How to make zero error Arduino based RPM Meter simple DIY tutorial*Digital Tachometer~HRB-EMBEDDED

[@davidstonier-gibson5852]

Zero error is a pretty big claim. I designed hundreds of measurement systems in my 50+ year career, not one had zero error. Some friendly advice: Analyse your design and work out its error limits.
(I trust you don't teach instrumentation?)

[@hrbembedded_craft]

Great point