The Technical and Less Technical
Running QUCS Studio (uSimmics) on a Mac
May 31, 2025
~603 words
RF circuit simulation without ANY piracy!
Bringing up a custom RP2040 board
May 21, 2025
~1298 words
First time lessons are easily forgotten, here mine are persisted
Free custom email domain through Gmail
May 16, 2025
~370 words
1 CRAZY trick that Big Custom Mailbox doesn't want you to know
Electronics Teardown: Stelo CGM
October 6, 2024
~990 words
Power testing a consumer continuous glucose monitor
MonoChrome: In Defense Of Using One Chrome Window At A Time
June 12, 2024
~378 words
Browser meta-war
How To Set ATtiny Fuses (with Arduino as ISP)
April 23, 2024
~559 words
Change clocks, reduce startup delay, and more!
A Layman's Guide To The ICNIRP Guidelines On Limiting Exposure To Electromagnetic Fields (100kHz-300GHz)
April 16, 2024
~1034 words
I read this and it was actually interesting
Most-scanned bulletin boards at CMU
April 15, 2024
~381 words
Finally publicizing some sneaky data collection from 4 years ago
Is Morse Code Letter-Frequency Optimal?
April 12, 2024
~612 words
Most common letters vs. Morse code length
Power profiling a thermal printer camera
April 7, 2024
~533 words
Exposing the internals of a dinosaur-shaped children's camera I got in Shenzhen
Timezone correcting Fitbit sleep data using Google Timeline
February 12, 2024
~402 words
My last post on dealing with terrible Fitbit data
A computer scientist's guide to I2C
February 5, 2024
~944 words
Illustrated via minimal example of ATtiny85 to DS3231 communication using TinyWireM
Programming an ATtiny85V using an Arduino
February 2, 2024
~930 words
Blink & SoftwareSerial & ADC, oh my!
My Quantified-Self Data Stack
January 26, 2024
~939 words
Many cool self-insights and the data logging methods used
How sleep deprivation affects my cognition
January 10, 2024
~489 words
Correlating my Stroop with sleep data
Reading speed comparison on paper vs screens
January 9, 2024
~627 words
Also reflections on the Percy Jackson series
Shipping from Europe to America from $2.30/kg
January 1, 2024
~1140 words
How to game cross-continental travel
Shot comparisons between an iPhone and digital camera
December 23, 2023
~503 words
Sensor size matters!
Teardown of the Freestyle Libre 2 Continuous Glucose Monitor
December 18, 2023
~792 words
Pictures and wild speculation
Timezone correcting Fitbit sleep data
November 30, 2023
~919 words
How to get your sleep data in UTC so you can actually do anything with it
Average clip duration in MILF Manor
June 11, 2023
~366 words
Gauging the audience attention span from TLC dating shows
iCloud Cleanup
June 6, 2023
~836 words
Script for highlighting large videos in iCloud and a storage discrepancy
Infoglobe Tutorial Pt. 2 — Hardware Integration
October 15, 2022
~2067 words
Letting go of externalized electronics
Making clear gelatin from porcine sheets
October 4, 2022
~977 words
From Jello you came, and to Jello you shall return
Infoglobe Tutorial Pt 1 — Hardware Prototyping
October 1, 2022
~1359 words
Hacking a new brain into the Infoglobe
Supercapacitor To Lithium Battery Converter
February 14, 2022
~651 words
To enable powering all lithium battery devices with chunky supercaps instead
Learning AppleScript
January 5, 2022
~1971 words
Several examples of AppleScripts for Spotify, current app, etc.
Examples from the Taxonomy of Automation
January 3, 2022
~950 words
Summary and thoughts on the convenience of interfaces
Measuring 150 Amps With A DIY Shunt
September 6, 2021
~1280 words
Speccing a 150A@5V power supply, the NJE MK750
Sugar-Metering My First Watermelon
July 27, 2021
~481 words
Tastes like Capri-sun! Bonus: Lychee and Longan
How to get access to your Fitbit data (API tutorial)
July 26, 2021
~406 words
Navigating a slightly complicated process for API noobs
Comparing The Sugar Percentage Of Peach Juice vs. Sugary Drinks
July 23, 2021
~895 words
Testing out a sweet scientific instrument
Paper Delivery: Sinusoidal Skin Displacements
June 22, 2021
~883 words
Retro papers you probably missed, but shouldn't have!
Finding My Pacinian Corpuscles in vivo
June 16, 2021
~827 words
If only Galen had had a vibrating motor
Stimulating the Merkel Discs: selective nerve stimulation with a TENS unit
May 23, 2021
~509 words
The Firm Handshake-inator 3000
Body Channel Communication Tutorial Pt. 3
May 15, 2021
~1063 words
Reinventing the radio and using touch as the antenna
Body Channel Communication Tutorial Pt. 1
April 17, 2021
~1247 words
Harnessing the body's conductivity as a signal path
MPR121 Touch Sensing Across Barriers
March 13, 2021
~315 words
Testing capacitive coupling across various barriers
5050 LED Strip Teardown
February 20, 2021
~579 words
Repurposing an LED light strip controller and power supply
Blink Detection Using Infrared Reflective Sensors
February 12, 2021
~424 words
Experiments in focus tracking.
