Recently created a demo application to generate sample humidity and temperature values. The data is sent to IoT Hub in Azure, then the data is sent to a data stream and finally the data is visualized with PowerBI.
Creating a Private Ethereum Blockchain
These are basic instructions for creating a private Ethereum blockchain using Geth on Mac OSX. Geth is a multipurpose command line tool that runs a full Ethereum node. Geth offers multiple interfaces: the command line subcommands and options, a JSON-RPC server and an interactive console. The Geth console is a JavaScript environment that contains all of the main features that you probably want.
Open the Mac OSX Terminal console and:
First: Install Homebrew and make sure it is up to date:
brew update
brew upgrade
Second: Use these commands to install Ethereum:
brew tap ethereum/ethereum
brew install ethereum
Third: Create a private blockchain:
geth genesis
*Note: At this point the Mac OSX Terminal console will show many real-time log entries. This real-time display of log entries makes it impossible to use the console to enter any additional commands. You will need to open a Geth console.
Fourth: Open a Geth console that won’t display all log entries on screen:
Open a second Mac OSX Terminal console and type:
geth attach
Fifth: Create a personal account:
From the newly opened Geth console type:
personal.newAccount()
Enter a memorable password.
References:
