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Hello Post 8/23
One design strength that I have is definitely my proficiency with designing and building things. I'm pretty good with CAD, tools, and machinery; however, when it comes to 3d cutting or printing, I'm pretty lost. I also tend to have very ambitious goals which might seem out of my skill range. I hope to become better at time management and having realistic goals in this class. 3 things that I want to commit to in the documentation of my learning and projects are proper lighting and a variety of angles, consistent updates, and thoughtful descriptions.
PCB Design 8/31
We chose the turtle for our design. It is a pretty simple outline of a turtle with LEDs along the fins and for the eyes. The coin slot battery goes on the other side of the circuit board. The switch goes near the back. We might trace lines that will make the body look like a turtle shell. We chose it because we thought it looked nice and unique.
PCB Collaborative Project 9/8
My partner for this project was Ruby. We designed a PCB that looks like a sea turtle. This PCB has 8 LEDs, 8 resistors, a coin battery, and a switch. The battery is placed on the back for ease of access. The design for the sea turtle was made in Rhino and then imported into EAGLE. One thing that I will remember from this project is the importance of saving work at each step and the importance of working efficiently, so that if you run into issues, you have time to fix it.
10 Amp Designs
I want to try and proceed with the megaphone because I feel like it would be a really interesting an fun design; however, making the cone part of the design seems like it would be hard to design.
Another interesting design that would be fun to make is the coaster because it would serve 0 practical use. It wouldn't be too hard to make.
Speaker Design Post It Feedback
Detailed Sketch 9/18/23
3d Modeling of Speaker 9/28
For materials, I think that I will use mostly wood and sheet metal. Most of the boxes will be made of wood and the only part that will be made out of sheet metal is the cone. Right now, I am a little worried about how the final product will look and also how the cone will attach to the speaker and the rest of the design. I think that I could drill holes in the sheet metal and fit it in between the holes in the wood and the holes for the speaker, but I'm not quite sure how well that would work.
Cardboard Prototype 10/25
This is my cardboard prototype of a megaphone. I think it came out really nicely, but there was some alignment issues with the top and bottom panel of the bigger box. I also don't really know how I am going to connect the two end of the sheet metal together to make the cone. Maybe I could ask someone to weld it together. Another thing that I worked was creating little tabs on the inside of the cone to allow it to attach to the bigger box. I just need to adjust the length. In Rhino, I need to make some holes for the charging port, a volume control, and other things that I will think of along the way. I also need to figure out a way to add a switch to turn the bottom speaker on and off.
AMP Circuit 10/25
This is an AMP circuit. I have installed the bluetooth module(the little board connected to the audio jack), so now I can connect my speakers to bluetooth. Something that I learned in this process is how to read schematics. I got a lot better at this while connecting the wires. I also felt more comfortable asking my peers for help.
11/1 Python Worksheets
Worksheet #1
https://docs.google.com/document/d/1OeSjjUCLPeOK8ealnBKhojHpD83r2IXI52XXylCgs-8/edit
Worksheet #2
https://docs.google.com/document/d/1suGpfhbLzU-ZjeO9sN3G0pWPk5Rl1Cg69OiltOzhB-M/edit
11/1 AMP PCB Design
I worked with Emma. She started the board, did half the connections, and submitted it. I did half the connections and checked for errors. I didn't really learn anything new this time around, but instead refined what I learned last time. This process was much smoother.
Microcontroller 11/9
My partner was Brandon and we did the scrolling screen challenge. We also did the different picture challenge but don't have a photo of it.
https://gist.github.com/mdyang726/13e5cb09b056e75e418e1c6e772368e9
Feather ESP32-S2 11/9
This is a photo of the Feather ESP32-S2 displaying the when the next 1 California bus arrives. The other photo is the Feather ESP32-S2 showing the temperature outside.
https://gist.github.com/mdyang726/9f7e846c337161a4a8e67954a61fe7e0
Analog and Digital Feather-ESP32_S2.mp4Digital Project 11/26
Unsoldered Vs Soldered PCB 11/30
This is a printed circuit board(PCB and unsoldered) that is made to hold a coin cell battery that powers the various LED slots that are on the board. There are also slots for the resistors and the switch. This works similar to a bread board.
This is the PCB that I designed with Ruby after all the soldering was done. All the LED's light up and the switch works too. The coin cell battery is on the underside of the turtle because we didn't want to face with the LEDs to look cramped.
Soldered AMP and Enclosure Build Process
This is a photo of my completed almost completely soldered AMP circuit board. Later in the build process, I added an external power outlet. There is a bluetooth module and a potentiometer to control the volume.
These are photos of my circuit board as I am attaching it to my enclosure. I had to feed some wires through a panel of the enclosure, so I thought it would be okay to glue the sides on, but I later had to remove them because the slot for the digital project was on the wrong side. The potentiometer, external power outlet, and switch from the battery were fed through the panel and attached to one of the exterior pieces of the enclosure.
This is a photo of the almost completed speaker. All of the pieces are press fit, but I added glue just in case. The inside of the speaker is really compact and some of the enclosure pieces had trouble fitting together because the digital project didn't fit well. The cone turned out better than I expected and is stuck in place. Some of the wires connecting to the outer box are a little short, so I might extend to make the build less problem prone in the future. Other than that, I need to sand it a little bit to get rid of the glue marks, and then it will be done.
Reflection 12/19/23
I made a speaker that looked like a megaphone(kind of). I think I'm either most satisfied with the enclosure or the actual AMP. I think the idea of making a speaker was really cool, and I'm glad that it sounds good. The enclosure is also something that I am proud of given that I redesigned it around 5 times. I printed and assembled all of it in one day. The enclosure has one little flaw that I am going to be annoyed with, but it's okay. I think something that I would do differently is to maybe spend more time in the ideation period of the process because I definitely think that I could have built something more visually interesting(this is still pretty good though) and include acrylic. I would also probably ask for more help earlier in the process because I kind of left all my questions and problems for the last day. I think one lesson that I will take from this class is to measure better the first time and be patient with soldering.
Final Photos 12/20/23
Final Thoughts:
I like how my speaker turned out. Everything fits very nicely and nothing looks that off. I think I spent a total of 24 hours working on it. It turned out basically how I wanted it to(except for the digital project not really working)
The End
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