A fire control panel was not working and I was tasked with fixing it. I discovered that a large mechanical relay was throwing off some energy. In my experiments to discover how much, I ended up routinely disconnecting my mouse and resetting my PC with the relay's discharge.
I added the proper relay suppression system, and the panel work perfectly after.
Unfortunately, I was a victim of the afterthought.
Five years ago, optical heart rate tracking seemed like an obvious successor to the popular chest straps used by many fitness buffs, but the technology has faced myriad engineering challenges on its way to market acceptance.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived.
So if you can't attend live, attend at your convenience.