Electrical engineering · UConn · Storrs, CT

WILLOW

Ambitions by day. Unfinished projects by night (finished eventually...)

EE Phd Aspirant · two research labs · table with too many projects · wants more to work on

The short version

Who's building this

Halftone portrait of Willow Pichardo Halftone portrait of Willow Pichardo

I'm a UCONN electrical engineering student, working in two research labs and as a Circuits TA. I also have- lets see... 8 projects in progeess...

I love tackling new challenges (maybe a little too many), but the pursuit of learning always keeps me busy. Have something for me or just looking?

Two labs

What I do

Integrated Photonics and Semiconductor Fabrication, a perfect match.

Prof. Wang · integrated photonics

Microrings that resonate

Microring and microdisk resonators for dense wavelength-division multiplexing. I'm implementing Novick's transfer-matrix model in Python. I am now working towards designing systems in ANSYS Lumerical to address AI power dissipation bottlenecks.

in λ₁…λₙ through drop λᵢ high Q
add-drop microring — one channel peeled off by wavelength
Prof. Gokirmak · Semiconductor Fabrication

Measuring films by their color

I built a python program to measure SiO₂ thickness on silicon with an OceanOptics HR2000+. Report in progress.

R λ interference fringes
oxide thickness falls out of the fringe spacing
Selected builds

The work

Gokirmak reminds me to focus on finishing things... I'm sure I'll get there eventually.

Complete

Class AB Amplifier

MJL3281A / MJL1302A outputs · ~77% efficiency near peak

A discrete power amp tweaked slightly from Rod Elliot's P217 with thermal analysis and efficiency plots. Push-pull output stage, biased and measured.

analogaudioltspice
Open project →
In Progress

Printer Fleet Dashboard

18 machines · Live Updates · PrusaLink → Firebase

Full-stack monitoring for a fleet of Bambu and Prusa printers, including a subnet auto-discovery script so new machines announce themselves instead of being added by hand.

pythoncssfirebase
Open project →
Live

circuitspractice.org

public circuits-practice site · in use now

An open educational resource for circuit analysis, with assignment attempt-tracking I rebuilt around Firestore transactions after hunting down two interlocking bugs in the deploy pipeline.

webfirebasepedagogy
Visit site ↗ Open project →
In progress

Flying-Probe PCB Tester

CoreXY frame · AD5933 impedance front end

A bed-of-nails alternative: probes on a CoreXY motion system measuring impedance point-to-point, so a bare board gets tested without machining a custom fixture for it.

motion controlmeasurementpython
Open project →
In progress

Laser-Doped Diode

laser doping of silicon → p-n junction

Driving dopant into silicon with a laser to form a working junction using close to hobbyist equipment. Success criterion: one honest rectifying IV curve.

IV
the goal, drawn optimistically
semiconductorDIY
Open project →
In progress

Maskless Lithography

DMD projection · Elegoo Mars 4 as UV source

Homemade photolithography: a resin printer repurposed as a UV exposure unit already gave a clean first exposure in dry-film resist. Next up, a UV laser photolithography device built from a gutted MakerBot 3D Printer.

photolithographyopticsDIY
Open project →
In the classroom

TA, ECE 2001 — and my passion for teaching

I propose repeatable, intuition building practice sets into shifting the way students learn. I also make videos to guide my students when the patches get rough. All this lives free to the public at circuitspractice.org and YouTube.

Say hello

Let's talk

Research, collaborations, or someone who needs a problem solved.

Working *right now* · Storrs, CT · updated June 2026

Work like you're running out of time.