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In this new series we begin to explore how Salesforce.com technologies can allow the physical and digital worlds to interact to provide better experiences for customers. In this first example, we read an RFID card using an Arduino that then sends the information via HTTP to a Node.js application running in Heroku. The Node.js application communicates with Salesforce.com's REST API using the nforce wrapper. The resulting Case information from Salesforce.com is then sent to displays at the service center using web sockets via Socket.io.