Seattle, WA

Andrew Gui

ECE @ UW • EE Intern @ PNNL • Builder

I design multi-layer PCBs at Pacific Northwest National Laboratory, founded and lead Fitness Tech at UW, and box with the Husky Boxing Team.

Altium Designer KiCad Oscilloscope SystemVerilog Python Flutter

See What I Build Get In Touch

More about me PNNL hardware, MICRO 2024, Chips2Future in Taipei

I'm Andrew Gui — an Electrical & Computer Engineering undergrad at the University of Washington. At Pacific Northwest National Laboratory I work on hardware: laying out multi-layer PCBs in Altium Designer, building and reworking prototype boards under the microscope, and testing Mini Sensorfish devices that measure fish passage through hydroelectric dams. Before that, I co-authored FPGA accelerator research for LLMs, published at MICRO 2024.

I founded Fitness Tech at UW, where we build wearable hardware and the MyFitnessTech app, and I box with the Husky Boxing Team. I also did the Chips2Future semiconductor program at NYCU in Taipei: TSMC fab tours, device simulation in TCAD Sentaurus, and MOSFET/FinFET coursework. When I'm not building something, I'm training, wakeboarding, skiing, or finding the next thing worth learning.

Experience

Founder & President Fitness Tech @ UW Oct 2025 – Present 25-member engineering club · MyFitnessTech shipped

Founded and lead a 25-member engineering club and mentor its hardware, firmware, and app teams across four projects. Shipped MyFitnessTech to the App Store and Google Play. Wrote a $10K–$15K Student Technology Fee proposal for prototyping equipment, now under committee review.

About the club ↓
Undergrad Technical Intern — EE PNNL Jun 2024 – Present BatTag PCB in Altium · SMD rework · Mini Sensorfish

BatTag — Sub-Gram RF Telemetry PCB

BatTag is a sub-gram RF transmitter for wildlife telemetry, kept that small by federal limits on how much a tag can weigh. I rebuilt its schematic and multi-layer PCB layout from scratch in Altium Designer, matched it to the reference design to check the net topology, then revised the layout from there. I also build and rework the SMD prototype boards: hot-air reflow, component removal, and fine-pitch hand soldering under a stereo microscope, then bench checks for continuity and power rails.

Altium Designer Multi-Layer PCB RF SMD Rework Bench Debug

Mini Sensorfish — Fish Passage Through Dams

Mini Sensorfish are autonomous sensors that travel through hydroelectric dams the way a fish would. I analyze their pressure, rotation, and acceleration data to show what fish go through on the way, for environmental impact assessments. I also calibrate the devices, run acceptance tests, and field-test them before they go out to dam sites.

Python Sensor Data Analysis Calibration Field Testing
Christmas Light Tech

Radiant LLC Nov 2023 – Feb 2024

Custom holiday lighting installations, safety protocols for elevated work, team training.
HPC Intern MICRO 2024 PNNL Jun 2023 – Aug 2023 LLM accelerators on FPGA · LNS vs. floating point

AI Hardware — LLM + LNS Architecture Codesign

Compared Logarithmic Number System and floating-point arithmetic for FPGA-based LLM inference accelerators, and contributed to the dynamic data format and architecture codesign. Co-authored the resulting paper, published at MICRO 2024.

LLMs LNS FPGA Accelerators Architecture Codesign

Publication

Bridging the Gap Between LLMs and LNS with Dynamic Data Format and Architecture Codesign

Haghi P., C. Wu, Z. Azad, Y. Li, A. Gui, Y. Hao, and A. Li, et al.

MICRO 2024 • Austin, TX • Nov 2024

View Publication →
Crew Member

McDonald's Nov 2022 – Jun 2023

I just put the fries in the bag. Sometimes nuggets or even a burger.

Skills & Tools

Hardware Design Altium, KiCad, PCB layout, rework 7

Altium Designer
KiCad
Schematic Capture & ERC / DRC
Multi-Layer PCB Layout
SMD Assembly & Rework
Oscilloscope & DMM Bench Debug
Programmable Oscillator Config

HDL & FPGA SystemVerilog, RTL & FSMs, Quartus 5

SystemVerilog
RTL Design & FSMs
Testbench Simulation
Intel Quartus
DE1-SoC (Cyclone V)

Embedded ESP32, I²C / SPI / UART, BLE 5

ESP32 / Arduino
PlatformIO
I²C / SPI / UART
BLE
Sensor Integration & Calibration

Software Python, Java, MATLAB, Flutter 5

Python / NumPy
Java
MATLAB
Dart / Flutter + Firebase
Git, Fusion 360

Semiconductor TCAD Sentaurus, MOSFETs, FinFETs 4

TCAD Sentaurus
MOSFET / MOSCAP Physics
FinFET Devices
Fab Process Fundamentals

Certifications WNF Fabrication, Microsoft Office 2

WNF Fabrication Workshop 2026
Microsoft Office Specialist 2019

Projects

The Fitness Tech app and the hardware that talks to it — plus a card game built in RTL on an FPGA.

MyFitnessTech home screen showing daily rings for nutrition, calories burned, steps and sleep, with water, steps, food and gym tiles below

A fitness app built with Flutter and Firebase, on iOS and Android. Nutrition, training, steps and sleep roll up into one daily view, alongside social features and a device layer that pairs the club's own hardware straight into the app. Live on the App Store and Google Play.

iOS Android Flutter Firebase BLE

App Store → Google Play →

MyFitnessTech Devices screen with a SipSync bottle connected over Bluetooth, showing sips taken, ounces drank and ounces left

The assembled SipSync base: a 3D-printed cylinder with the load-cell platform on top and an addressable LED strip around the body — Assembled base — load cell under the platform

The SipSync enclosure opened up, showing the perfboard, microcontroller and wiring inside, with the LED strip lit red — Inside — perfboard, XIAO ESP32-C3, LED rail

A water bottle that weighs every sip. A load cell reads the bottle and an IMU catches the tilt, but a sip only counts once the water settles and the weight actually drops — so bumps and set-downs don't register. A XIAO ESP32-C3 streams it over BLE into MyFitnessTech as live hydration: sips, ounces drank, ounces left.

ESP32-C3 BLE KiCad PlatformIO HX711 Load Cell MPU-6050 NeoPixel 3D Printing

~12 h on a 400 mAh LiPo after a firmware power pass
Custom PCB in KiCad, from schematic through layout
TP4056 LiPo charging with boost regulation, plus Schottky isolation against USB VBUS contention
HX711 load-cell front end and MPU-6050 IMU over I²C

A wearable band built on a custom ESP32 PCB. It brings several I²C sensors together, and its embedded firmware samples them and sends the data out over BLE.

ESP32 Custom PCB I²C Sensors Embedded Firmware BLE

A complete card game written in synthesizable SystemVerilog. A state machine handles dealing, hits, stands, and busts. The cards and table are drawn over VGA, sprites and game data live in on-chip memory, and the player controls it through hardware inputs on the board.

SystemVerilog Intel Quartus DE1-SoC (Cyclone V) VGA FSM