here.

IoT based Home Automation using Raspberry Pi

Home Automation
Home Automation

The electronic device that you build as part of this project can assist a user in controlling all the home appliances via WiFi technology. The home automation device that you build is combined with almost all the home appliances and is used to control them remotely from any part of the world. Raspberry Pi is a miniature size computer capable of performing all the functions as that of a computer. Now, we have to connect the home appliances to the Raspberry Pi board with help of relay driver modules. Relay Driver Modules will facilitate the On/Off actions based on the load given. The system will be connected to the internet through WiFi and a cloud interface will be created to control the appliances from a remote location.

You can also connect this device to an Android App. Create your own Android app by clicking here. By using this app, you will be able to monitor and control the home appliances from any part of the world with ease. You can also include a PIR sensor with this project to make it switch ON automatically the appliances whenever a person enters the room and switch OFF the appliances whenever the person leaves the room.

Raspberry Pi Architecture

Raspberry Pi Architecture
Raspberry Pi Architecture

The Raspberry Pi has the ability to perform the actions of a fully capable computer. This is an open source hardware technology which is the combination of a programming language and an Integrated Development Environment (IDE). The Raspberry Pi has four distinct power modes,

  1. The run mode: The central processing unit (CPU) and all functionality of the ARM11 core will be available at this mode.
  2. The standby mode: The parts of the CPU that process instructions will no longer run in this mode. The power circuits on the core will remain active. A process generating a special call to the CPU called an interrupt will quickly wake the core.
  3. The shutdown mode: The board will be in a complete shutdown.
  4. The dormant mode:  All the caches are ON. Core is OFF.

Raspbian OS Integration

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Raspbian OS is the operating system available for Raspberry Pi. Debian Wheezy Linux operating system is its base. Moreover, we have to optimize this operating system for its usage on Raspberry Pi.

Relay Driver (IC ULN2803 APG)

Most importantly, make sure that your relay driver IC must have the following features,

  1. 500-mA rated collector current
  2. High voltage outputs – 50 V
  3. Output clamp diodes
  4. Inputs compatible with various types of logic

Implementation

Below are the steps that best describe the conditions that you need to provide in the program to build an IoT based home automation system

  1. Start the system
  2. Initialize Raspberry Pi, PIR, Relay Driver
  3. PIR sensor detector
  4. Switch ON the appliance connected to the relay
  5. Control the appliances through an Android App
  6. Stop

Programming language: Python Programming Kit required to develop IoT based Home Automation using Raspberry Pi:

  • Raspberry Pi
  • Relay Driver Module

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Technologies you will learn by working on IoT based Home Automation using Raspberry Pi:

  • Home Automation
  • IoT
  • Automation in general
  • Smart Systems

Hope by this article, you will successfully be able to automatize you Home. If you have any queries, feel free to drop it in the comments section. To learn more about Automation, IoT, Smart Systems and many more, Click Here.

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