##http://block-chain-client1.westeurope.cloudapp.azure.com
##web3 version .19 Used to communicate with the ethereum block chain and contracts using the Generic JSON RPC
##Node.js Used on the Raspberry pi to run scripts used to communicate with the NFC scanner ###mfrc522 library Used to communicate with the RFIO RC522 NFC scanner hardware
##Meteor Used to create the web front end that interacts with the orders Ethereum contract
##MongoDB Caches the orders from the Ethereum orders contract
##Raspberry Pi Model 3 (Wifi model) Using the Pi's GPIO SPI interface to communicate with the NFC/RFID tag reader hardware
##Remix web based Solidity IDE https://ethereum.github.io/browser-solidity Used to edit, debug, compile, and prepare the web deployment script
##GETH Used to deploy the compiled solidity code and interact with the Ethereum transaction node.
##MS Azure Ethereum Consortium Created simple three server private Ethereum network with two miners and one transaction node. Also created a fourth Ubuntu VM to host the Meteor contract app
#Project files:
##pi folder ###scan_ids.js This script poles the NFC scanner hardware waiting for a card/tag to be read. Once it reads the tag, it takes the unique ID from the tag and creates a contract order, then pushes the order to the Ethereum contract
##sol folder ###orders_contract.sol The solidity orders contract
##dapp folder ###orders.js The Meteor client + server script used to display the Ethereum contract orders. It subscribes to the contract's events and displays each new order as their mined by the Ethereum miners.
###orders.html The Meteor HTML template that rendres a simple HTML table to display the submitted orders
###lib/init.js The Meteor configuration file containing the path to the Ethereum transaction node