I am an Arduino-newcomer and have to realize a rpm-counter within the next 3 weeks. I get the Arduino Uno om Wednesday. so I want to ask for some tips in advance. I searched for similar topics here, but didn't found a properly fitting statement.
I have to count a 5V-signal from one channel of a shaft encoder, resolution 25 ppr, on a motor up to 3000 rpms.
Could I do this with this code, adapting some values and variables?? http://www.arduino.cc/playground/Main/ReadingRPM
In the next step I want to give the rpm value out with the PWM-function to a second measurement and display unit. For this I think I only get out a resolution of about 10 rpms, because of the 8-bit resolution of the PWM-Out.
Can I do it this way??
best regards and thx, Simon