iX / Mbed 2 deprecated Sound11

buzzer

Dependencies:   mbed

main.cpp@0:72ee6ba483f8, 2016-06-09 (annotated)

Committer:
xiaohonglv
Date:
Thu Jun 09 10:12:11 2016 +0000
Revision:
0:72ee6ba483f8
Child:
1:f6f3187e44c5
buzzer

Who changed what in which revision?

UserRevisionLine numberNew contents of line
xiaohonglv 0:72ee6ba483f8 1 #include "mbed.h"
xiaohonglv 0:72ee6ba483f8 2 PwmOut buzzer(p23);
xiaohonglv 0:72ee6ba483f8 3
xiaohonglv 0:72ee6ba483f8 4 // red light
xiaohonglv 0:72ee6ba483f8 5 while (flag = 1);
xiaohonglv 0:72ee6ba483f8 6 {
xiaohonglv 0:72ee6ba483f8 7
xiaohonglv 0:72ee6ba483f8 8 int main() {
xiaohonglv 0:72ee6ba483f8 9
xiaohonglv 0:72ee6ba483f8 10
xiaohonglv 0:72ee6ba483f8 11
xiaohonglv 0:72ee6ba483f8 12 speaker.period_ms(1); //1ms period 1k Hz //
xiaohonglv 0:72ee6ba483f8 13
xiaohonglv 0:72ee6ba483f8 14 speaker = 0.5; //50% duty cycle //
xiaohonglv 0:72ee6ba483f8 15 }
xiaohonglv 0:72ee6ba483f8 16
xiaohonglv 0:72ee6ba483f8 17 }
xiaohonglv 0:72ee6ba483f8 18
xiaohonglv 0:72ee6ba483f8 19
xiaohonglv 0:72ee6ba483f8 20 // yellow light
xiaohonglv 0:72ee6ba483f8 21
xiaohonglv 0:72ee6ba483f8 22 while (flag = 2);
xiaohonglv 0:72ee6ba483f8 23
xiaohonglv 0:72ee6ba483f8 24 {
xiaohonglv 0:72ee6ba483f8 25 float frequency[]= {659,554,659,554,550,494,554,587,494,659,554,440}; //music frequency array
xiaohonglv 0:72ee6ba483f8 26
xiaohonglv 0:72ee6ba483f8 27
xiaohonglv 0:72ee6ba483f8 28 float beat[]= {1,1,1,1,1,0.5,0.5,1,1,1,1,2}; //beat array
xiaohonglv 0:72ee6ba483f8 29 int
xiaohonglv 0:72ee6ba483f8 30 main()
xiaohonglv 0:72ee6ba483f8 31 {
xiaohonglv 0:72ee6ba483f8 32 while (1) {
xiaohonglv 0:72ee6ba483f8 33 for (
xiaohonglv 0:72ee6ba483f8 34 int
xiaohonglv 0:72ee6ba483f8 35 i=0;
xiaohonglv 0:72ee6ba483f8 36 i<=11;
xiaohonglv 0:72ee6ba483f8 37 i++) {buzzer.period(1/(frequency[i])); // PMW period 1/frequency
xiaohonglv 0:72ee6ba483f8 38 buzzer=0.5; //50% duty cycle
xiaohonglv 0:72ee6ba483f8 39 wait(0.5*beat[i]); //hold for beat period
xiaohonglv 0:72ee6ba483f8 40 }
xiaohonglv 0:72ee6ba483f8 41 }
xiaohonglv 0:72ee6ba483f8 42 }
xiaohonglv 0:72ee6ba483f8 43 }
xiaohonglv 0:72ee6ba483f8 44
xiaohonglv 0:72ee6ba483f8 45
xiaohonglv 0:72ee6ba483f8 46
xiaohonglv 0:72ee6ba483f8 47
xiaohonglv 0:72ee6ba483f8 48 //green light
xiaohonglv 0:72ee6ba483f8 49
xiaohonglv 0:72ee6ba483f8 50 while (flag = 3);
xiaohonglv 0:72ee6ba483f8 51
xiaohonglv 0:72ee6ba483f8 52 {
xiaohonglv 0:72ee6ba483f8 53
xiaohonglv 0:72ee6ba483f8 54 int main() {
xiaohonglv 0:72ee6ba483f8 55
xiaohonglv 0:72ee6ba483f8 56 speaker.period_ms(1); //1ms period 1k Hz //
xiaohonglv 0:72ee6ba483f8 57
xiaohonglv 0:72ee6ba483f8 58 speaker = 0; //0% duty cycle //
xiaohonglv 0:72ee6ba483f8 59
xiaohonglv 0:72ee6ba483f8 60 }
xiaohonglv 0:72ee6ba483f8 61
xiaohonglv 0:72ee6ba483f8 62
xiaohonglv 0:72ee6ba483f8 63
xiaohonglv 0:72ee6ba483f8 64
xiaohonglv 0:72ee6ba483f8 65
xiaohonglv 0:72ee6ba483f8 66
xiaohonglv 0:72ee6ba483f8 67
xiaohonglv 0:72ee6ba483f8 68
xiaohonglv 0:72ee6ba483f8 69
xiaohonglv 0:72ee6ba483f8 70
xiaohonglv 0:72ee6ba483f8 71
xiaohonglv 0:72ee6ba483f8 72
xiaohonglv 0:72ee6ba483f8 73
xiaohonglv 0:72ee6ba483f8 74
xiaohonglv 0:72ee6ba483f8 75
xiaohonglv 0:72ee6ba483f8 76
xiaohonglv 0:72ee6ba483f8 77
xiaohonglv 0:72ee6ba483f8 78
xiaohonglv 0:72ee6ba483f8 79
xiaohonglv 0:72ee6ba483f8 80