last modified: October 23, 2025
Posted on 2016-08-31— Projects
I spent today shaping the Outmoded Sequencer case—switching from planned acrylic to a Dremel-cut wooden shell, sanded and spray-painted deep black. I fitted the knob panel, planned standoffs and PCB placement, and refined the circuit with caps and a line-out. Read on for photos and details.
Posted on 2016-08-23— Projects
I received beautiful violet PCBs for my Outmoded Sequencer project and I’m using them to experiment with different matrix approaches. Ordered from OSH Park to keep costs down, these boards make hands-on testing easier. If you’re interested in the build or my findings, please read the full post.
Posted on 2016-08-19— Fun, Projects
I made a small composition using the outmoded sequencer after my demo video and recorded it straight from the unit into an audio interface. I then layered percussion and bass while changing the matrix. If you're curious, please listen to the SoundCloud demo and read the short post about the process.
Posted on 2016-08-18— Projects
I started the Outmoded Sequencer Project to build a playful, minimal 8×8 music machine using only basic, inexpensive parts and no microcontroller. It loops simple melodies you can edit live. If you're curious about the design and how to build it, read the full project page for details.
Posted on 2016-05-21— Projects
I recently built a simple, budget-friendly table light from an IKEA candle holder using a NeoPixel ring and an Adafruit Trinket. I walk through parts, wiring, and the ready-made software with 50 color and animation modes. Read the full project page if you'd like to build one.
Posted on 2015-11-24— How and Why, Projects
I explain how to use the Cat Protector project's scripts to prepare an SD card with audio samples. I walk you through installing SOX and Perl, converting WAVs with ConvertAudio.pl, building a disk image, and safely writing it with dd on Linux or macOS. Read the full guide for commands and tips.
Posted on 2015-10-08— Projects
I've published a step-by-step tutorial for building the Data Logger Deluxe. I split the documentation into clear parts — start page, overview, usage, parts list, hardware and software build — so you can follow at your own pace. Please start on the start page and read the full guide.
Posted on 2015-10-04— Projects
I've finished the deluxe data logger and made a short video showing the menu-driven interface, capacitive keypad, and sealed case built for high humidity. I ran into tight flash memory limits and simplified the code; I'm documenting the build and software — please read the full post and check the repo.
Posted on 2015-09-14— Projects
I'm putting the finishing touches on the deluxe data logger: hardware is built and tested, and I'm finalizing the menu-based software. It includes five capacitive inputs, record/view/send/erase functions and wireless charging. Please read the full post for details and prototype photos.
Posted on 2015-09-01— Projects
I fixed a timing bug and logged AM2302 (DHT22) readings every 10 seconds until memory filled. The data revealed temperature precision limits (0.1°C) and jitter that causes humidity jumps. I walk through the patterns, implications for real‑time displays, and link the CSV/Excel—please read the full post for details.
Posted on 2015-08-31— Projects
I noticed my Data Logger Simple was recording identical values every 30 seconds because sleep mode stopped timer1 used by millis(). I fixed this in v1.1 by replacing the DHT timing check with a simpler DHT22-only implementation. Read the full post for details and the v1.1 download.
Posted on 2015-08-27— Projects
I finished a multi-day test of the minimal data logger, recording hourly readings to check stability and battery use. I walk through the reset issue when connecting via TTL, the coarse integer readings, how I imported and charted the data, and the small improvements I plan next — please read on.
Posted on 2015-08-23— Projects
I published a minimal data logger that stores sensor readings in the microcontroller's EEPROM, so no external memory is needed. I walk through parts, hardware assembly, and software — plus a deep-dive on the code and usage. If you're curious, please read the full documentation and share feedback or questions.
Posted on 2015-08-20— Projects
I'm concerned my archived documents could absorb moisture in a root cellar with 75–90% humidity, so I built a DIY data logger to monitor conditions inside sealed boxes. I walk through parts, breadboard-to-stripboard assembly, tests and a wiring diagram — please read the full post for the complete build.
Posted on 2014-11-20— Projects
I made a simple color-changing Xmas decoration from laminated paper strips, NeoPixels and an Arduino Uno. In this post I walk you through cutting and assembling the paper spheres, wiring the LEDs, and the Arduino code so you can recreate it. Read the full project for parts, photos and code.
Posted on 2014-11-13— Projects, Software
I rebuilt the Meggy Jr RGB library from scratch to make game development simpler on the ATmega328P. I focused on low memory use, frame‑synchronized loops with a back buffer, clear color handling, fast pixel operations, reliable button input and a background sound player. Read the post for examples and the GitHub release.
Posted on 2014-11-08— Common, Projects
I tested a prototype of my Cat Protector and then built the finished device. I’ve added a new page that walks through the whole process—design tweaks, parts, assembly, and final testing—in clear, practical steps. If you’re interested in building or learning from the project, please read the full walkthrough.
Posted on 2014-11-08— Projects
I swapped my LM386 for an NXP TDA7052 to reduce distortion and gain more volume. The TDA7052 needs only power, an input and connects to an 8Ω speaker; I added a volume trimmer (I used 47k, 10k also works). Read the full post for the schematic and wiring details.
Posted on 2014-11-06— Projects
I built a small device that detects movement on protected surfaces and plays recorded phrases in your voice to deter the cat. I documented schematics and software details, including SD access, so you can replicate or adapt it. Read the full project notes to learn how it works and ask questions.