Just in case. Bar graph display a bit too modern-looking for you? Well then you should check out [mircemk]’s OLED version that displays dual analog meters.

At the top of the tachometer code you can see the configuration line which defines the bar graph display “const int maxRPM ... That is all there is to the Arduino + LCD version of the little ...

Just in case. Bar graph display a bit too modern-looking for you? Well then you should check out [mircemk]’s OLED version that displays dual analog meters.