About Circuit Happy
Circuit Happy was founded in 2017 by Ed Guild to create electronic music tools that help people connect and jam together. The first project was a collaboration between Nick Donaldson and Ed that became the original Missing Link Desktop. In 2025 Circuit Happy became a partnership between Ed Guild and Matthew Campbell. Matt and Ed met while both were working at iZotope in Cambridge, Massachusetts. Although on separate teams at iZotope, they always talked of working on a project together at work. Years after they each had left iZotope they reunited to join forces to take Circuit Happy to the next level!
About Ed
Ed's background in electronic music, live performance, and graphic design gives him a visual and musical perspective when approaching the design of electronics.
Ed has performed in bands and DJ'd since 2001. He first got involved with bands to explore live video projecting, aka, being a Video Jockey (VJ). From there he got more and more interested in live and studio sound technology. He is especially interested in groups that bring the studio to the stage, using unorthodox gear that is normally not used on stage.
The natural progression for Ed was to create his own hardware to help people create in the studio and on stage.
About Matt
Matt originally started helping Circuit Happy in 2020 to when we started working with our first contract manufacturer. Matt re-designed the PCB layout for the original ML:2 eurorack module to make it easier to manufacture. He then helped communicate the design to our contract manufacturer.
Matt went above and beyond to design a system to test and flash the firmware on the final assembled hardware. Matt also gave lots of guidance on coding on FreeRTOS architecture within the ESP32 platform. He now heads up our technical designs and makes things ever so much more professional and qualty [sic] than Ed is capable of doing on his own.
Collaborators
Circuit Happy gets by with a little help from our friends.
Nick Donaldson
Nick is the technical consultant on The Missing Link project. But that title falls short of describing how crucial Nick was to this project. Nick took on writing most of the C++ code base for the original Missing Link Desktop along with aiding and guiding me through the circuit board design for Missing Link. During the development of The Missing Link Junior we hired Nick to rewrite the codebase to have a tighter architecture that gave us a great foundation upon which to write new features.
Matt Hodson
Matt, aka MATTHS, is our marketing consultant. We first knew Matt as an artist who created great synth-oriented videos and recorded and performed cool music. We first met in person at Machina Bristronica in 2023 where we talked about how we could work together. Since then Matt has whipped our social media presence in to shape and has connected us to his network of other artists and creators to help us promote our products further out in to the wide world.
Karl Majer
Karl is a Unix ninja who showed me the ways of bash scripting, cool file system tricks, and system optimizations. Without him, the original Missing Link Desktop would not have a Software Update tool, and it would have taken me ten times longer to set up each system to be ready for sale.
Mikey Maker
Mikey Maker is a talented screen printer in the Boston area. He printed my product boxes and faceplates for the original Missing link Desktop. Most recently Mikey printed our t-shirts.
