ECE477 Midterm Design Review: Team #8

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

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.

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)

Major Components -Microcontroller YL -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

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: 12-13 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

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: 11520 bps Operating Voltage: 3.3V Embedded profiles: A2DP,AVRCP,SPP MODULE USED: UART PCM(EMBEDDED OVER I2S)

Major Components --power converter ZX --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

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

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

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

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

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.

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.

Electrical Schematic

PCB Layout －iv4 tube Top View Bottom View

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

PCB Layout amplifier－(hifi) Top View Bottom View

Electrical Schematic Magic Eye IV-25

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

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

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

Electrical Schematic －Bluetooth Audio streaming from smart devices ZX Electrical Schematic －Bluetooth Audio streaming from smart devices Module Used: UART, I2S

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

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

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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)

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?

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)

Project Timeline

3D Printing Questions?