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Ethan

Analog-focused EE with interests in physics, metrology, maximal minimalism, and art. Currently a satellite avionics engineer.

San Francisco, CA, USA

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This user joined on 07/19/2025.

My Projects

My watch runs off "disposable" lithium cells. I retrofit it to run like a grandfather clock: weights and gravity.

Gravity-Powered Digital Clock

Things I've Built

VFD clock

Found a eucalyptus branch in the park. Cut and finished it, left a live edge, and filled it with a an arduino and custom crystal driver with divider. Display is a vintage Soviet IV-18 VFD tube.

2.5kV 1kJ Capacitor Bank

120 photoflash caps to 1kJ, LCR characterization, and sorta-high-speed video of it exploding things. https://youtu.be/gJo2a09OF3Y

Vintage DMM repair

Repaired a air of vintage Keithley 5.5-digit DMMs. Youtube video: https://youtu.be/Mj6_2yCxAAs?si=I0-6O7mVS247oLct

Projects I Like & Follow

Hackaday Prize 2019

Creating a free & open source global IoT network, democratizing access to space by miniaturizing aerospace systems.

FossaSat-1, Open Source Satellite

julian-fernandez Julian Fernandez

he arrival of small satellites that used LoRa for telemetry data has meant that less technically qualified persons, with a very low budget,

Ground station for LoRa satellites

alberto-nunez alberto nunez

v1 USB keyboard approximately the size of three pennies in a line; v2 around the size of a quarter

The Smallest Keyboard

The 2018 Hackaday Prize

Musical Project that converts low frequency waves from the magnetosphere into sound.

Natural Radio Music

Creating a custom front panel for the assembled Eurorack module.

Mutable Instruments Clouds PCB Panel

richard-hogben Richard Hogben

My entry to the circuit sculpture contest - A digital Clock which pulls its time from the Global Positioning System

GPS Clock

matthew-james-bellafaire Matthew James Bellafaire

A simple circuit that can work as a crystal radio (no power needed) or as a regenerative receiver for the FM broadcast band

When a crystal radio meets a regen receiver

andrea-console Andrea Console

The 2018 Hackaday Prize

TouchYou, is a pair of wearable interfaces that enables affective touch interactions with people at long distance.

TouchYou: a wearable touch sensor and stimulator

leonardo-gomes Leonardo Gomes

The 2020 HDP Dream Teams are participating in a two month engineering sprint to address their nonprofit partner. Follow their journey here.

2020 HDP Dream Team: UCPLA

supplyframe-designlab Supplyframe DesignLab

Easily extendable data logging platform with STM32F103RBTx, WiFi, microSD storage, LCD with four buttons, UART, and pulse counters.

Hardware Data Logger

robert-gawron Robert Gawron

Hackaday Prize 2019

A modular board hosting 9 seven-segment displays that can be daisy chained to make an art installation

A Seven Segment Art Installation

arduino-enigma Arduino Enigma

A relay clock at the size of a book

Relay clock

Hackaday Prize 2019

Worlds first intelligent fever thermometer that can classify if you caught a cold or a have life-threatening flu

iF°EVE

m-bindhammer M. Bindhammer

Core16 makes it easier to get started weaving your own Interactive Core Memory. You can do a lot of fun stuff with it after it is assembled!

Core16: Interactive Core Memory Made Smaller

andy-geppert Andy Geppert

a homebrew FPGA CPU with a native Pascal compiler and a simple development environment

Tridora-CPU

An energy-harvesting, environmental tracker that provides a long-term, sustainable solution for collecting, interpreting, and analyzing data

EnviroSense

trey-labak Trey Labak

An API for medical ultrasound usb probes

pyusbus: a python lib for ultrasound usb probes

kelu124 kelu124

UTC Aligned PPS from a 555

GPS Disciplined 555 Timer

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