The document provides a technical overview of using RFID technology in retail stores to allow for behavioral targeting of customers by vendors. It describes an architecture that uses RFID scanners connected to Arduino boards to read tags, call a Force.com site to log scans and check for relevant offers, and receive instructions to display offers visually on aisle lights or send offers to customers' phones via SMS. Schematics and details of the communications and hardware are also included.

1. Salesforce of Things: RFID Retail
Technical Overview
January 4, 2012

2. Overview
• Business Case
• Architecture
• Schematic
• Communications
• Hardware

3. Business Case
• Allow a Retailer to offer behavioral targeting to vendors
• Base promotional offers on
– In-store location
– Weather
– Season
– Buying patterns
• Highlight offers visually with immediate displays in the aisles
• Highlight offers with SMS notifications

4. Architecture

5. Schematic

6. Breadboard Schematic

7. Communications
• RFID scanner reads a card
• Arduino makes web service call to sites page
– Sends RFID Tag and MAC address of scanner
– Encrypts using simple XOR cypher with key loaded into arduino
• Force.com stores tag scan
• Looks up in campaign if tag has offers for given aisle
• Controller sends back as response to arduino offer lights to light up
based on RFID tag
• Controller sends offer to customer’s phone using SMS via Twilio

8. Hardware