Maker Portfolio

Time: Oct 2024 - Dec 2024

Location: Personal Workshop

I wanted to be able to warm up my car automatically based on a set schedule. My car has a sequence of buttons to press to start the car remotely. The idea is to use 9-gram servo motors to press those buttons when the key fob is stored in the device. I used an Arduino ESP32 and Arduino Cloud to set the schedule to trigger at 5:50am on the weekdays.

Time: Dec 2022 - May 2024

Location: Personal Workshop

A remote-controlled platform has several applications like mowing lawns, plowing snow, and hauling equipment. This robotic platform uses four hoverboard brushless DC motors, a 36-volt lithium-ion battery, an Arduino Mega, motor drivers, and an aluminum chassis. The controller is a two joystick drone transmitter and the receiver communicates through Pulse Position Modulation (PPM). The signal is read by the microcontroller and sends a Pulse Width Modulation (PWM) signal to the motor drivers that control the speed and direction of each hoverboard wheel. This project has the potential to send a robot into dangerous environments in the place of humans.

Time: Sep 2023 - Apr 2024

Location: South Dakota School of Mines and Technology

The Cryo-Brace project aims to aid in the post-surgery recovery process reducing inflammation and pain. The Cryo-Brace pumps cool liquid continuously through a bladder, like an ice pack. The features of the device are temperature control, self-contained refrigeration, quick disconnect, and a timer. The electrical portion of the project is to design a PCB to interface and control the sensors and actuators like the vapor compressor, temperature sensors, the (Human to Machine Interface) HMI display, buttons, rotary encoders, and water pump. The result was a working prototype delivered to the sponsor.

Time: Mar - Apr 2024

Location: South Dakota School of Mines and Technology

A Yagi-Uda is a highly-directive antenna usually used in the UHF electromagnetic spectrum. This one was built to receive a local television station. The design uses six elements in parallel to achieve a gain of 12.5 dBi. The final build resulted in a VSWR of 1.06 at center frequency.

Time: Jan - Apr 2024

Location: South Dakota School of Mines and Technology

In my Feedback Controls course during senior year, our team designed a hand-following robot using a LIDAR sensor and a DC motor on a track. The goal was to use Proportional-Integral-Derative (PID) control to improve the system's dynamics. The system's transfer function is measured by collecting data points to a step input. Then, we modeled the system in MatLab and simulated the step response with a PID controller. The PID control was implemented on an Arduino Due. The result was a fast response time, a small overshoot, and no steady-state error.

Time: Aug 2023

Location: Texas Gigafactory

At Tesla, I was assigned to the Manufacturing Equipment Engineering Team for the Model Y. I was working with Automatic Guided Vehicles (AGVs) reducing Unplanned Downtime (UPDT), responding to breakdowns, and improving Cycle Time. The Arc Suppressor project is identified from the UPDT Pareto Chart due to relay failures. The root cause was carbon build up on the relay contacts due to high voltage sparking. The solution is to add a component called MGXDC1F250 in parallel to the relay's coil. This ultimately reduced the UPDT and improved the Cycle Time.

Time: Jan - Apr 2023

Location: South Dakota School of Mines and Technology

A superheterodyne radio is an Amplitude Modulation (AM) radio that mixes with intermediate frequency to filter out the signal from the carrier. This project involves calculations, PCBA, test equipment, and troubleshooting skills. The radio is a kit called NorCal 40b that transmits at 7.0-7.15MHz, the instruction manual is provided down below for reference. This project was a semester long and our radio worked at the end!

Time: Apr 2023

Location: Aurora, Colorado

I was a member of the IEEE club at the South Dakota School of Mines and later became the president during my senior year. There is a yearly circuits competition held by the Region 5 of IEEE. The competition I competed in was to create a traffic light timer system with analog circuits. 555 timers with Resistor and Capacitor (RC) circuits were used to keep track of time. Red, yellow, and green LEDs were used to simulate the traffic lights. The 555 timers were cascaded so one turning off would turn on the next one in sequence. The goal was to run the traffic light in a loop automatically.

Time: 2020

Location: Personal Workshop

Inspired by Iron Man in Avengers Endgame. I have recreated the EDITH glasses prop with functionality.

Time: 2018

Location: Personal Workshop

One of my first electrical engineering projects. I built an electric bike when I was in high school. The electric bike has a 48-volt battery, a three-phase hub motor, and a DC to three-phase inverter. The top speed it ever acheive was a little over 40mph.