[mluckham]

I've modified 0.75 to select US or metric units at compile time.

Eventually I'd like to be able to switch units on the fly or at least select USA/Metric in the configuration and I've started coding in that style, but there wasn't enough program memory on my first attempt.

Updated June 12, 2009: it works on my 95 Neon Sport, 2.0L SOHC, 5MT - VSS/KM=9926, MICROSECONDS/LITRE=57442679.

I'm working on version 76m using the Atmel328 and Arduino IDE 0013 - plenty of space now - have already added RPM and working on L/KM.


Thanks everybody for this most excellent project. Being relatively new at Arduino, it is good to see more advanced code samples using interrupts/etc.