GHOST RUNNER PROJECT NO. 34 BYERS, KELSEY H. DREEBIN, CHARLES W. PERBOHNER, ETHAN R.

OBJECTIVES Deliver a visual real-time LED display of a runner’s best time (single user) or the overall best runner’s time (multiple users) on a track to aid in training. Effectively use RFID readers/tags to create the best possible timing feedback for a given runner. Reliable and quick interface relationship between the RFID and the LED Microcontrollers.

REVIEW ORIGINAL DESIGN AND R&V

ORIGINAL DESIGN Key Requirements: Main Microcontroller Interface with Modular Microcontroller Store and compute 8 user’s timing data Modular Microcontroller Interface with Main Microcontroller Control LED Strip Interpret RFID Reader/Tag signals

UPDATED DESIGN Key Requirements: RFID Microcontroller Interpret RFID Reader/Tag signals Transmit timing data to LED Microcontroller Store and compute 8 user’s timing data LED Microcontroller Receive timing data from RFID Microcontroller Control LED Strip

PROJECT BUILD AND FUNCTIONAL TESTS

WHY RFIDS Alternatives: GPS, Bluetooth, Lasers Active vs. Passive Wearables

RFID SECTION Read range of 4±0.5 in. Segmented track Recognition of multiple tags (users) Array of Data Interface with LED Section

LED SECTION Interface with RFID Section Segmented track, evenly spaced Differentiated users by colors Start Sequence

SOFTWARE FLOWCHART

PCB SECTION Testing Procedure: Prototyped on breadboard Schematic and layout in Eagle Continuity Mulitimeter Layout for RFID Reader PCB

Physical PCB for MicrocontrollersMicroprocessor: ATMega328P-PU

SUCCESSES AND CHALLENGES

SUCCESSES Multiple user tag identification with times Calculation of lap timing data Serial data transfer Continuous update after each lap

CHALLENGES RFID Reader’s serial requirement Fully functional PCBs Microprocessor not optimal Sequential read delay Display all users at once on LEDs

FUTURE WORK More capable microprocessor with parallel serial functionality Wireless communication Increased RFID read range Marketability of project