BANSAL INSTITUTE OF RESEARCH TECHNOLOGY &

SCIENCE, BHOPAL

PRESENTATION ON

“COIN BASED ENERGY SAVER”

SUBMITTED TO:

PROF. PRAKASH SAXENA

PROF. SHUBHANKA AGRAWAL

SUBMITTED BY:

SANDEEP LODHI 0506EC121062

SURABHI MALVIYA 0506EC121076

VISHWASH KR. SINGH 0506EC121082

DEPARTMENT OF

ELECTRONICS & COMMUNICATION

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OUTLINE

• INTRODUCTION

• BLOCK DIAGRAM

• CIRCUIT DIAGRAM

• CODING

• APPLICATIONS & FUTURE SCOPE

• COMPONENT DISCRIPTION &PROJECT COST

• REFERENCES

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INTRODUCTION

• IN THIS PROJECT WE WILL BE DESIGNING AND IMPLEMENTING A COIN BASED ENERGY SAVER WITH THE AID OF A ATMEL AVR ATMEGA16 MICROCONTROLLER , LCD AND COIN SENSOR .

• A COIN BASED ENERGY SAVER IS A TYPE OF ENERGY SAVER THAT SAVE THE ENERGY , MONEY AND ENVIRONMENT .

• THIS TYPE OF PROJECT REDUCE THE WASTAGE OF ELECTRICITY.

• THIS TYPE OF PROJECT HELPFUL TO THE RURAL PUBLIC WHERE GRID POWER IS NOT AVAILABLE EVERYWHERE FOR PARTICULAR/FULL DAY TIME.

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BLOCK DIAGRAM

LCD

LM358

POWER SUPPLY

IR SENSO

R

RELAY

ATMEGA16

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CIRCUIT DIAGRAM

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CODING#define F_CPU 1000000UL#include<avr/io.h>#include<util/delay.h>#include <avr/interrupt.h>int bal;ISR(INT0_vect){

bal=bal+20;}void lcmd(char a){

PORTA= a&0xf0;PORTA&= ~(1<<PA0);PORTA&= ~(1<<PA1);PORTA|= (1<<PA2);PORTA&= ~(1<<PA2);_delay_ms(5);

PORTA= a<<4;PORTA&= ~(1<<PA0);PORTA&= ~(1<<PA1);PORTA|= (1<<PA2);PORTA&= ~(1<<PA2);_delay_ms(5)

}

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CODINGvoid ldata(char a){

PORTA= a&0xf0;PORTA|= (1<<PA0);PORTA&= ~(1<<PA1);PORTA|= (1<<PA2);PORTA&= ~(1<<PA2);_delay_ms(5);

PORTA= a<<4;PORTA|= (1<<PA0);PORTA&= ~(1<<PA1);PORTA|= (1<<PA2);PORTA&= ~(1<<PA2);_delay_ms(5);

} void print(char str[]){

int i=0;while(str[i]!=0){

ldata(str[i]);i++;

}}

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CODINGvoid vshow (char add, unsigned int i) { char d0,d1,d2,d3;

d0=i%10; i=i/10; d1=i%10; i=i/10; d2=i%10; d3=i/10; lcmd(add); ldata(0x30|d3); ldata(0x30|d2); ldata(0x30|d1); ldata(0x30|d0); }

void main (void){ bal=0;

PORTD|=1<<PD2;DDRA=0xff;DDRD|=1<<PD0;GICR|=1<<INT0;MCUCR=1<<ISC01;

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CODING lcmd(0x0 lcmd(0x02);lcmd(0x28);lcmd(0x0e);sei(); lcmd(0x80); print("BALANCE STATUS");

while(1){ vshow(0xc0,bal);

if(bal>0){ lcmd(0xca);

print("on ");PORTD|=1<<PD0; }else{ lcmd(0xca); print("off");

PORTD&=~(1<<PD0);_delay_ms(1000); }if(bal>0)bal=bal-1; }

}

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APPLICATIONS THIS SIMPLE CIRCUIT CAN BE USED AT

HOTEL’S , RAILWAY STATION , BUS STAND, HILL STATION’S , SHOPPING MALL ETC .

THIS TYPE OF PROJECT CAN BE USED AT RURAL AND URBAN AREA’S .

