Allison Cohn

Hello Post!

Design/engineering strength:

I love learning new things and I enjoy working through problems.

Design/engineering area for growth:

I'm pretty stubborn with ideas. I struggle to let go of a vision even if it would be unnecessarily difficult to execute well. So, this semester I want to practice being more open-minded.

At least three things I want to commit to in the documentation of my learning and projects:

1. Taking lots of photos so I have many options to choose from.
2. Detailed recording of the steps I have taken, so that if I revisit this blog, I can remember exactly what I did.
3. Making sure that my documentation is clear and well organized so the information can be understood easily.

PCB Ideas:

My favorite designs are the fish and the car. For the fish, I want to use the LEDs to make it look like a bioluminescent fish.

PCB in Eagle:

Group members: Allison, Mateus

We made a PCB that resembles a bioluminescent fish.

One thing that I will remember about the process of making the PCB is how difficult it is to use Eagle. This project gave me an opportunity to improve my troubleshooting and problem-solving skills.

Rhino File

Schematic

Board Layout

Speaker Ideation:

Design Feedback

The main takeaway I got from my feedback is that it might be a little difficult to do the curves in my designs. Because I really want to do them, I will probably make the rest of my design simpler so I can focus on the curves.

Design Documentation - Detailed Drawing

Small Group Feedback

look for acrylic, and make sure I have what I need
maybe add a handle - portable?

Modeled Enclosure Design

I am making a box with two flowers on the front. All the sides are closed, and I am using small holes to let the sound out of the front of the enclosure. I am assembling it using press-fit. My design will require a lot of materials to make, so I hope I will be able to get everything I need. I still need to laser-cut it to make sure that the dimensions work.

Speaker Prototype

Breadboarded Circuit:

Collaborative PCB:

I routed all the parts of the circuit in the schematic. Then I autorouted the traces.

Python Worksheet 1: https://docs.google.com/document/d/1kWoGFzT_toihZ7oW6w_2aH1B8qgbgJRB3SsJZptLR4w/edit

Python Worksheet 2: https://docs.google.com/document/d/11SZ9d27s9wiYaIM0Qx4v3KZQktu0xcpf2sD0L5LtD4M/edit

Microcontroller Documentation:

I did challenge 3 for the feather: create a second counter. I also made the numbers change colors.

Digital Project Description:

For my digital project, I want to have the weather, and an image (maybe animated) displayed on the screen.

Actually, I think I am going to display and an images that changes based off of time/weather/season.

Figure out seldupe (get rid of extra curves on flower center)

Lit PCB Project Documentation:

Amp PCB Documentation:

Soldered AMP PCB

AMP Build WIP

I still have to cut and assemble the acrylic for the flowers on the front. I also have to finish my digital project.

AMP Project Documentation

I made an acrylic and wood speaker with a flower design on the front. I am really satisfied with the parts that I was able to finish. I am really happy with how the acrylic and wood parts came out. If I could start over, I would do less for the digital project. In the end, I didn't have time to achieve what I planned and I wasn't able to figure out a way to mount my digital project. For future projects, I will make sure to be realistic about my goals.

Digital Project Documentation

Link to Code: https://gist.github.com/allisonxcohn/01f5946c154dd9a0b7c9b1daa66ef625#file-a-d-digital-project-code

My goal was to make a digital clock with an image that changes depending on the time. I was able to make the parts separately, but I wasn't able to make them appear on the display simultaneously.

This was the part of the project that I bit off more than I could chew. I also wasn't able to figure out how to mount it to my speaker.

IMG_8536.MOV

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