Tabitha Paik

Hello!

My name is Tabitha and this is my blog for Analog and Digital 2022.

A design/engineering strength I have is my soldering ability. I remember doing well when I soldered my circuit board for my freshman lamp and I had fun doing it.

An area for growth in design/engineering I have is coding and remembering how to build circuits. It has been a long time since I took Design and Tech and I did the circuits section online.

The three things I want to commit to in the documentation are providing clear and well-cropped images, showing progress with photos from all steps of the process, and writing detailed descriptions of what is happening in the image.

PCB Ideation Sketch

This is our sheep PCB design! Tessa and I came up with the idea when we were working on the practice PCB design and decided to stick with it. We are planning on adding LEDs to make a colorful necklace of sorts. The sheep is still yet to be named...

Digital PCB Design

Below are Tessa and I's completed schematic and board design for our sheep! In the process, I learned many things. Some of these include how to use Eagle, how to draw and read schematics, and the importance of a parallel schematic in terms of energy distribution. I also relearned how to design in Rhino, which was a skill I hadn't needed to utilize since freshman year for my lamp.

10 Amplifier Ideations Sketches

Phase 2 Drawing

I chose this design because I wanted to be able to look at the electronics, but I didn't want them as apart of the design. With the fridge idea, the door can be opened to see the electronics but it doesn't interfere visually. There will be 2-3 hinges on the inside so the door can open and a digital screen from another project that will be programed to project a thermometer. The handle will be 3D printed and the rest of the speaker will be made out of wood.

Modeled Enclosure Design - the Fridge

Cardboard Prototype

This is my cardboard prototype of my fridge, minus the handle. While prototyping, I learned how to laser print and how to remove and resize holes on rhino. The front face of the design had to be altered and was printed a few times before it was perfect. I am not planning on changing anything after I moved the cutout for the digital screen away from the speaker.

Completed Amp on Breadboard

This is my completed breadboarded amp! It took me about three classes to fully connect it with bluetooth. Some technical things I learned in this process were how to better read schematics and how to use them to physically breadboard something. I think breadboarding is useful because it solidifies that your connections work and it gathers all the materials together. Also, going step by step made it easier and more comprehensive to understand the connections between different parts.

Python Collaborative Challenge

For Max and I's challenge we had to write a program that generates 10 random numbers between 0 and 100. We found a function that randomly generates numbers when given a set.

PCB Design

This is my PCB board design that I worked on with Bruno. The top image is the schematic and the bottom is a digital version of the board with airwires. We removed the switch from the original design because we decided we didn't need it. We added an image of a fish in the bottom left corner and our names in the middle towards the bottom as well.

Microcontroller Activity

While working with Sophie, we made a little red dot move back and forth across the line of lights. A couple of images while the dot is moving back and forth are attached on the left, as well as an image of our code.

Another Microcontroller Activity

I worked with Maya to create this screen to display an image of vitamin water and to cycle between two sets of text: "yellow" and "vitamin water".

Digital Project Plan

For my digital project I am creating a little temperature image for my refrigerator amplifier. It will read 'refrigeration' on the side as well. I drew it vertically because that is how it will fit into my amplifier design. I will use the screen and program the image and text in Mu.

Unsoldered Physical Circuit Board!

Note the fish in the bottom left corner!

Finished Soldered Creative Circuit Board!

This is Tessa and I's sheep circuit board. It has a little light-up necklace.

Soldered Amplifier PCB

Here is my PCB board for my amplifier! There is a little LED so you can tell the battery is hooked up correctly and a wire through the analog audio control because I didn't want to include it in my design. In the top left corner there is the little fish!

Enclosure Build Progress

To finish my enclosure, I only need to glue the piece with the speakers on! I'll connect the speakers to my PCB and glue it together next class.

Final Project!

I made an amplifier modeled after a fridge with a digital screen that says "stay chill" and has a thermometer. I am most satisfied with the fact that the physical enclosure all fits together and that it looks good. If I were to start over, I would add something to the design to make it less than a box (maybe make sure it opened?). Something I learned in this class is to never give up. I had many problems with my PCB (some yet to be resolved) but with work and patience it worked out and I'm proud of the outcome.

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