Voting System with Arduino, Python GUI, and Blockchain Integration

Overview

This project is an electronic voting system that integrates an Arduino-based hardware setup, a Python GUI for live vote tracking, and blockchain technology (Ganache) for vote storage. It allows users to vote using physical buttons connected to an Arduino, displays vote counts on an LCD screen, and logs the votes into a Python-based graphical user interface (GUI). Additionally, votes can be stored on a local blockchain using Web3.

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Features

• Arduino-based voting system with physical buttons for casting votes.
• LCD display to show the available voting options.
• Live vote tracking GUI using Python's Tkinter.
• Serial communication between Arduino and Python.
• Blockchain integration using Ganache and Web3.py for vote storage.
• Manual voting option via the command line.
• Automatic winner declaration based on highest votes.

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Components Required

Hardware:

• Arduino board (e.g., Arduino Uno)
• I2C LCD Display
• Push buttons (5 total)
• Resistors (10kΩ, if needed)
• Jumper wires
• Breadboard

Software:

• Arduino IDE
• Python 3
• Required Python libraries:
  • tkinter (for GUI)
  • pyserial (for serial communication)
  • web3 (for blockchain interaction)
  • threading (for background processes)
• Ganache (for blockchain simulation)

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Setup and Installation

1. Arduino Setup

1. Connect the buttons to Arduino digital pins (with INPUT_PULLUP mode enabled).
2. Connect the I2C LCD display.
3. Upload the Arduino code (arduino.txt) using the Arduino IDE.
4. Ensure that the Arduino is connected to your PC via USB.

2. Python Setup

1. Install required Python libraries:

   pip install pyserial web3

2. Ensure that the Arduino is connected to COM5 (update the port if needed in the Python script).
3. Start Ganache and ensure it's running on http://127.0.0.1:7545.
4. Update the smart contract address in the Python script.

3. Running the System

1. Run the Arduino Code: Upload the script to the Arduino board.
2. Run the Python GUI: Execute the Python script (python.txt):

   python python.txt

3. Voting Process:
   • Press the corresponding button on Arduino to vote.
   • Votes will be displayed on the LCD and sent to Python via serial communication.
   • The Python GUI updates in real-time and stores votes in the blockchain.
   • Votes can also be manually entered via the command line.
   • The winner is displayed once voting stops.

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Expected Output

1. LCD displays voting options and updates when a vote is cast.
2. The Python GUI shows real-time vote counts.
3. Serial communication logs votes in the terminal.
4. Votes are stored in the blockchain (Ganache).
5. The system declares the winner after voting stops.

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