tachometer, review of methods

wujek:
Hello,

Thanks for your interest.
I managed to handle it using: #include <TimerOne.h> and Timer1.attachInterrupt(timer)
For now I'm waiting for the missing parts to test the whole.

Hey, what's the matter with you? Start a New Thread instead of raising a years-old thread.

A 2 year old thread is a 2 year finished conversation. You reply to Gone and zombie the thread.

Please Stop. Make a new thread and link to the old one.