Final PresentationFinal Presentation

Music Alarm ClockMusic Alarm Clock

Team MembersTeam Members

Will KalishElectrical Engineering

•Removable Media Device•Audio Decoder

Eric WomackElectrical Engineering

•MCU Setup•User Interface

Craig BilberryTeam Leader

Electrical Engineering•Layout and Design•Atomic Clock Signal

Erik LaVineElectrical Engineering•Layout and Design

•Audio Decoder

OverviewOverview• IntroductionIntroduction

ProblemProblem SolutionSolution

• ConstraintsConstraints TechnicalTechnical PracticalPractical

• GoalsGoals• Changes/RefinementsChanges/Refinements• PCBPCB• Test PlanTest Plan• Bill of MaterialsBill of Materials• PackagingPackaging• Overall System TestOverall System Test• QuestionsQuestions

Problem

• Limited customizable options for people without digital media players Beeping Buzzing Radio

• Conventional clocks develop inaccuracies over long periods of time

SolutionSolution

A device that combines the functionality of an atomic clock, an alarm clock, and a portable media docking station without the need for a portable media player.

ConstraintsConstraints

Technical ConstraintsTechnical ConstraintsName Description

Audio Quality Music must be played at a sample rate of 44.1 kHz

Audio Compatibility The Music Alarm Clock must be able to play audio files that are widely used in order to be compatible with users existing audio libraries.

Storage Capacity The storage device must be able to store 30 minutes worth of audio files.

Time Accuracy The clock must be able to keep time accurately using the atomic signal.

Display Characteristics The display must be readable in all lighting conditions from across the room.

Practical Constraints Practical Constraints

• Sustainability - Durability Sustainability - Durability The Music Alarm Clock must be able to The Music Alarm Clock must be able to

withstand mistreatment by the user.withstand mistreatment by the user.

• Social - CompatibilitySocial - Compatibility The removable storage device must be The removable storage device must be

compatible with current operating systems compatible with current operating systems and hardware in PCs. and hardware in PCs.

GoalsGoals

Design I Goals Design I Goals

Technical Constraint Constraint Met

Audio Quality YES

Audio Compatibility YESStorage Capacity YES

Time Accuracy YES

Display Characteristics

YES

Senior Design II Goals Senior Design II Goals

Design PCB for Fabrication

Backup Battery System

Audio Amplifier

Design and Construct Enclosure

System DiagramSystem Diagram

Micro-Controller

Audio Decoder

Media Drive

Atomic Signal

Receiver

Display

PCB DesignPCB Design

Main PCB Layout Design

Main PCB

Display PCB Layout Design

Display PCB

Test PlanTest Plan

TestingTesting

•SubsystemsAtomic Receiver

Receiving and decoding accurate signalMaintain to keep time accurate

Backup Battery SystemSimulateTestDisplay Brightness

USB/MP3Read mp3 fileDecode mp3 dataAudio Amplifier

Atomic Receiver Test

Serial Data Transfer Test

Serial Data Transfer Results

Backup Battery SchematicBackup Battery Schematic

Backup Battery SimulationBackup Battery Simulation

Backup Battery Test DataBackup Battery Test Data

  Battery Current

Plug Current

Plug Out

600mA 0

Plug In

0 610mA

Display Brightness Test

USB/MP3 TestUSB/MP3 Test

USB/MP3 TestUSB/MP3 Test

Audio Amplifier TestAudio Amplifier Test

Audio Amplifier ResultAudio Amplifier Result

Bill of MaterialsBill of MaterialsDescription Part Number Prototype Cost

Production Cost (per unit) 1000 Units

fuse holder F043TB-ND 1.24 0.38

clock chip DS1337 2.41 1.07

headers for breakout boards 4-103741-0 1.86 0.93

capacitor (22 pF) BC1034CT-ND 0.15 0.08

capacitor (1 uF) 399-3622-ND 0.66 0.22

capacitor (100 uF) P12924-ND 0.80 0.23

capacitor (10 uF) T350E106K016AT 5.53 1.19

capacitor (47 uF) P12923-ND 0.48 0.14

7 segment displays LDS-CA14RI 12.32 3.44

connector (4 pin) 50-57-9004 1.48 0.27

connector (5 pin) 50-57-9005 1.54 0.31

connector (8pin) er50-57-9008 0.93 0.24

LED (red) 516-1335-ND 2.10 0.49

LED (green) 751-1105-ND 0.44 0.09

Bill of MaterialsBill of MaterialsDescription Part Number Prototype Cost

Production Cost (per unit) 1000 Units

resistor (2.2 k) 2.2KH-ND 0.23 0.05

resistor (1 k) 1.0KH-ND 0.12 0.03

resistor (1 k surface mount) 541-1.0KACT-ND 0.39 0.08

regulator (3.3 V) LM2937ET-3.3/NOPB 1.98 0.58

regulator (5V) L4940V5 3.96 1.28

diode (schottky 15A/35V) MBRB1535CTDICT 2.18 1.13

display driver MAX6959 4.83 3.95

PIC24 (64 pin breakout) 19.95 15.96

Atomic Reciever Module 561-1015-ND 16.10 2.95

USB Host Controller 768-1001-ND 24.50 7.50

MP3 Decoder BOB-08819 19.95 5.96

7.3728 MHz Crystal 631-1098-ND 0.53 0.17

32.768 KHz Crystal 300-8301-ND 1.98 0.11

Audio Amplifier 568-3476-5-ND 2.46 1.29

Battery Holder 1249K-ND 1.87 0.86

Totals: 132.97 50.98

PackagingPackaging

Top

Back

Front

PackagingPackaging

Left Side Right Side

Overall System Test Overall System Test

Questions?Questions?