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Week17 | Applications & implications, and Project development

Overview of this week

This week is about planning the final project properly and thinking about its real applicable value. I answered important questions about what the project does, how it works, what it costs, and how I will test it. I also prepared the final presentation slide and video.

Assignment

for this week assignment is include to two parts. First for applications and implications, I need to answer the following questions that make the way almost shiny to finish my final project.

Plan a final project masterpiece that integrates the range of units covered, answering: What will it do? Who's done what beforehand? What sources will you use? What will you design? What materials and components will be used? Where will come from? How much will they cost? What parts and systems will be made? What processes will be used? What questions need to be answered? How will it be evaluated? Your project should incorporate 2D and 3D design, additive and subtractive fabrication processes, electronics design and production, embedded microcontroller design, interfacing, and programming, system integration and packaging Where possible, you should make rather than buy the parts of your project Projects can be separate or joint, but need to show individual mastery of the skills, and be independently operable

And second for project development is:

Assignment Prepare drafts of your final project summary slide (presentation.png, 1920x1080) and video clip (presentation.mp4, 1080p HTML5, < ~minute, < ~25 MB), put them in your root directory, and check that they are linked in the final presentation schedule

What is masterpiece?

A masterpiece in Fab Academy means a final project that shows you learned and used many different skills: 2D & 3D design, electronics, programming, making parts instead of buying them, and good system integration. The project should work by itself and show your individual effort.

How to document Final project

Plan a final project masterpiece that integrates the range of units covered, answering:

Your project should incorporate 2D and 3D design, additive and subtractive fabrication processes, electronics design and production, embedded microcontroller design, interfacing, and programming, system integration and packaging Where possible, you should make rather than buy the parts of your project Projects can be separate or joint, but need to show individual mastery of the skills, and be independently operable

Answers to the Questions

What will it do?

My device is a Portable Sleep Monitoring System focused on snoring detection. It tracks snoring, body position (using gyroscope + accelerometer), and room temperature & humidity. It sends data to a mobile app so the user can see patterns — for example, whether they snore more when lying on their back or when the room is warm.

Who has done what beforehand?

What sources will you use?

  • Datasheets of XIAO ESP32-S3, ICM20948, DHT22, and I2S MEMS microphone
  • Arduino libraries and examples
  • Previous Fab Academy documentation
  • Research papers about snoring and sleep position correlation

What will you design?

A small, comfortable, and portable enclosure that people can easily carry when traveling. The design focuses on being light and not disturbing sleep.

What materials and components will be used?

  • PLA for 3D printed enclosure
  • Plywood for the laser-cut lid
  • XIAO ESP32-S3, ICM20948, DHT22, MEMS microphone, OLED, LiPo battery + charger
  • Milled PCB

Where will they come from?

Most electronics and materials are available in Oulu Super Fab Lab.

How much will they cost?

Bill of Materials

# Item Qty Est. Unit Cost Total
1 XIAO ESP32-S3 1 €$7.49 €$7.49
2 ICM20948 breakout 1 $14.95 $14.95
3 DHT22 1 $4.8 $4.8
4 I2S MEMS microphone 1 $8.19 $8.19
5 LiPo 600 mAh 1 $10.84 $10.84
6 PCB (milled in lab) 1 $2 $2
7 PLA filament (~50 g) — $2 $2
8 UV laser printer — .. ..
9 Passives, connectors — $2 $2
Total ~$52.28

What parts and systems will be made?

  • 3D printed enclosure
  • Laser cut lid
  • Custom PCB
  • Mobile app interface (simple)

What processes will be used?

  • 3D design in Fusion 360
  • 3D printing (additive)
  • Laser cutting (2D)
  • PCB milling (subtractive)
  • Electronics design in KiCad
  • Embedded programming in Arduino IDE
  • System integration and packaging

What questions need to be answered?

  • How accurately can the MEMS microphone detect snoring?
  • How well does body position affect snoring?
  • Do room temperature and humidity have affect on snoring?
  • What is the best way to make the device comfortable for all-night use?
  • How long does the battery last?

How will it be evaluated?

  • Does it successfully detect snoring and record position + environment data?
  • Is the device small, comfortable, and easy to use?
  • Does the mobile app show clear information?
  • Can I use it for several nights without problems?

Project Development

I prepared the final presentation slide and video as required.

Both files are in the root directory and links are working.

Reflection

This week was very useful because it forced me to think about the final project clearly, not just the technical parts, but also the purpose and real value. Answering all the questions helped me see what is still missing and what I need to finish before the presentation.

I learned that planning the cost, materials, and evaluation from the beginning makes the project much stronger. I also realized my project combines many skills we learned during Fab Academy: 2D and 3D design, electronics (design, production, inputs, outputs, networking and communications, application user interface), embedded programming, 3D printing, laser cutting, and system integration.

The most important lesson was understanding that a good final project is not only about making something that works, but also making something useful, comfortable, and well-documented. Now I feel more confident and ready to complete the last details of my sleep monitoring device.

Files