Question about Hertz
by Cy on 01/20/03 at 12:56:32
I was just thinking about a LED to light up at a certain RPM in my car. I used the conversion page to convert 4000 rpm to hertz and it came to be 66hz. I want something that tells me that it's 66hz and sends me a positive signal for the LED. Does anybody know what is needed to be done?? Is there other ways?