Mike Baer – Team Leader Tyler Davis – Chief Engineer TJ Binotto – The Mediator Eric Dixon – The Do All Electric Guy Ben Shelkey – Every Team Needs a Crazy Killian Castner – Who Brought This Kid AKA HuckStrapWhore

Project Decrip./High Level Customer Needs/Eng. Specs

System Architecture

System Block Diagram 4 Electrical System Diagram Backpack Electronics Housing/PCB Motorcycle System Motorcycle Battery 12VDC Transmitter Housing/PCB Quick Connect 12V->3.3V Regulation Xbee Transmitter Transmitter Signals 1.Headlight 2.Left Turn Signal 3.Right Turn Signal 4.Brake Light AC/DC 12VDC System NiMH Battery 12VDC USB Charger USB2.0USB2.0 5V 12V Xbee Receiver 3.3V Chest Strap PCB 12 LED Groups Battery Monitor / Fuses Battery Status LEDs µCon (MSP430) Ribbon Cable (2/2) Voltage Regulation 12V->5V 5V->3.3V 12V Darlington Light Drivers Ribbon Cable (1/2) User Interface Buttons Chest Strap Signals 1-4. Battery Status LEDs 5.Hazard Toggle 6.Brightness Toggle 7.3.3V Function Select Turn Signal mm Connector 2.1mm Connector Power Switch Function Select Brake 12V

Electrical Design Summary  Use Comparators to monitor battery voltage and drive status LEDs on chest strap. (Functional).  Use switching regulator to step down from 12V->5V, Linear for 5V->3.3V (Functional).  Use low power Xbee units to transmit receive wireless signals (Functional).  Have user input buttons on Chest Strap and Electronics Box (Functional).  Utilize MSP430 microcontroller for signal processing (Needs improvement).  Use additional light drivers, controlled by low voltage MSP430, to drive high voltage LEDs (Functional).

Software Design Summary  User Inputs Function Select (Input-Functional, Output-Not Functional) ○ Turn Signal ○ Brake Hazard (Functional) Brightness (Not Functional) ○ Needs proper use of PWM module  System Functions Low Battery Flag (Functional) USB Load Shed (Functional) Drive LEDs from Rx wireless signals (Functional) Drive LEDs at 60Hz (Not Functional) ○ Needs proper use of Timing module

Future Software/Electrical Improvements  Change output drive capability of comparators. Open-collector->Rail-to-Rail  Use a simpler and cheaper wireless device. Xbee->???  Implement full microcontroller functionality. Acquire a software “expert” Allow for proper use of MSP430 PWM and timing modules.  Implement regulation on 12V power line. Current voltage range is 10.5V-14.5V, will reduce to 10.5V-12V.

System Testing Summary

Concept Summary

Objective Project Evaluation: Success and Failure

Lessons Learned

Opportunities for Improvement