Lily Wang

~ HELLO POST ~

A design/engineering strength: I always have a backup plan or another approach if things don't work out as planned and I can collaborate well with others.

Area for growth: I want to learn how to read schematics and effectively apply everything I've learned about circuits to my speaker.

Three things I want to commit to in the documentation of my learning and projects:

Make my documentations organized, clear and easy to read
Take and upload quality photos
Be specific and accurate when describing my photos

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PCB Ideation

The design we chose is a map of the US with different time zones marked and major cities with the biggest population represented with LEDs. We chose this because it is a very cool and creative way to visualize, understand and represent a country.

Breadboard Layout

Board layout in Fusion

Siddharth and I worked on a map of the USA for the PCB project. The four switches represented the four different time zones, and the 12 LEDs indicated the cities with the largest populations. We will also use different LED colors to represent the time zones. One thing I'll remember from this project is that you can visualize your board from multiple perspectives.

<-- schematic

Speaker designs

The vintage telephone is one of my favorite because it is interactive and cool. I like the speaker with my chinese name character because it is simple but very aesthetic. I like my plant box because it has multiple uses.

Peer Feedback on Speaker Designs

Something I want to remember is that people thought my vintage interactive telephone which is very affirming. However, their feedback make me reflect on my approach and time management for this speaker.

I believe this is an excellent design because I am trying to be more creative and think outside the box. I am challenging my current skill set by making this design into different components and each part requiring different techniques.

Vintage Telephone 3D Rhino Design

The images below are my vintage telephone designs. This model is not completely finished as I still have to add specific designs like the dial, buttons and something to connect the phone with the body. However, I did make the phone into a realistic shape to 3D print and it looks good.

Vintage Telephone Cardboard Prototype

My idea is to make a creative and interactive vintage telephone speaker where you can pick up the phone and listen to music. I learned that you always have to make adjustments and changes along the way when prototyping. I think my model will definitely need modifications because it is very complex with many components.

Amp Circuit on Breadboard

Reflection Questions:

Is there something about the circuit you understand now that you've spent time prototyping it?

After prototyping my circuit, I understand the importance of connecting the right pieces to different parts. If I am not aware of connections between wires, my battery might explode and it will smell really bad. Negative must connect to negative and positive must connect to positive.

Name one part that is a complete mystery to you. Look it up on Google or Generative AI. What does it say the function of that part is?

A part I didn't understand was the function of 3.3v regulator and capacitors. ChatGPT says they are essential for stable, reliable operation, providing steady voltage levels, reducing noise, and managing power efficiently.

Amplifier PCB Design with Mayen

Something I learned about the circuit during this process is the importance of connection between all the parts; if one wire is connected to the wrong part, the entire circuit would not work. Also, making the wires a bit thicker will make the sound quality better.

Unsoldered Circuit Board

First shaped PCB Project

I worked with Siddharth and our original idea was to create a map of the US with time zones and LED lights representing different cities. I am very happy about the product and it is exactly how I imagined it.

Soldered Amp Circuit

Enclosure Process...

FINAL SPEAKER!

I made an interactive vintage telephone. You can pick up the phone with the speaker (features Cillian) and listen to the music. I am very satisfied with my project because I think it looks exactly like how I envisioned and it looks good holistically. If I had to start over, I wouldn't change anything but I could of managed my time a little bit better considering how complicated my project was. Something I learned that will likely still be with me 2 years from now is to be ambitious about what you want to create but know your skills and know when to say stop as your ambition might become unmanageable. Also, I didn't get to finish a holder for the phone or code my digital project because I ran out of time due to the complexity of my design. If I had more time, I feel like I would go even more ambitious with this project and make the dial rotate and add lights around it.

Lastly, thank you for an amazing semester Mr. Kleindolph!!! This project would not have been possible without you :) Happy Holidays

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