main.cpp

00001 #include "mbed.h"
00002 #include "C12832.h"
00003 #include "pitches.h"
00004 
00005 C12832 lcd(D11, D13, D12, D7, D10); //lcd = (MOSI, SCK, RESET, A0, nCS)
00006 PwmOut buzzer(PTA1);   //buzzer = PTA1
00007 int length = 56;
00008 
00009 float frequency[] = {NOTE_E6, NOTE_DS6, NOTE_E6, NOTE_DS6, NOTE_E6, NOTE_B5, NOTE_D6, NOTE_C6, NOTE_A5,
00010                         NOTE_C5, NOTE_E5, NOTE_A5, NOTE_B5,
00011                         NOTE_E5, NOTE_GS5, NOTE_B5, NOTE_C6,
00012                         NOTE_E6, NOTE_DS6, NOTE_E6, NOTE_DS6, NOTE_E6, NOTE_B5, NOTE_D6,NOTE_C6, NOTE_A5,
00013                         NOTE_C5, NOTE_E5, NOTE_A5, NOTE_B5,
00014                         NOTE_E5, NOTE_GS5, NOTE_B5, NOTE_C6,
00015                         NOTE_B5, NOTE_C6, NOTE_D6, NOTE_E6,
00016                         NOTE_G5, NOTE_F6, NOTE_E6, NOTE_D6,
00017                         NOTE_F5, NOTE_E6, NOTE_D6, NOTE_C6,
00018                         NOTE_E5, NOTE_D6, NOTE_C6, NOTE_B5,
00019                         NOTE_E5, NOTE_E6};
00020 float beat[] = {12,12,12,12,12,12,12,12,9,
00021                 12,12,12,9,
00022                 12,12,12,9,
00023                 12,12,12,12,12,12,12,12,9,
00024                 12,12,12,9,
00025                 12,12,12,9,
00026                 12,12,12,9,
00027                 12,12,12,9,
00028                 12,12,12,9,
00029                 12,12,12,9,
00030                 12,9};
00031 
00032 
00033 int main()
00034 {
00035     lcd.cls();
00036     lcd.locate(0,6);
00037     lcd.printf("Listen to speaker!");
00038     lcd.locate(0,16);
00039     lcd.printf("For Elise~~~");
00040     while(true) {
00041         for(int i = 0; i <= length; i++) {
00042             if(frequency[i] == 0)
00043                 buzzer = 0.0;
00044             else {
00045                 buzzer.period(1.0 / frequency[i]);  //period = (1.0 / frequency)
00046                 buzzer = 0.5;       //duty cycle = 50%
00047             }
00048             thread_sleep_for(3500.0 / beat[i]); //duration = (C / beat)ms
00049         }
00050     }
00051 }