Q&A Forum

The issue of the engine rpm is solved. I checked the output signal of the optocoupler with an oscilloscope. It gave a square wave between 1.4v and 5v....

For now i use an arduino to replicate an engine rpm of 1200rpm. It is connected to the input of the optocoupler. On the output i connected a led to ...

Hi, The big engine rpm gauge is working when the rollers are spinning and the gear ratio is set. I want the rpm2 gauge to plot the measured engine...