While I was getting ready to put in my new VDO speedometer, I started doing some research to figure out how the pulse value is determined. So, I was reading this very great piece from The Great Fandango, and I thought to myself, "There has to be an online tool for this," but to my astonishment, there wasn't one!
After some tweaking with jQuery and JavaScript (and a Corona Extra, of course), we now have...