Project P13037 Notification Alert System Mark Calem – Electrical Engineering Jared Lytle – Electrical Engineering Muhammad Ibrahim – Electrical Engineering Professor George Slack – Guide/ Mechanical Resource Professor Gary Behm –Customer

Introduction 4 th iteration of Notification Alert System for hard of hearing users. Focused on reducing cost while optimizing performance ◦Improve lighting functionality ◦Switched to the MSP430 to reduce cost ◦ Added functionality as a tablet stand

Objectives To create a notification alert system ◦Wake user from sleep  Bed shaker  High intensity LEDs ◦Notify user of received texts, s, phone calls  Color coded LEDs

Customer Needs Bluetooth Communication to Android Devices Alarm will be set from Android APP Visual and Physical stimulus to wake user Alarm will work when Bluetooth Communication is lost Dock will contain a snooze and off button Indicators for calls/texts/ s

Specifications Spec. # ImportanceSource Specification (metric) Unit of Measure Marginal Value Ideal Value S11 CN5,CN8,CN 9,CN10Indication SystemRequirementn/a S22CN5 Variable flashing frequenciesfrequency2 settings3 settings S32CN2,CN3 Variable shaking frequenciesfrequency2 settings3 settings S41CN20Low Cost Manufacturin g Cost (US dollars) per 500 units4020 S51CN7 Alarm Activation (self- sustaining clock)Accuracy ± 5 minutes actual time± 1 minutes actual time S62CN22Lifetime of Productyears15 S71CN19Reliability% success9099 S82CN6 Alarm deactivates automaticallyminuets2010 S91CN12 Date and time will be set via the tabletFeaturena S101CN5 Brightness of High Intensities LED's LumensTBD S111CN11Snooze FunctionFeaturena S122CN14Bluetooth RangeDistancenaClass 2

Software Architecture

LED Selection WES ND (Digikey) MX6SWT-A G51TR-ND (Digikey) Selection Criteria CP41B-WES/WGSSSC-SAW8WA2A MX-6SWTCree XML-HVW Price $0.262 for 1000$0.412 for 1000$0.806 per 1, for 1000 ColorCool WhiteWhite NeutralCool WhiteWarm White Current30mA40mA60mA44mA milicandela rating5200mcdNot Listed Viewing Angle60 degrees120 degrees 110 degrees Dimensions 7.60mm L x 7.60mm W x 4.40mm H 2.8mm W x 3.5mm L x 0.6mm H 6.5mm L x 5mm W x 1.35mm H 5mm L x 5mm W x 3.02mm H Luminous Flux at Current Test7.43 lm107 lm135 lm160 lm Forward Voltage3.6V32.5V20V46V MountingThrough HoleSurface Mount

Microcontroller Selection ABCD ARM Cortex A8-AM3359 ARM11 ARM1176JZF-S coreAmtel atmega238 Selection Criteria MSP430BeagleBoneRaspberry PiArduino (Atmel) Price $0.34-$1.24$5-$25$35.00~$1.60 Ease of Programming HARDEASY Power Consumption (mA) 3.5V800mA700mA200mA max; # of GPIO 24/3232 or greater2623 Bluetooth Compatibility UART Clock Speeds 16MHz MHz700MHz20Mhz Operating System NONESitara LinuxLinuxArduino Bootloader Storage Flash: 1-56KB; SRAM: KB1GBSD card4-32KB

Notification LED Circuit

High Intensity LED Schematic

PCB Layout

Mobile Application

COST per 500 units  22V Circuit - $3.11  3.3V Circuit – $1.26  Bluetooth Module $30  PCB Board - $12  Miscellaneous components –  Case – $6  Total = $80.27

Results  3.3V Circuit works as designed  22V PCB Redone  Performance testing to be completed  Bluetooth Communication operational  Budget Specification not met

Future Considerations  To Reduce Cost  Design 120V to 12V Circuit  Switch to Different Bluetooth chip  Add Application for IOS Devices  Explore alternative lighting