Stroboscope

Introduction For a Nottingham Hackspace project, I was asked if I could measure the RPM of a motor. “Sure!”, I said. What was really needed was quickly bodging together a beam-break circuit and connecting it to an oscilloscope. This would have taken a couple of hours at the most. But like a proper software engineer, I decided to make the “generic” solution to the problem, which took ages. There are actually ...

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