This is from justinkim/PWM_Tone_Library modified for six octaves.

Fork of PWM_Tone_Library by justin kim

Revisions of pwm_tone.h

Revision Date Message Actions
1:4b841d62e529 2016-10-21 ?? File  Diff  Annotate
0:d06af372d384 2015-07-24 bug fix File  Diff  Annotate