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Group EE 2.2 – ID Card Access System

Project DescriptionApproach

Background/Motivation● The makerspace in Ingram Hall will host a

variety of equipment from soldering stations and 3D printers to metal and plastic mills.

● Improper use of this equipment can lead to damage of expensive machinery and personal injuries.

AcknowledgementsWe would like to thank the following:Dr. Compeau - InstructorMr. Hinkle - InstructorDr. Cook - SponsorDr. Stephan - Faculty advisorRobert Peavey - Technical assistance

Discussion/ConclusionThis project demonstrates the ability to use the existing Texas State Student ID cards and card readers to regulate access to the makerspace equipment. This design can be adapted to machines that require a range of voltages and to accommodate multiple machines while still providing students and administrators with valuable insight about times the machine is used.

● Designed for use in the Ingram Hall makerspace● Prevents students who have not completed

safety training from using certain equipment● Interfaces with the Texas State University ID

card system● Data about machine usage is collected and

analyzed

Sponsor: Dr. Ray Cook, Texas State University

ResultsTest Pass Criteria Result

University Door Access System Integration

The Arduino correctly outputs to the console when an ID with permissions is scanned and does not output to the console whenever an ID without permissions is held up to the card reader.

Pass

User Interface The proper output LED lights up (or the relay signal is activated/not activated) for each given use case.

Pass

ID Card Slot Arduino reads that the limit switch is closed when the ID card is inserted, and reads that the limit switch is open when no ID card is inserted.

Pass

Output Relay Voltage output from the relay is 120V ± 8%. Pass

Arduino/ Raspberry Pi Communication

Raspberry Pi correctly receives the signal that the Arduino sends.

Pass

Raspberry Pi Timestamping

Input data is stored with the correct timestamp. Pass

Data Analysis Algorithm

The popular use times, percentage of time used and whether the machine is currently available are correct.

Pass

Full System Integration

The tests will pass if the system produces the proper output for each given use case.

Pass

Use Analysis

Team Members

Evan Bell, Carly Inselmann, Taylor Moralez, Natalie Ownby

1) AuthenticationThe user is

authenticated by the Texas State University card

reader system using their student or faculty ID card.

ID Access System State Diagram

2) AuthorizationAfter receiving the

authentication signal from the card reader, the

system allows the user to enable and disable power to

the machine using an Arduino-

controlled outlet.

3) AccountabilityThe system sends data regarding when the machines are turned on and off to a

central Raspberry Pi via an RF transceiver. This data is analyzed to gain

insight about when the machine is typically used. This information will be displayed graphically and include the

percentage of time a machine is used and whether or not the machine is currently

available. This can be expanded to include other valuable statistics.

Sequence Diagram for

Arduino/ Raspberry Pi

Communication

Multiple Arduinos to one Raspberry Pi