Quote Originally Posted by irving2008 View Post
The Les Jones solution is neat, but limited... the Trexon's ability to display Surface Speed based on diameter is useful
Admittedly. I think he designed it as a simple tach, but (with an eye on the clever stuff Shumatech can do with a 1 pulse per rev input, e.g. surface speed) I emailed Les and he kindly provided code to produce a 1 pulse per rev output as well as the 7-seg display. A gentleman.

John