rwaldron/johnny-five — pull request #256 by julianduque (2013-11-19 07:25:03+00:00)
Title: Piezo support

Fixes #92

This is based on the work by @deshawnbw and @pfiller https://gist.github.com/pfiller/5680471 but with correct nano timing using `nodetimer`, isn't the best resolution but the notes and the timing works like the example in: https://github.com/sparkfun/SIK-Guide-Code/blob/master/Circuit_11/Circuit_11.ino