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a year ago
742 B
2
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#include "mbed.h" #define C 261.63 #define C_S 277.18 #define D 293.66 #define D_S 311.13 #define E 329.63 #define F 349.23 #define F_S 369.99 #define G 392 #define G_S 415.3 #define A 440 #define A_S 466.16 #define B 493.88 class Buzzer { public: Buzzer(PinName pin) : _pin(pin) {} void beep(int freq, float time) { _pin = freq? 0.5:0; _pin.period(freq? 1.0/freq :1); wait(time); } private: PwmOut _pin; }; Buzzer buzzer(PA_4); int main() { short freq[] = {G, G, E, 0,G,G,E,0,G,G,A,G,G,F,0}; //frekvence double time[] = {0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,1,1,0}; //cas for(int i = 0; i < sizeof(freq); i++) { buzzer.beep(freq[i], time[i]); } }