EyasSat
The CEO of Colorado Satellite Services was consulting for the US Air Force Academy, and they realized a large gap in the experience of graduates in the Aerospace program that were expected to drive real satellites after graduation: without hands-on experience with how satellites responded to control commands and how telemetry related to real-world movement, they struggled to understand how their commands affected spacecraft.
I came in as fractional CTO to build out the software layer of an educational satellite training product eventually called EyasSat. (An 'Eyas' is a baby falcon, and a falcon is the mascot of the USAFA).
I quickly realized there was a gap in how the product was being envisioned as a single device - real satellites are built of various components built by different vendors, and only integrated close to launch.
I created a physical hardware architecture that enabled the product to be built up one module at a time, but physically attached in a way that students could easily do in the classroom.
Combined with the command and control software I architected and built in C, this enabled students to do acceptance testing on each module individually, mirroring their real-world responsibilities.
They then could test the integration of each module, as well as integration with the case, sensors, and actuators, to build a complete satellite for the lab.
This product was very successful, and was sold to a number of universities with aerospace programs.
I was named on a patent for this product in 2009.
Scaling manufacturing required an exit, which happened successfully in 2010.