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4180Lab2Part10
Fork of speaker_demo_PWM by
main.cpp
- Committer:
- 4180_1
- Date:
- 2013-01-20
- Revision:
- 0:b2fdf3770282
- Child:
- 1:2e6ea42675c7
- Child:
- 2:68eee0fb2026
File content as of revision 0:b2fdf3770282:
#include "mbed.h" #include "Speaker.h" // Speaker test program - euro police style siren now using new Speaker class method // for documentation see http://mbed.org/users/4180_1/notebook/using-a-speaker-for-audio-output/ // can also be used to play a song, if you have the notes and durations // for musical note frequencies see http://en.wikipedia.org/wiki/Piano_key_frequencies int main() { // setup instance of new Speaker class, mySpeaker using pin 21 // the pin must be a PWM output pin Speaker mySpeaker(p21); // loops forever playing two notes on speaker while(1) { mySpeaker.PlayNote(969.0,0.5,0.5); mySpeaker.PlayNote(800.0,0.5,0.5); } }