THE SOURCE OF DEVICE OPERATING IS OBTAINED FROM DIRECT GRID AND SOLAR ENERGY IN CASE OF NON- AVAILABILITY OF GRID POWER

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FUTURE SCOPE

• IN THE FUTURE WE CAN USE SOLAR ENERGY FOR POWER SUPPLY.

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COMPONENT REQUIRED

• MICROCONTROLLER- ATMEGA16

• 7805- VOLTAGE REGULATOR

• SPST SWITCH (BUTTON)

• RESISTOR- 1K, 330OHM

• DPDT SWITCH

• MOLEX

• LM358

• IR SENSOR

• RELAY

• NPN TRANSISTOR

• LCD

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AVR MICROCONTROLLER

• AVR WAS DEVELOPED IN THE YEAR 1996 BY ATMEL. THE ARCHITECTURE OF AVR WAS DEVELOPED BY ALF-EGIL BOGEN AND VEGARD WOLLAN.

• AVR DERIVES ITS NAME FROM ITS DEVELOPERS AND STANDS FOR ALF-EGIL BOGEN VEGARD WOLLAN RISC MICROCONTROLLER, ALSO KNOWN AS ADVANCED VIRTUAL RISC.

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LCD(LIQUID CRYSTAL DISPLAY)• A 16X2 LCD MEANS IT CAN DISPLAY 16 CHARACTERS PER LINE AND THERE ARE 2 SUCH LINES. THIS LCD HAS TWO REGISTERS.

• 1.COMMAND/INSTRUCTION REGISTER- STORES THE COMMAND INSTRUCTIONS GIVEN TO THE LCD. A COMMAND IS AN INSTRUCTION GIVEN TO LCD TO DO A PREDEFINED TASK LIKE INITIALIZING, CLEARING THE SCREEN, SETTING THE CURSOR POSITION, CONTROLLING DISPLAY ETC.

•  2.DATA REGISTER- STORES THE DATA TO BE DISPLAYED ON THE LCD. THE DATA IS THE ASCII VALUE OF THE CHARACTER TO BE DISPLAYED ON THE LCD

TRANSISTOR

• THESE DEVICES COME IN EITHER NPN OR PNP CONFIGURATIONS. AN NPN BIPOLAR TRANSISTOR USES A SMALL INPUT CURRENT AND POSITIVE VOLTAGE AT ITS BASE (RELATIVE TO ITS EMITTER) TO CONTROL A MUCH LARGER COLLECTOR-TO-EMITTER CURRENT.

DIODE

• A DIODE IS A TWO-TERMINAL DEVICE.

• DIODES HAVE TWO ACTIVE ELECTRODES BETWEEN WHICH THE SIGNAL OF INTEREST MAY FLOW, AND MOST ARE USED FOR THEIR UNIDIRECTIONAL ELECTRIC CURRENT PROPERTY.

RELAYS• RELAYS ARE ELECTRICALLY ACTUATED SWITCHES.

• RELAYS ARE USED WHERE IT IS NECESSARY TO CONTROL A CIRCUIT BY A LOW-POWER SIGNAL (WITH COMPLETE ELECTRICAL ISOLATION BETWEEN CONTROL AND CONTROLLED CIRCUITS), OR WHERE SEVERAL CIRCUITS MUST BE CONTROLLED BY ONE SIGNAL.

RELAY DRIVER

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PROJECT COST

• AVR MICROCONTROLLER 1 PIECE 160/-

• LCD 16X2 1 PIECE 150/-

• LM358 1 PIECE 60/-

• MOLEX CONNECTOR 4 PIECE 20/-

• DPDT SWITCH 1 PIECE 5/-

• 7805 VOLTAGE REGULATOR 1 PIECE 10/-

• SPST BUTTON 20 PIECE 50/-

• RELAY 1 PIECE 40/-

• IR SENSOR 2 PIECE 20/-

• PCB BOARD 1 PIECE 90/-

• BC548 NPN TRANSISTOR 1 PIECE 10/-

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PROJECT COST

• DIODE 1 PIECE 5/-

• POT 10K 1 PIECE 15/-

• CAPACITOR 1000UF 1 PIECE 10/-

• LED 1 PIECE 1/-

• RESISTOR 6 PIECE 6/-

• WIRE 2 METER 15/-

• BULB 1 PIECE 10/-

• PLUG 1 PIECE 5/-

• HOLDER 1 PIECE 10/-

• TOTAL AMOUNT 692/-

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REFERENCES

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THANK

YOU