Rob Toulson
/
RealTimeLab04_Buzzer
Real Time Lab Program
Revision 0:4463987cbbfb, committed 2015-01-25
- Comitter:
- robt
- Date:
- Sun Jan 25 16:27:11 2015 +0000
- Commit message:
- Real Time Lab Program
Changed in this revision
main.cpp | Show annotated file Show diff for this revision Revisions of this file |
mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sun Jan 25 16:27:11 2015 +0000 @@ -0,0 +1,20 @@ +#include "mbed.h" +PwmOut buzzer(p25); + +//frequency array +float frequency[]= {659,554,659,554,440,494,554,587,494,659,554,440}; +//beat array +float beat[]= {1,1,1,1,1,0.5,0.5,1,1,1,1,2}; + + + +int main() +{ + while (1) { + for (int i=0; i<=11; i++) { + buzzer.period(1/(frequency[i])); // set PWM period + buzzer=0.5; // set duty cycle + wait(beat[i]); // hold for beat period + } + } +}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Jan 25 16:27:11 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/4fc01daae5a5 \ No newline at end of file