Week16-Applications and Implications

Task: Applications and Implications Propose a final project masterpiece that integrates the range of units covered.

Your project should incorporate:

2D and 3D design Additive and subtractive fabrication processes Electronics design and production Embedded microcontroller interfacing and programming System integration and packaging. Where possible, you should make rather than buy the parts of your project.

Checklist

• What will it do?
• Who has done what beforehand?
• What will you design?
• What materials and components will be used?
• Where will they 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?

What will it do?

Because of my job, my girlfriend and I don’t often get to see each other. So, I’d like to create a small device that can help strengthen our relationship. Here are the current features:

1. Display the current date in real time on the screen.
2. Show an animated sun on the screen, since sunlight can brighten one’s mood.
3. When I tap the screen to show I miss her, her device will display a capybara, as that’s her favorite animal. If she taps her screen, my device will also show a capybara.

Who has done what beforehand?

I haven’t found anyone who seems to have done a project like this while browsing. My inspiration came from a TikTok video, which featured a bracelet that vibrates when tapped, but it requires a constant Bluetooth connection. I think that’s unreliable. For the design, I took some inspiration from a project by Peng Zhi Hui, which is a transparent little TV that can be found on GitHub. I really like it! However, my colleagues say that what I made looks more like a camera, haha, oh well!

What will you design?

I will design everything except for the electronic components.

What materials and components will be used?

Electronic components:

1. XIAO ESP3S3
2. XIAO round display
3. Lithium battery charge and discharge module
4. Switch
5. Type-C connector

Housing components:

1. PETG filament
2. Colored cardstock

Others:

1. Glue

Where will they come from?

All parts are sourced from local e-commerce, Taobao.

How much will they cost?

What parts and systems will be made?

1. Casing: A screen stand with an angle and a curved base, with silicone on the bottom to prevent easy movement on the desktop.

2. Programming: The two parts can link to each other and send messages. One part has a touch screen that displays animations and time.

What processes will be used?

For the casing, I want to use 3D printing and laser-cut cardstock for decoration. For the internal circuit part, I will cut a piece of PCB to place the ESP32 and the charging and discharging module together.

What questions need to be answered?

I need to learn how to display GIFs on the screen and how to code so that when I tap the screen, the other person’s screen shows an image.

How will it be evaluated?

When I tap the screen, the other person’s screen will show an image of a capybara. Similarly, when they tap their screen, my screen must also display an image of a capybara.Add these features to make my girlfriend happy.