Micro-controller based Automatic College Bell

This Project  task is Ring the Bell in School or colleges automatically after an perticular interval. It replaces the Manual Switching of the Bell in the School or 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 changed at any Time, so that it can be used at Normal Class Timings as well as Exam Times or weekend timing. The Real Time Clock is displayed on four 7-segment display. The Microcontroller AT89S8252 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.
An internal clock will run inside the controller which will turn on the buzzer at the desired time periods. PC interface is provided so as to send the data to the computer.

Working : for working of project refer  block diagram .

Requirement :

• Microcontroller AT89S8252
• IC DS1307
• 4*3 Keypad
• LED
• 7- Segment
• Crystal oscillatory 
• Transistor 
• Bulb
• Different set of Capacitor and Resistor
• Diode

Circuitry :

  Screen Shot:

 

Download Everything  Related to This project : PCB layout , Circuitry diagram , Micro controller program and lots more. Here

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password: betaengineers.net

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