AUTOMATIC COLLEGE BELL TIMER using IoT.pptx

PPT for Automatic College Bell Timer

1. TITLE: IOT BASED AUTOMATIC COLLEGE BELL TIMER PRESENTED BY : S.ABARNA [22TH0201] S.DEVADHARSHINI [22TH0220] S.H.FOUZIYA[22TH0227] D.HEMAVARSHINI [22TH0231] S.SWATHI [22TH0306] PROJECT GUIDE: MRS.S.SARANYA MANAKULA VINAYAGAR INSTITUTE OF TECHNOLOGY DEPARTMENT OF INFORMATION TECHNOLOGY

2. The main objective of this project is to implement an Automatic college bell system using an Arduino. In this Arduino based college bell circuit, we used three major components which are IC RTCDS1307, Arduino Uno Board, and 16x2 LCD modules. Here, Arduino is used for reading time from ds1307 and display it on 16x2 LCD. DS1307 sends time/date using 2 lines to arduino. A buzzer is also used for alarm indication, which beeps when alarm is activated. I N T R O D U C T I O N :

3. LCD DISPLAY 16*2 KEYPAD 3*1 B U ZZ E R A R D U I N O U N O B l o c k D i a g r a m :

4. COMPONENTS A r d u i n o U N O . 1 6 × 2 L C D . 1 K - o h m p o t e n t i o m e t e r . Buzzer. T h r e e p u s h b u tt o n s . Jumper wires. Breadboard. U S B c a b l e f o r u p l o a d i n g t h e code. 3 X 1 Keypad.

5. Arduino UNO Ar d u i n o i s a s o f t w a r e a s w e l l a s h a r d w a r e p l a t f o r m t h a t h e l p s i n m a k i n g e l e c t r o n i c projects. A r d u i n o b o a r d s a r e a b l e t o r e a d i n p u t s - l i g h t o n a s e n s o r , a f i n g e r o n a b u tt o n , or a Tw i tt e r m e ss a g e - a n d t u r n i t i n t o a n o u t p u t - a c t i v a t i n g a m o t o r , t u r n i n g o n a n L E D , p u b l i s h i n g s o m e t h i n g o n l i n e .

6. A 1 6 * 2 L C D d i s p l a y i s a l i q u i d c r ys t a l d i s p l a y t h a t c a n s h o w 1 6 c h a r a c t e r s i n e a c h o f i t s t w o r o w s , p r o v i d i n g a t o t a l o f 3 2 c h a r a c t e r s o f information. It’s commonly used to display alphanumeric i n f o r m a t i o n i n v a r i o u s e l e c t r o n i c d e v i c e s 16*2 LCD DISPLAY

7. A b u zz e r o r b ee p e r i s a n a u d i o s i g n a l i n g d e v i c e , w h i c h m a y b e mechanical, electromechanical, or piezoelectric. T y p i c a l u s e s o f b u zz e r s i n c l u d e alarm devices, timers, train, etc ,.. B U ZZ E R

8. KEYPAD A SMALL USUALLY NUMERICAL KEYBOARD. A S M A L L S E T O F K E Y S T H A T I S P A R T OF A LARGER KEYBOARD OR ANOTHER D E V I C E ( S U C H A S A T E L E P H O N E O R CALCULATOR)

9. ON THE POWER SUPPLY OF THE CIRCUIT THE BRIDGE CIRCUIT CONVERTS THE AC SUPPLY INTO DC SUPPLY AND VOLTAGE REGULATOR REGULATES THE SUPPLY. ON THE LED WE CAN ABLE TO VIEW TIME FORMAT AS PERIOD AND SECONDS THROUGH OUTPUT PORT. THE ELECTRONIC CIRCUIT RECEIVESSIGNAL AND DRIVES C O RR E S P O N D I N G R E L A Y . THE RELAY IS USED AS A SWITCH TO OPERATE THE BELL. WE PROGRAMMED THIS PROJECT AS TO HEAR THE BUZZER SOUND E V E R Y A F T E R O N E H O U R AN D W E C A N D I S P L A Y A S P E R T H E S C H E D U L E I N T H E P R O G R A M . WORKING:

10. INITIAL DISPLAY :

11. PERIOD 1 :

12. Used in educational institutes, c o ll e g es , s c h oo l s . C a n a l s o b e u se d i n i n d u s t r i es . It is an automatic system. H u m a n e rr o r s c a n b e a v o i d e d . S a f e t y i s a ss u r e d . ADVANTAGES:

13. CONCLUSION: Present day ringing bell in colleges or schools are carried out manually. The main disadvantage of this is that one person has to be alert for this. To overcome this, we have decided to prepare the circuit which will be operated automatically and the ringing of bell will start by its given time.