Lee Nam Cheol / Mbed OS lab05-app-shield-speaker

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Dependencies:   C12832

main.cpp@1:d3bf38c7423c, 2020-05-11 (annotated)

Committer:
namcheol
Date:
Mon May 11 13:42:59 2020 +0000
Revision:
1:d3bf38c7423c
Parent:
0:f31836d48420 
lab05-app-shield-speaker

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dshin 0:f31836d48420 1 #include "mbed.h"
namcheol 1:d3bf38c7423c 2 #include "C12832.h"
namcheol 1:d3bf38c7423c 3 #include "pitches.h"
namcheol 1:d3bf38c7423c 4
namcheol 1:d3bf38c7423c 5 C12832 lcd(D11, D13, D12, D7, D10); //lcd = (MOSI, SCK, RESET, A0, nCS)
namcheol 1:d3bf38c7423c 6 PwmOut buzzer(PTA1); //buzzer = PTA1
namcheol 1:d3bf38c7423c 7 int length = 56;
dshin 0:f31836d48420 8
namcheol 1:d3bf38c7423c 9 float frequency[] = {NOTE_E6, NOTE_DS6, NOTE_E6, NOTE_DS6, NOTE_E6, NOTE_B5, NOTE_D6, NOTE_C6, NOTE_A5,
namcheol 1:d3bf38c7423c 10 NOTE_C5, NOTE_E5, NOTE_A5, NOTE_B5,
namcheol 1:d3bf38c7423c 11 NOTE_E5, NOTE_GS5, NOTE_B5, NOTE_C6,
namcheol 1:d3bf38c7423c 12 NOTE_E6, NOTE_DS6, NOTE_E6, NOTE_DS6, NOTE_E6, NOTE_B5, NOTE_D6,NOTE_C6, NOTE_A5,
namcheol 1:d3bf38c7423c 13 NOTE_C5, NOTE_E5, NOTE_A5, NOTE_B5,
namcheol 1:d3bf38c7423c 14 NOTE_E5, NOTE_GS5, NOTE_B5, NOTE_C6,
namcheol 1:d3bf38c7423c 15 NOTE_B5, NOTE_C6, NOTE_D6, NOTE_E6,
namcheol 1:d3bf38c7423c 16 NOTE_G5, NOTE_F6, NOTE_E6, NOTE_D6,
namcheol 1:d3bf38c7423c 17 NOTE_F5, NOTE_E6, NOTE_D6, NOTE_C6,
namcheol 1:d3bf38c7423c 18 NOTE_E5, NOTE_D6, NOTE_C6, NOTE_B5,
namcheol 1:d3bf38c7423c 19 NOTE_E5, NOTE_E6};
namcheol 1:d3bf38c7423c 20 float beat[] = {12,12,12,12,12,12,12,12,9,
namcheol 1:d3bf38c7423c 21 12,12,12,9,
namcheol 1:d3bf38c7423c 22 12,12,12,9,
namcheol 1:d3bf38c7423c 23 12,12,12,12,12,12,12,12,9,
namcheol 1:d3bf38c7423c 24 12,12,12,9,
namcheol 1:d3bf38c7423c 25 12,12,12,9,
namcheol 1:d3bf38c7423c 26 12,12,12,9,
namcheol 1:d3bf38c7423c 27 12,12,12,9,
namcheol 1:d3bf38c7423c 28 12,12,12,9,
namcheol 1:d3bf38c7423c 29 12,12,12,9,
namcheol 1:d3bf38c7423c 30 12,9};
dshin 0:f31836d48420 31
dshin 0:f31836d48420 32
dshin 0:f31836d48420 33 int main()
dshin 0:f31836d48420 34 {
namcheol 1:d3bf38c7423c 35 lcd.cls();
namcheol 1:d3bf38c7423c 36 lcd.locate(0,6);
namcheol 1:d3bf38c7423c 37 lcd.printf("Listen to speaker!");
namcheol 1:d3bf38c7423c 38 lcd.locate(0,16);
namcheol 1:d3bf38c7423c 39 lcd.printf("For Elise~~~");
namcheol 1:d3bf38c7423c 40 while(true) {
namcheol 1:d3bf38c7423c 41 for(int i = 0; i <= length; i++) {
namcheol 1:d3bf38c7423c 42 if(frequency[i] == 0)
namcheol 1:d3bf38c7423c 43 buzzer = 0.0;
namcheol 1:d3bf38c7423c 44 else {
namcheol 1:d3bf38c7423c 45 buzzer.period(1.0 / frequency[i]); //period = (1.0 / frequency)
namcheol 1:d3bf38c7423c 46 buzzer = 0.5; //duty cycle = 50%
namcheol 1:d3bf38c7423c 47 }
namcheol 1:d3bf38c7423c 48 thread_sleep_for(3500.0 / beat[i]); //duration = (C / beat)ms
namcheol 1:d3bf38c7423c 49 }
dshin 0:f31836d48420 50 }
dshin 0:f31836d48420 51 }