1. ECE477 Midterm Design Review: Team #8

2. Outline Project Overview Major Components Block Diagram
Packaging Design
Electrical Schematic
PCB Layout
Prototyping Progress
Software Development Status
Project Timeline
Questions

3. Project Overview --Antique Music Box
Antique Music Box is a domestic music player with an old-fashioned Vacuum Florescent Tube display
Audio Streaming
SD Card
Smart Device via Bluetooth
Remote Control
Vacuum Tube Display
Equalizer Bar Graph
Track Information
Up-to-date Local Information
In this section provide a concise description of your project. What is it? What will it do? What differentiates it from similar projects and prior art? Include a relevant picture of your project or “artist rendering” of the completed project.

4. PSSCs -Project specific success criteria
An ability to receive and interpret audio file from SD card
An ability to use Valve Tube Amplifier to amplify audio signal
An ability to analyze audio spectrum and display in bar graph
An ability to remotely control the device fulfill its functionality via Bluetooth with Android Smart Device
An ability to obtain additional up-to-date local information
List your team’s PSSCs in this section. This slide is intended to be used for reviewer reference only, and should be passed over during the actual presentation (as there are more important things to be discussed)

5. Major Components -MicrocontrollerYL
-Microcontroller
It works as a processing center, coordinating the function of each external component and module, namely UART, SPI, I2C, ADC.
Operating Voltage: 3.3 VDC
Number of I/O: 100
Operating Speed: 40 MIPS
Expected Current Consumption: 5 mA
Decoupling capacitors: 100 nF
Choose the major (electrical) components being utilized by your design. For each component, provide a brief description of what it is, relevant specifications, and what it will do. Examples of major components include the microcontroller, motors, wireless interfaces, power converters and regulators. Examples of relevant specifications include operating speed (uC), number of I/O (uC), stall current (motors), operating voltage, and expected current consumption

6. Major Components -mp3 cODEC
It is capable of decoding all the most common audio formats, i.e., MP3, ACC, to analog signal.
Number of I/O: 6
Operating Voltage: 1.8 , 3.3 VDC
Clocking Frequency: MHz
High-Quality On-chip stereo DAC
Choose the major (electrical) components being utilized by your design. For each component, provide a brief description of what it is, relevant specifications, and what it will do. Examples of major components include the microcontroller, motors, wireless interfaces, power converters and regulators. Examples of relevant specifications include operating speed (uC), number of I/O (uC), stall current (motors), operating voltage, and expected current consumption

7. Major Components --Bluetooth
RN52 Bluetooth module helps the function of remote control, audio streaming, and instant information update.
Frequency Band: 2.4 – 2.48 GHz
Operating Speed: bps
Operating Voltage: 3.3V
Embedded profiles: A2DP,AVRCP,SPP
MODULE USED: UART PCM(EMBEDDED OVER I2S)

8. Major Components --power converterZX
--power converter
The Power Converter converts the voltage from AC to DC with a desired value.
Nominal Output Voltage: 12V, 5A, 60W
Enough for Power Consumption (40W needed)
Choose the major (electrical) components being utilized by your design. For each component, provide a brief description of what it is, relevant specifications, and what it will do. Examples of major components include the microcontroller, motors, wireless interfaces, power converters and regulators. Examples of relevant specifications include operating speed (uC), number of I/O (uC), stall current (motors), operating voltage, and expected current consumption

9. Major Components --regulator 1
The Voltage Regulator regulates and maintains a constant DC output voltage.
Brand: Murata
Input Voltage: 12V
Output Voltage: 5 VDC and 3.3 VDC
Supply for all digital devices
--regulator 1

10. Major Components --regulator 2
This Voltage Regulator steps up a DC input voltage into a constant DC output voltage.
Brand: Mean Well
Input Voltage: 12 VDC
Output Voltage: 24 VDC
Power: 30W

11. Major Components --regulator 3
This Voltage Regulator steps up a DC input voltage into a constant DC output voltage.
Brand: Nick DeSmith
Input Voltage: 12 VDC
Output Voltage: 250 VDC
Current Consumption: 2.5W, 40% efficiency

12. Major Components --VFD
Vacuum Florescent Tube is capable of displaying characters as programmed.
Anode & Grid Voltage: 25 VDC
Filament Voltage: 2 VDC
Number of Segments: 18

13. Block Diagram
Include one or more images of your system block diagram here. Block diagrams should include all relevant major parts and systems, bus widths, and interface types.

14. Packaging Design Dimensions: 10.2 x 7.8 x 6.7 (inch x inch x inch)KL
Packaging Design
Dimensions: 10.2 x 7.8 x 6.7 (inch x inch x inch)
Materials:
Acrylic glass places on the top
Wood material encloses the four sides
Plastic material places at the base
Power control switches as well as 12 equalizer tubes placed in front
Transformer in small metal box along with 10 Tubes for information display placed on the top surface
Include one or more images of your packaging design here. Include relevant dimensions and how you are planning to manufacture your product packaging.

15. Electrical Schematic

16. PCB Layout
－iv4 tube
Top View
Bottom View

17. Electrical Schematic -amplifier (hifi)
Increase the amplitude of the analog signal
Rectifier
Dual Triode

18. PCB Layout
amplifier－(hifi)
Top View
Bottom View

19. Electrical Schematic
Magic Eye
IV-25

21. Electrical Schematic YL MUX Reset SD Card Socket Microcontroller
Bluetooth Module
Programmer
MP3 Codec

22. Electrical Schematic －mp3 codec
Receive MP3 file from microcontroller and decode into analog signal, output to MUX
Decoupling capacitors to achieve high fidelity

23. Electrical Schematic －sd card Provide music input
Connect with microcontroller via SPI

24. Electrical Schematic －Bluetooth Audio streaming from smart devicesZX
Electrical Schematic
－Bluetooth
Audio streaming from smart devices
Module Used: UART, I2S

25. Electrical Schematic －Microcontroller
Microcontroller is a central unit
Isolated 8 MHz crystal
Decoupling capacitors 0.1uF

26. Pcb layout KL RCA Jack Power Regulator MP3 Codec Micro controller
Communication Ribbon
Power Regulator
MP3 Codec
Micro
controller
Bluetooth Module
Relay
SD Card Socket
Programmer

27. top

28. bottom

29. Software Development Status
-Microcontroller function call
In this section, detail team progress with software development. List out the major modules for your team’s software. For each module, detail its status (Not yet started / In development / In testing / Completed)

30. Prototyping Progress Completed Music audio streaming via Bluetooth
Magic Eye Indicator
VFD display (string, characters)
Commend sent from Microcontroller to Bluetooth
Describe your team’s prototyping progress here. For each of your project’s major components, what has been tested? What is known to work? What still needs to be tested, and what still needs to be proven to work?

31. Software Development Status
-ANDROID APPLICATION function call
In this section, detail team progress with software development. List out the major modules for your team’s software. For each module, detail its status (Not yet started / In development / In testing / Completed)

32. Project Timeline

33. 3D Printing
Questions?