i need a clear code to count rpm from engine (from the spark plug cable or fuel inyector)
its going to be part of a longer code so no "delay" functions.
also shematics of circuit if needed.
engines go up yo 16,500 rpm
to be used with nano
Hello Sir I am an Electrical Engineer as well as a product designer and have extensive work experience in my fields. Luckily I have already worked on exactly same project and practically tested it