Voting System with Aadhaar Card & Fingerprint Using Arduino Uno

Introduction

The Voting System with Aadhaar Card & Fingerprint Using Arduino Uno is a secure and automated electronic voting system designed to eliminate voter fraud and ensure accurate election results. By integrating Aadhaar card authentication and biometric fingerprint verification, this system provides a reliable and foolproof method for conducting elections.

Components Used

• Arduino Uno – Microcontroller for processing authentication and votes
• Fingerprint Sensor (R307/GT511C3) – Biometric authentication for voter verification
• RFID Reader – Reads Aadhaar card details for identity verification
• LCD Display (16×2 or 20×4) – Displays voting status and instructions
• Push Buttons or Touchscreen – Allows voters to select candidates
• Buzzer & LED Indicators – Provides feedback on authentication and voting status
• SD Card Module – Stores vote counts securely
• Wi-Fi Module (ESP8266/NodeMCU) – Optional for IoT-based online monitoring

Working Principle

1. Aadhaar Card Authentication – The voter scans their Aadhaar-linked RFID card.
2. Fingerprint Verification – The system checks the fingerprint against a pre-registered database.
3. Voting Process – If the voter is authenticated, they can select a candidate using push buttons or a touchscreen.
4. Vote Recording & Storage – The vote is recorded securely in an SD card or uploaded to an online database.
5. Result Compilation – The final votes are counted automatically and displayed.

Key Features

✔️ Secure & Fraud-Proof – Aadhaar and fingerprint verification ensure only registered voters cast votes.
✔️ Automated & Efficient – Eliminates manual vote counting errors and speeds up the process.
✔️ Tamper-Proof Data Storage – Votes are securely stored to prevent manipulation.
✔️ User-Friendly Interface – Simple LCD display and push buttons for easy operation.
✔️ Optional IoT Integration – Enables remote vote monitoring and real-time results.

Applications

✅ Government Elections – Secure and automated voting for local and national elections.
✅ Institutional Voting – Used in universities, organizations, and societies for elections.
✅ Corporate Decision-Making – Secure voting system for corporate board decisions.

This Arduino-based voting system ensures a transparent, secure, and efficient election process, reducing manual intervention and eliminating the risks of fraudulent voting.