Computer Engineer



Opentags is the open-source AirTag. The goal is to have a fully open-source AirTag that can be used with any device, android or iOS. The project is currently in the early stages, but we have made incredible progress just this year on both the software and hardware side. Feel free to star and follow along on the Github page. Also, I have a few more devboards available for purchase exclusively on this site:

April 18, 2024 路 Ben Stirling

.STL Files

I am taking a very interesting computer graphics course class and finally learned about curves. Why do I care about curves? My background is in Computer Aided Design (CAD) and machining, so I have always been interested in the .STL file format which . I never knew what interpolation meant until I took this class. From my understanding, interpolation is used when we have a set of data points and we need to estimate values between these points....

March 2, 2024 路 Ben Stirling


Simple, Open-source NFC-Writing App I published BotionNFC to the App Store on 2/1/2024. It is a simple, open-source app that allows you to write NFC tags. If you would like to try it out, you can download it here: App Store You can view the source code here: Github Demo Video

February 4, 2024 路 Ben Stirling


This is a quick project that Ari and I built. Link to repo: We built it with the Keyboard Club Event as the deadline. We went through several iterations, in software and hardware. Here was the first PCB: It had a scuffed USB-C arrangement, also we switched to use a epaper display. The second PCB was better, still a bit off though: Main issues were: TP2 and TP3 were reversed (spliced the cable) Bad solder joints on headphone jack (resoldered) Lights were 180 degrees off (resoldered) Ruined epaper display with wrong code Case needed to be adjusted to fit headphone jack (redesigned and printed 2x) Nevertheless, we are stoked to see how it turned out for the event!...

October 15, 2023 路 Ben Stirling

PCB Business Card

I Made a Business Card Because I Didn鈥檛 Have One. The thought behind this one is that I needed a way to stand out. I鈥檝e always been a bit of a non-traditional student, and my background is unique. I wanted to highlight how I build real things. I don鈥檛 just build real things, I ship real things. I initially started with just a bare PCB with a QR code. Everyone always asked, 鈥淒oes it work?...

September 19, 2023 路 Ben Stirling


I built a coffee table with my girlfriend. Frankly, we stole the idea from another couple that did the exact same thing. Speaking of the exact same thing, they gave us their leftover lacuer. I鈥檓 not sponsored by them, so that is why the picture is blurry. I moved into CAD, as things naturally start. It was a 鈥渟imple鈥 build. BOM Wood (~18") Local Wood Shop ~$50 0.75" Steel Boxtube Your Local Makerspace ?...

September 15, 2023 路 Ben Stirling

Pick + Place Machine

I Made a Pick + Place Machine Because My University Didn鈥檛 Have One. | 馃挕 Update: Join the Pick + Place Club Of UCSD: The main requirements: Be useful Be somewhat affordable Be finish-able I have followed Stephen Hawes on youtube since 2020, and have danced around with the idea of making his pick and place since it was open source. After he launched his company, I figured I could order the COTS parts and machine the rest at my school makerspace....

September 14, 2023 路 Ben Stirling

Custom Split Keyboard

I made a custom split keyboard becuase I didn鈥檛 have one. Demo Video I built a split keyboard with my friend Ari. BOM Switches $20 Stablizers $16 Caps $20 Wood $37 PCB $85 Cord $4 Rubber Feet $8 GRAND TOTAL: ~$190 Below is a photo montage of the build!

September 9, 2023 路 Ben Stirling


Problem: Garage Parking is difficult and dangerous Having a tight parking garage and having to perfectly position the vehicle to have enough space to get out while trying to maximize usable space and not risk dents and scratches, not even including the fact that north of 20% of accidents occur in parking situations. Solution: We want to provide drivers with accurate distance from their desired parking spot through an app interface....

September 8, 2023 路 Ben Stirling


I Wrote An App Because I Didn鈥檛 Have One. Demo Video I have since published the app to the App Store. You can download it here: App Store Some features include: Notion OAuth Sign-in A simple task list, synced with your Notion page It is simple but that is my goal. I use it every day and it has been a huge help for focusing on what I need to do....

September 2, 2023 路 Ben Stirling


My good CEO friend and I built a FlightSim controller from scratch. The CEO had a background in flight simulation and electrical engineering, and I had a background in mechanical design and software. We decided to team up and build a controller that was more realistic than the current offerings. He started by designing the electrical system, which included a custom PCB and a custom firmware. I started by designing the mechanical system, which included a custom knob and a custom mounting system....

September 1, 2023 路 Ben Stirling

DeepWater Exploration


August 14, 2023 路 Ben Stirling


Co-Founder. We tried to simplify 3D printing. We developed a functional product and had an unsuccessful Kickstarter campaign.

July 14, 2023 路 Ben Stirling