Calculating the expected value of the PA scratch offs
February 4, 2021
~613 words
It's ok, all proceeds pay for the benefits of older residents of Pennsylvania
Detecting instantaneous frequency is hard
January 31, 2021
~403 words
Major blockades to fast, effective BCI
Oversampling vs. Averaging for Noise Reduction
January 24, 2021
~846 words
Spoiler: always oversample.
Comparing the interface speed of a thermostat to a keyboard
January 21, 2021
~4084 words
Calculating the human-computer bandwidth of common and uncommon input devices using information transfer rate
Trying out various peak detection techniques for the SSVEP
January 18, 2021
~1340 words
Garbage in, garbage out.
EEG fails in the prescence of household EMI
January 17, 2021
~823 words
I am beginning to have doubts on the feasibility of everday BCIs...
The first generation of handheld barcode scanners had laser tubes
January 14, 2021
~755 words
History of the LS1000 and MH290, and a demo of the 2nd!
My new favorite EEG technique: Phase-rectified signal averaging
January 13, 2021
~277 words
Basic method of aligning waves helps when averaging out noise from long time-series
Preliminary 5W LED Tests
January 6, 2021
~494 words
Projecting 5W of light onto a wall — DIY Projector
Hello World for Brain-Computer Interfaces
December 31, 2020
~620 words
Detecting alpha wave activity with EEG to predict whether my eyes are open or closed
Working with BrainFlow pt. 1
December 30, 2020
~667 words
A new way to stream OpenBCI data to Python
Testing out some high power LEDs
December 28, 2020
~271 words
Casting light on far away surfaces using 3W LEDs
Easy Button Hack Pt. 1
December 24, 2020
~261 words
Learning about SD cards, transistor audio amps, Arduino sleep and interrupts
Improving noisy EEG data through single channel averaging
December 18, 2020
~1183 words
How to get rid of Gaussian noise using a single electrode's measurements
Playing sounds with an Arduino, speaker, and no amplifier
December 13, 2020
~927 words
LM386 audio amplifier? I 'ardly know her!
Analog Electronics Basics: Scaling Voltage Rails
December 8, 2020
~1103 words
What to do when your circuit outputs -5V to +5V but your ADC only takes 0-5V
Remote Photoplethysmography (PPG) Tutorial
December 7, 2020
~538 words
A guide on how to pronounce the word, and how to implement it in Python
Sledding on a table
December 1, 2020
~119 words
We had no sled, but we did have an extra folding table
Myo3 Noise Specs
November 29, 2020
~422 words
1.24µV of noise at 500,000x gain on a DIY electromyography sensor
Why are Javascript libraries so annoying
November 28, 2020
~564 words
What do you mean everything is a global???
Teensy DAQ: ADC Oversampling on the Teensy 4.0 microcontroller
November 27, 2020
~536 words
300 kSPS to 1 kSPS faster than you can say "free bits"
Myo3 EMG sensor initial tests
November 26, 2020
~523 words
It's like they always say, the hard part's the software
Speed Check — Generating a list of a range of a len
November 25, 2020
~639 words
Why does matplotlib set_data not take an iterable :(
Putting together Myo3, the 3rd iteration of my EMG sensor
November 22, 2020
~557 words
My third PCB!
Histogram Equalization
November 20, 2020
~397 words
Using all your dynamic range to make black and white images look sick!
Creating panorama images manually, pt 2!
November 18, 2020
~134 words
Better stitching by doing something really easy I just forgot to consider
Playstation Eye does not work for MacOS!
November 15, 2020
~256 words
Mac doesn't play nice with weird USB webcams :(
Spudging PCB Stencils for Beginners
September 14, 2020
~387 words
How to lay out 50 components on a board really fast
Speed checking Python built-in functions
May 25, 2020
~159 words
Calling str, type, etc. is free... right?
Variable resistance tests of Velostat/Linqstat
May 17, 2020
~591 words
Testing the effects of bending, twisting, and touch on the conductive plastic Velostat.
Parts arrived for Altered Perceptions
November 13, 2019
~403 words
How would you like to see the world from a new pair of eyes?
Spin Tank Proof-of-Concept Test
August 20, 2019
~641 words
A new configuration for some old kinds of armor
Advanced addition and speedup of neural network evaluation
August 1, 2019
~467 words
Linear functions and what it means for Neural Network acceleration
Simple arithmetic addition with neural networks
July 17, 2019
~897 words
I have stumbled across a new way to add numbers.
The exploration of unexplorable search spaces
June 30, 2019
~694 words
Any hard problem can be solved by randomly guessing — if you're good enough at guessing.