Accessible Display Design to Control Home Area Network

Abstract

The project aims in designing a system which
makes operating of electrical appliances in home
through Android mobile phone possible. The
controlling of electrical appliances is done wirelessly
through Android smart phone using the Bluetooth
feature present in it. Here in this project the Android
smart phone is used as a remote control for
operating the electrical appliances. Android is a
software stack for mobile devices that includes an
operating system, middleware and key applications.
Android boasts a healthy array of connectivity
options, including Wi-Fi, Bluetooth, and wireless
data over a cellular connection (for example, GPRS,
EDGE (Enhanced Data rates for GSM Evolution),
and 3G). Android provides access to a wide range of
useful libraries and tools that can be used to build
rich applications. In addition, Android includes a full
set of tools that have been built from the ground up
alongside the platform providing developers with
high productivity and deep insight into their
applications. Bluetooth is an open standard
specification for a radio frequency (RF)-based,
short-range connectivity technology that promises to
change the face of computing and wireless
communication. It is designed to be an inexpensive,
wireless networking system for all classes of portable
devices, such as laptops, PDAs (personal digital
assistants), and mobile phones. It also will enable
wireless connections for desktop computers, making
connections between monitors, printers, keyboards,
and the CPU cable-free.
The controlling device of the whole system is a
Microcontroller. Bluetooth module, 4-Relays board
are interfaced to the Microcontroller. The data
received by the Bluetooth module from Android
smart phone is fed as input to the controller. The
controller acts accordingly on the Relays to switch
connected electrical appliances. Also, In achieving
the task the controller is loaded with a program
written using Embedded ‘C’ language. .