Projects

Making an OBS ‘Mute’ Indicator

I have a friend who likes to stream on Twitch, and he has a problem. Every hour or two he likes to be healthy and take a five minute break – standing up, stretching, going to the bathroom, etc. During this time he mutes his microphone and puts on some background music to keep the audience entertained. But when he comes back he frequently forgets to unmute his microphone so that the stream can hear him. It’s not unusual for him to be talking to himself for five minutes or more until some kind soul in chat speaks up and says “you know you’re muted, right?”

To help him and others who frequently forget to unmute their microphone, I decided to build a physical indicator for the mute status in OBS Studio.

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By Dave Madison, ago

Making Firefly Armbands from The Last of Us

We are living in unprecedented times. There’s economic uncertainty, civil unrest, and a global pandemic that’s causing chaos and threatening our way of life. In 2020 these are the times we live in. But this also describes the events from The Last of Us, Naughty Dog’s widely acclaimed action-adventure survival horror game from 2013.

The game’s story follows Joel and Ellie, two survivors living in the post-pandemic United States. Ellie is a teenage girl who is immune to the cordyceps infection that has ravaged humanity; Joel is an older man who, twenty years later, is still reeling from the murder of his own daughter during the early days of the outbreak. He has been charged with taking Ellie to find the “Fireflies” – a rebel group that is working to find a cure.

In light of current events and in anticipation of the game’s sequel The Last of Us Part II releasing on June 19th, I decided to build my own “Firefly” armbands from the first game.

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By Dave Madison, ago

DIY SparkFun Pro Micro with USB-A Port

Lately I’ve been working on a project that will use an Arduino to translate signals from a wireless receiver into USB HID inputs for my computer. I had the perfect microcontroller picked out too: the SparkFun Pro Micro, which uses the Arduino-compatible ATmega32U4 and has enough I/O pins for my project and then some. There’s just one problem – the Pro Micro doesn’t have a USB-A port to plug directly into a computer! Instead it has a micro USB-B port, and requires a short cable to connect it to a PC.

Luckily for me the Pro Micro, like many of SparkFun’s designs, is open source and licensed under Creative Commons Share-alike. So I decided to dive in and modify the design to create my own version of the Pro Micro with a USB-A port!

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By Dave Madison, ago

Playing Spin Rhythm XD with a Modified DJ Hero Controller

A few weeks ago, a friend of mine introduced me to a new rhythm game. Unlike previous titles such as Guitar Hero or Rock Band that use multiple discrete buttons in order to match different notes, this game used a virtual wheel – an analog input to slide, spin, and tap along with the beat. To top it off the game featured an electronic music tracklist and was a blast to play.

The game is called Spin Rhythm XD, and it was designed to be played with a DJ MIDI controller. Having no such professional DJ-ing equipment handy I decided to do the next best thing: convert my old plastic Wii DJ Hero turntable into a controller for Spin Rhythm XD!

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By Dave Madison, ago

Building McCree’s Belt Buckle from Overwatch

I decided to try my hand at building my own version of McCree’s belt buckle from Overwatch! I used references from the game in order to create a comprehensive digital model which I then 3D printed, smoothed, molded, cast, mounted to a buckle blank, painted, and weathered. Start to finish (and with lots of breaks in-between!), this entire process took me a little over three years to complete.

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By Dave Madison, ago

DIY Platform 9 ¾ Sign from King’s Cross

When the story of Harry Potter first took the world by storm in 1997, readers were enamored by J.K. Rowling’s magical universe and the enchanting places within. The ordinary house at 4 Privet Drive in Little Whinging, where “the boy who lived” grew up with his horrible Aunt and Uncle (and their son, Dudley). The Leaky Cauldron, the grubby little pub that serves as the gateway to the fantastical shops and stalls of Diagon Alley. And, of course, the world’s most famous non-existent train platform: Platform Nine and Three-Quarters.

The fictional platform is located in a real muggle-inhabited location – King’s Cross station in northern London. Wizards and witches running at the wall between platforms 9 and 10 would instantly be transported to the mythical platform, where they would say farewell to their families and depart on the scarlet train to Hogwarts School of Witchcraft and Wizardry. Celebrating this connection to the world of Harry Potter, the employees at King’s Cross erected a real-life “Platform 9 ¾” sign in the terminal, which has since become a place of pilgrimage for fans the world ’round.

My sister is one of these many Harry Potter devotees, so this past Christmas I decided to build her her own replica of this iconic sign.

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By Dave Madison, ago

FrameVis – Video Visualizer and Movie Barcode Generator

FrameVis is a Python script for creating visualizations from video frames, also known as “movie barcodes” due to their vertical striping. The script uses the OpenCV library to read from a video file, load frames into memory, and then stack them together to make a new image visualizing the entire film. The resulting visualizations are as fascinating as they are beautiful… you can see the flow of the color grading, the pacing of the editing, and if you know the film well enough you can even pick out certain scenes or even shots.

This script works on Windows, Mac, and Linux and is compatible with all OpenCV file types and codecs. You can download it on GitHub.

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By Dave Madison, ago

Logitech C270 Webcam Mount for 2020 Extrusion

I have an old Logitech C270 webcam that I use in combination with OctoPrint to monitor my 3D printer. Since my printer doesn’t have its own enclosure, I made a simple camera “pole” out of some spare 2020 aluminum extrusion I had lying around and stuck the webcam on top. There’s just one problem – the webcam’s bracket wasn’t designed for the shape of the extrusion, and sometimes the vibrations from the printer occasionally knock the webcam off! So I decided to put my skills to work and design a 3D printed mount to bolt the webcam directly to the aluminum extrusion.

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By Dave Madison, ago