Interface Project Bar Code Reader with IR Transmission

Interface Project: Bar Code Reader with IR Transmission Team Members Sponsor: Mr. David Perlman Coordinator: Professor George Slack Team Members: Eric Bohannon (CE) right Michael Winslow (EE) left Scott Urban (ID) middle Objective To design a cost effective, compact, battery powered card reader capable of wireless transmission to a host computer. Goal To create a different kind of interaction between the user and computer by having the user enter cards into a card reader and have the computer respond to them. Functionality The card, containing a bar code, will be produced by an inkjet or laser printer on a piece of paper. Each card will have the dimensions of a credit card. When a card is entered into the card reader it will be read and its data will be sent to the host computer. The host computer will receive the bar code through the wireless signal and perform a computer instruction or media application (picture, music) for each different bar code. The product is designed for an audience of 10 to adult. • • Requirements Entire product is low cost Card reader (physical structure holding hardware) is compact Card reader is battery powered Card produced on inkjet or laser printer Card Dimensions (credit card) Software platform independent Wireless transmission (>1 meter) End software executes instruction for each bar code Testing 1. Card containing bar code 2. Card Reader Success rate for card reader and user interface OS Attempted Reads Successful Unsuccessful % Successful %Unsuccessful Windows MAC 768 763 5 99. 34 0. 66 251 5 98. 04 1. 96 Battery Life / Low Battery Detect / IR Transmission Distance Card Reader: Idle Current: 45 u. A Max Current: 60 m. A Battery Life: ~2 years @ 240 reads/day 3. Card Reader Hardware Low Battery Detect Threshold: 3. 35 V Max IR Transmission Distance: 2 m Receiver: Max Current: 1. 6 m. A 4. User Interface / File Execution