make. break. in no particular order.

My name is Andy and I make lots of random stuff. Read more about me on the About page.

What's New, You Ask?

I've released a tiny little macOS menubar utility I use to quickly swap my SSH config files between different environments or use cases. It's called Sshwitch.

Side note: On this website, I am using the super-cool Input font for this site. If you write code and you want to use it for your code editor, grab it here: https://input.djr.com/

Latest Blog Articles

CalDigit TS4 Thunderbolt 4 Dock
๐Ÿ“† Dec 30. 2025
๐Ÿ“ Computer Stuff

CalDigit TS4 Thunderbolt 4 Dock

My thoughts on the CalDigit TS4 Thunderbolt 4 dock

The Shed Beast: A 12x16 Wood Frame Storage Shed
๐Ÿ“† Mar 23. 2020
๐Ÿ“ Uncategorized

The Shed Beast: A 12x16 Wood Frame Storage Shed

Designing and building a massive 192 sq ft workshop shed.

Fitness Tracker Tester (& Pokemon Incubator?)
๐Ÿ“† Oct 12. 2016
๐Ÿ“ Uncategorized

Fitness Tracker Tester (& Pokemon Incubator?)

A generic device for... testing fitness trackers. Yeah, testing.

Photo Parade!

Domo Wobbly Balancing Robot Thing
2012 Kentucky Bourbon Trail
Charlieplexing LEDs with an AVR ATmega328
DIY Cornhole Game Set
Designing a New Man Cave and Workshop
Turn a Servo Into an Inexpensive Geared Motor
Hack the SparkFun Big Red Dome Button!
Objective-C/iOS/iPhone: UIColor from NSString
Fitness Tracker Tester (& Pokemon Incubator?)
CalDigit TS4 Thunderbolt 4 Dock
Tony Stark for Halloween 2010: The Arc Reactor (RT Mark II)
Home-Aged Bourbon YUM!
The 2014 Southwest Maker Fest in Mesa, AZ
My First Amplifier Circuit: LM386 Easy Amp
Save Buckyballs Rare Earth Magnet Desk Toys!
Backyard Propane Fire Pit, Pavers and Outhouse Project
FitBit Contest at meltmedia - No Cheat-O-Matic
What happens when a fat guy on a golf cart parks on my iPhone?
December 2014 Office Chairiot Mark II Update: Electronics A Plenty!
Adjustable Workbench Cigar Holder
meltmedia Hack Day July 2012!
Office Chairiot Mark II - Progress Update
Making Mad Props for meltmedia's Interactive Superhero Marketing Launch: The HAT
Bourbon, Yummy Bourbon!
AC Current Detection with Allegro AC756 Linear Current Sensors
Swanky Chinese Lamp
The Shed Beast: A 12x16 Wood Frame Storage Shed
Updated Office Chairiot Mark II Systems Schematic
RoboStocking - AVR, Servo, Motor, IR Sensor, and BOOM!!! Merry Christmas!
A Maker Review on Bluetooth Smart Beacons (or Apple iBeacons)
Domo Wobbly Balancing Robot Thing
2012 Kentucky Bourbon Trail
Charlieplexing LEDs with an AVR ATmega328
DIY Cornhole Game Set
Designing a New Man Cave and Workshop
Turn a Servo Into an Inexpensive Geared Motor
Hack the SparkFun Big Red Dome Button!
Objective-C/iOS/iPhone: UIColor from NSString
Fitness Tracker Tester (& Pokemon Incubator?)
CalDigit TS4 Thunderbolt 4 Dock
Tony Stark for Halloween 2010: The Arc Reactor (RT Mark II)
Home-Aged Bourbon YUM!
The 2014 Southwest Maker Fest in Mesa, AZ
My First Amplifier Circuit: LM386 Easy Amp
Save Buckyballs Rare Earth Magnet Desk Toys!
Backyard Propane Fire Pit, Pavers and Outhouse Project
FitBit Contest at meltmedia - No Cheat-O-Matic
What happens when a fat guy on a golf cart parks on my iPhone?
December 2014 Office Chairiot Mark II Update: Electronics A Plenty!
Adjustable Workbench Cigar Holder
meltmedia Hack Day July 2012!
Office Chairiot Mark II - Progress Update
Making Mad Props for meltmedia's Interactive Superhero Marketing Launch: The HAT
Bourbon, Yummy Bourbon!
AC Current Detection with Allegro AC756 Linear Current Sensors
Swanky Chinese Lamp
The Shed Beast: A 12x16 Wood Frame Storage Shed
Updated Office Chairiot Mark II Systems Schematic
RoboStocking - AVR, Servo, Motor, IR Sensor, and BOOM!!! Merry Christmas!
A Maker Review on Bluetooth Smart Beacons (or Apple iBeacons)

Maker Resources

A radnom sampling of tools and resources I find useful. View all resources โ†’

Resources for STEM

Find stuff for learning Science, Technology, Engineering, and Mathematics. View STEM

STEM Stuff
PBS Kids Cyberchase

Games, videos, and activities to get kids involved in a science- and math-based adventure to learn and save the universe from evil cartoon characters (itโ€™s hard to believe those cute little characters are evil, but weโ€™ll just go with the story). ๐Ÿ˜‰ There are multilingual activities, as well, FYI.

Visit Resource โ†’
STEM Stuff
Code.org

"Code.orgยฎ is an education innovation nonprofit dedicated to the vision that every student in every school has the opportunity to learn computer science and artificial intelligence as part of their core K-12 education. We expand access to and participation in computer science in schools, with a focus on increasing participation by young women and students from other underrepresented groups. The leading provider of K-12 computer science curriculum in the largest school districts in the United States, Code.org also organizes the annual Hour of Code campaign, which has engaged more than 15% of all students in the world. Code.org is supported by generous donors including Microsoft, Amazon, Google and many others." โ€”Code.org About page

Visit Resource โ†’
STEM Stuff
Science Buddies

โ€œScience Buddies mission is to inspire and educate students of all ages with hands-on STEM explorations that reflect their unique personal interests. By providing highly personalized educational experiences, we drive student discovery, engagement, and learning in STEM subjects. Our vision is to develop high-quality scientist-authored explorations covering all key areas of STEM, from the classics to the cutting edge, in formats tailored for the needs of the audiences having the greatest potential to impact student STEM learning, students themselves, classroom teachers, informal educators, and parents. Free and open to everyone, we level the playing field, making STEM learning possible for students of all demographics.โ€œ โ€”Science Buddies About page

Visit Resource โ†’

Resources for STEM & Women/Girls in Tech

Technology is super cool and it shouldn't care who makes it that way. Women/Girls in Tech.

Women & Girls in Tech
Encouraging Girls in Math and Science โ€“ What Works

A guide to provide teachers with specific recommendations for encouraging girls in math and science that can be carried out in the classroom without requiring systemic change. Other school personnel having direct contact with students, such as coaches, counselors, and principals, will also find the guide useful.

Visit Resource โ†’