i`m using arduino mega, with 3,2" tft, witch use pin 0 to 7, and pin 22 to 53
my free pins are 8 tm 14
i like to make two rpm readings, to show on my display
the problem is, I only can find examples like this http://playground.arduino.cc/Main/ReadingRPM witch uses pin 2 for reading rpm.
any help is appreciated,