Author: Arim Baek, Email: baeka3@unlv.nevada.edu
Date Last Modified: 05/12/2025

My time at DASL is really coming to an end! To ease the sadness of saying goodbye, we went to our favorite sushi place, Sakana, to have dinner. After that, we came back to the lab just to chat, joke around, and simply enjoy time together. I can't believe that I have to say goodbye to the lab I practically lived in, and the bunch of lovable troublemakers who made every day in DASL unforgettable. It honestly breaks my heart! Haha.

On the day Tommy presented his senior design project, I had the chance to visit and meet his team members. Although I had seen them around the lab recently and exchanged greetings, this was the first time we were formally introduced. As I listened to their presentation on the taser gun project, I could truly feel how much effort and experimentation they had put into it. I was deeply impressed by their ability to successfully complete such a complex project. As someone who's always admired their passion, I wholeheartedly applaud and congratulate them on their amazing achievement!

I went to a Vans store to buy some shoes and clothes. Several staff members kindly helped me, and when I brought the items to the counter to check out, the cashier asked, “Did anyone help you today?” It was the first time I had ever been asked that, so I replied, “Yes, I got a lot of help, but I'm not sure of her name. She had long, permed hair.” Later, I looked into the reason for that question and learned it's likely related to employee commission. Since I've never been asked anything like that in Korea, I was quite confused at first. But now that I understand the reason, I'll try to remember the name tag of anyone who helps me in the future.

Since coming here, I thought my English had improved a bit, but I was reminded again that I still have a long way to go. While shopping, store employees would often explain or introduce products, but I found it difficult to fully understand everything they were saying. It's something I've felt in the lab as well. Because of my limited vocabulary, there's a clear limit to what I can say and understand, and that often leaves me feeling frustrated. When I return to Korea, I really want to focus on improving my speaking skills. Even if I'm not perfectly fluent, I hope to reach a level where I can freely express my thoughts and ideas without feeling stuck.

- Video: https://youtu.be/YsyI-wgt0Wc?si=8jk9VN_TXLJBNjgE

I measured the motor's feedback waveform and compared it with the input signal to observe how changes in the P, I, and D gains affected the system's behavior. By analyzing the waveforms, I was able to fine-tune the gain values to minimize the error between the input and feedback signals, which allowed for more precise motor position control.