IOT-Blockchain
IoT-and-Blockchain
A simple IoT and Blockchain based application to demonstrate the use of blockchain in IoT.
Getting Started
Prerequisites
- Node.js 22+
- Python 3+
- Raspberry Pi (for actual GPIO control, optional)
Steps
Before starting with app, you need to compile the smart contract and start a local blockchain. Follow the steps below to do so:
- Install required dependencies:
npm install
- Start a local blockchain using Hardhat:
npx hardhat node
- Compile contract in a separate terminal:
npx hardhat compile
- Install python dependencies and start the app:
pip install -r requirements.txt # or `pip3 install -r requirements.txt`
python app.py # or `py app.py` or `python3 app.py`
Open http://localhost:8000 in your browser to see the app and Interact with the IoT device.
Demo
Built With
- Flask - The web framework used for the backend
- Web3.py - Python library for interacting with Ethereum blockchain
- Hardhat - Ethereum development environment for compiling, testing, deploying, and interacting with smart contracts
- Solidity - Ethereum’s smart contract programming language
- gpiozero - A simple interface to GPIO devices with Raspberry Pi
Safety
This is experimental software and subject to change over time.
This is a proof of concept and is not ready for production use. It is not audited and has not been tested for security. Use at your own risk. I do not give any warranties and will not be liable for any loss incurred through any use of this codebase.
License
This project is licensed under the MIT License - see the LICENSE file for details