Rob Toulson / Mbed 2 deprecated RealTimeLab04_Buzzer

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Show/hide line numbers main.cpp Source File

main.cpp

00001 #include "mbed.h"
00002 PwmOut buzzer(p25);
00003 
00004 //frequency array
00005 float frequency[]= {659,554,659,554,440,494,554,587,494,659,554,440};
00006 //beat array
00007 float beat[]= {1,1,1,1,1,0.5,0.5,1,1,1,1,2};   
00008 
00009 
00010           
00011 int main()
00012 {
00013     while (1) {
00014         for (int i=0; i<=11; i++) {
00015             buzzer.period(1/(frequency[i]));               // set PWM period
00016             buzzer=0.5;                                    // set duty cycle
00017             wait(beat[i]);                                 // hold for beat period
00018         }
00019     }
00020 }
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