Monetary gain was never a motivating factor when taking on this project and so is not expected nor desired on my part. Your appreciation as expressed here will do just fine.
I have no professional history with developing oscilloscopes, but a master’s degree in science, a passion for microcontrollers and lots of experience with commercial product development helps. The firmware was born from a need to diagnose a friend’s outboard with ignition problems. Due to issues with the stock firmware, I could not get what I needed from the Nano and opted to customize the firmware. This development went quite a bit further than expected, but I don’t like to leave things half done.