From the Arduino.cc forums, Bill writes -
This is still a prototype but it’s functionally complete and works very well. It’s messy because I hacked up a generalized arduino proto-shield to mount it but there’s really not a lot to the hardware and now that it’s working I can refine it to something much smaller and neater. The functions that are there at the moment are speedo, tach, and gear indicator the speedo and tach are dead accurate and the gear indicator responds very crisply to shifting up or down.
Using LCD displays can be uniquely satisfying and practical – should be interesting to see this one in its final road-ready form (chrome enclosure?) Check out the forum thread for more on how he’s gathering the pertinent data.
In the Maker Shed: ProtoShield for Arduino Kit