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mX mbed BaseBoard buzzer
Diff: main.cpp
- Revision:
- 0:c25709d578e5
diff -r 000000000000 -r c25709d578e5 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Wed Dec 08 06:22:00 2010 +0000 @@ -0,0 +1,16 @@ +#include "mbed.h" + +PwmOut buzzer(p24); + +int main() +{ + buzzer.period(0.020); // a 20ms period + while (1) + { + for(float offset=0.0; offset<0.001; offset+=0.0001) + { + buzzer.pulsewidth(0.001 + offset); // a pulsewidth between 1-2ms + wait(0.25); + } + } +} \ No newline at end of file