Midterm Presentation Music Alarm Clock

Team Members Will Kalish Electrical Engineering Removable Media Device User Interface Eric Womack Electrical Engineering MCU Setup MCU Programming Craig Bilberry Team Leader Electrical Engineering Layout and Design Atomic Clock Signal Erik LaVine Electrical Engineering Layout and Design Audio Decoder

Overview Introduction Introduction  Problem  Solution Constraints Constraints  Technical  Practical Design Approach Design Approach Progress Progress References References Questions Questions

Problem Restricted option of alarm clock waking mechanism  Beeping  Buzzing  Radio Limited customizable options for people without digital media players Conventional clocks develop inaccuracies over long periods of time

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

Constraints

Technical Constraints Name Description Audio QualityMusic 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 CapacityThe 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 Sustainability - Durability Sustainability - Durability  The Music Alarm Clock must be able to withstand mistreatment by the user. Social - Compatibility Social - Compatibility  The removable storage device must be compatible with current operating systems and hardware in PCs.

Design

System Diagram Micro- Controller Audio Decoder Media Drive Atomic Signal Receiver Display

Microcontroller

Microcontroller Previous Experience Bootloader Software Code Libraries Price PIC 18 4 Members ComplicatedSmall$2.47 PIC 24 1 Member User Friendly Extensive$3.35 [1]

Atomic Receiver

Atomic Signal Long Wave Analog Signal that Contains Standard Time Code Information Long Wave Analog Signal that Contains Standard Time Code Information Broadcast Stations and Frequency Broadcast Stations and Frequency  60kHz, United States  40kHz, Japan  77.5kHz, Germany Receiver required to utilize the Atomic Signal Receiver required to utilize the Atomic Signal

Atomic Receiver Options Options Low Power Consumption Cost Bit Strength Detection Multiple Frequency CMMR-8PYES$20YESYES EM2SYES$74NONO CMMR-8P [2] EM2S [3]

Removable Media Controller

Removable Media Cost(2GB)AdvantagesDisadvantages USB Flash Drive $10.84 High Availability Module Available SD Card $8.84Inexpensive Module Available Memory Stick Pro Duo Pro Duo$18.89Expensive No Module [4][5][6]

USB Host Controllers PackageInterfaceIntegration USB Certified Maxim MAX3421E 32-pin TQFP SPIComplicatedYes FTDIVDIP1 24-pin DIP UARTSPIFIFOSimpleNo MAX3421E [7] VDIP1 [8]

Audio Decoder

File Types On board DAC Easy to use License Include Price VS1011E-L mp1, mp2, mp3, wav YesYesYes$19.95 VS1053B-L mp1, mp2, mp3, wav, wma, ogg, YesNoYes$20.15 STA013mp3NoNoUnknown$12.00 VS1011E-L [9] VS1053B-L [10] STA013 [11] Audio Decoders

Progress

PIC24 PIC24

CMMR-8P CMMR-8P PIC24 Breakout Board Antenna

VDIP1 VDIP1 USB Flash Drive

Timeline JanFebMarAprilMay Research→→→→→→→→ Atomic Signal Prototype →→→→ MP3 Decoder Prototype→→→→ Removable Media Prototype →→→→ Programming→→→→→→→→ Testing→→→→→→→→

References [1] “Photo of PIC24,” February 11, [Online.] Available: [2] “Specification for CMMR-8P RC Module,” February 11, [Online.] Available: time.com/downloads/index.php. [3] “Photo of EM2S,” February 23, [Online.] Available: clocks.htm#studentfree [4] “Photo of USB drive,” February 10, [Online.] Available: [5] “Photo of SD card,” February 10, [Online.] Available: [6] “Photo of Memory Stick Pro,” February 10, [Online.] Available: [7] “Photo of MAX3421E,” February 22, [Online.] Available: [8] Future Technology Devices International, Ltd., “Vinculum VNC1L Prototyping Module,” VDIP1 datasheet, [9] “Breakout Board for VS1011E-L MP3,” February 11, [Online.] Available: [10] “VS1053B-L Features,” February 20, [Online.] Available: [11] “STA013 Datasheet,” February 20, [Online.] Available:

Questions?