09-04-2014, 12:27 PM
Automatic College Bell (AT89S52 & DS1307)
Automatic College Bell .pdf (Size: 940.06 KB / Downloads: 241)
INTRODUCTION
This Project takes over the task of Ringing of the Bell in Colleges. It replaces
the Manual Switching of the Bell in the College. It has an Inbuilt Real Time
Clock (DS1307) which track over the Real Time. When this time Equals to the
Bell Ringing time, then the Relay for the Bell is switched On.
The Bell Ringing time can be Edited at any Time, so that it can be used at
Normal Class Timings as well as Exam Times. The Real Time Clock is
displayed on LCD display. The Microcontroller AT89S52 is used to control all
the Functions, it get the time through the keypad and store it in its Memory.
And when the Real time and Bell time get equal then the Bell is switched on
for a predetermined time.
WHAT IS EMBEDDED TECHNOLOGY
Embedded technology is software or hardware that is hidden embedded
in a large device or system. It typically refers to a fixed function device,
as compared with a PC, which runs general purpose application.
Embedded technology is nothing new. It all around us and has been for
years. An early example of embedded technology is the engine control
unit in a car, which measures what setting to give the engine. Your
coffee maker has embedded technology in the form of a
microcontroller, which is what tells it to make the coffee at 6 a.m. the
vending machine has it too. Overall, billions of devices woven into
everyday life use embedded technology. In the past embedded
technology existed in standalone device vending machines and copiers
that did their jobs with little regard for what went on around them,. But
as technology has learned to connect device to the internet and to each
other, embedded technology potential has grown.