The project aims at developing an advanced Electronic Voting Machine (EVM) which helps in free and fair way of conducting elections which are basis for democratic country like India.   India is world’s largest democracy. It is perceived to be charismatic one as it accommodates cultural, regional, economical, social disparities and still is able to stand on its own. Fundamental right to vote or simply voting in elections forms the basis of India democracy. In India all earlier elections be it state elections or centre elections a voter used to cast his/her vote to his/her favorite candidate by putting the stamp against his/her name and then folding the ballot paper as per a prescribed method before putting it in the Ballot box. This is a long, time-consuming process and very much prone to errors. This situation continued till election scene was completely changed by Electronic Voting Machine (EVM). No more ballot paper, ballot boxes, stamping, etc. all this condensed into a simple box called ballot unit of the Electronic Voting Machine (EVM).   This project consists of 3 unit’s viz. Control unit, Election officer system and a Voting system. The voter polls his vote in the voting system by simply pressing button against his favorite leader which is indicated through the LCD display. Also, the voter need to confirm once again by pressing the confirmation button available in the system, also indicated through LCD and Buzzer. Once confirmation button is pressed, voter cannot change his vote. The voter confirmation is passed to election officer’s system, where election officer need to confirm it by pressing the button available in his system and he gets the confirmation of vote polled from the control unit through an LED indicator. The control unit consists of a Microcontroller, start button, stop button, reset and result for different operations of EVM. The votes casted for particular candidate in that particular section of constituency is shown through an LCD display. To perform this intelligent task, Microcontroller is loaded with an intelligent program written in embedded ‘C’ language.        

The main objectives of this project are:

1. Tamper free Electronic Voting Machine (EVM).
2. Easy to cast the vote.

        The major building blocks of this project are:

1. Regulated Power Supply.
2. PIC Microcontroller.
3. Push buttons.
4. LCD display unit.
5. Buzzer.
6. Crystal
7. Reset.
8. LED Indicators.

      Software’s used:    

• PIC-C compiler for Embedded C programming.
• PIC kit 2 programmer for dumping code into Micro controller.
• Express SCH for Circuit design.

              Regulated Power Supply:

               

Block Diagram:          

video: