Yihui Xiong
Use a buzz (piezo) to produce music
Revision 0:343592047b5a, committed 2014-04-28
- Comitter:
- yihui
- Date:
- Mon Apr 28 06:13:29 2014 +0000
- Commit message:
- initial
Changed in this revision
diff -r 000000000000 -r 343592047b5a main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Apr 28 06:13:29 2014 +0000
@@ -0,0 +1,24 @@
+#include "mbed.h"
+#include "pitches.h"
+
+DigitalOut myled(LED1);
+
+PwmOut buzzer(P1_14);
+
+int frequency[] = {NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3, 1, NOTE_B3, NOTE_C4};
+int beat[] = {4, 8, 8, 4,4,4,4,4 };
+
+int main() {
+ for (int i = 0; i < (sizeof(frequency) / sizeof(int)); i++) {
+ buzzer.period(1.0 / frequency[i]);
+ buzzer.write(0.5);
+ wait(1.0 / beat[i]);
+ buzzer.write(0);
+ wait(0.05);
+ }
+
+ while(1) {
+ myled = !myled;
+ wait(1);
+ }
+}
diff -r 000000000000 -r 343592047b5a mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Mon Apr 28 06:13:29 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/6473597d706e \ No newline at end of file
diff -r 000000000000 -r 343592047b5a pitches.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/pitches.h Mon Apr 28 06:13:29 2014 +0000 @@ -0,0 +1,93 @@ +/************************************************* + * Public Constants + *************************************************/ + +#define NOTE_B0 31 +#define NOTE_C1 33 +#define NOTE_CS1 35 +#define NOTE_D1 37 +#define NOTE_DS1 39 +#define NOTE_E1 41 +#define NOTE_F1 44 +#define NOTE_FS1 46 +#define NOTE_G1 49 +#define NOTE_GS1 52 +#define NOTE_A1 55 +#define NOTE_AS1 58 +#define NOTE_B1 62 +#define NOTE_C2 65 +#define NOTE_CS2 69 +#define NOTE_D2 73 +#define NOTE_DS2 78 +#define NOTE_E2 82 +#define NOTE_F2 87 +#define NOTE_FS2 93 +#define NOTE_G2 98 +#define NOTE_GS2 104 +#define NOTE_A2 110 +#define NOTE_AS2 117 +#define NOTE_B2 123 +#define NOTE_C3 131 +#define NOTE_CS3 139 +#define NOTE_D3 147 +#define NOTE_DS3 156 +#define NOTE_E3 165 +#define NOTE_F3 175 +#define NOTE_FS3 185 +#define NOTE_G3 196 +#define NOTE_GS3 208 +#define NOTE_A3 220 +#define NOTE_AS3 233 +#define NOTE_B3 247 +#define NOTE_C4 262 +#define NOTE_CS4 277 +#define NOTE_D4 294 +#define NOTE_DS4 311 +#define NOTE_E4 330 +#define NOTE_F4 349 +#define NOTE_FS4 370 +#define NOTE_G4 392 +#define NOTE_GS4 415 +#define NOTE_A4 440 +#define NOTE_AS4 466 +#define NOTE_B4 494 +#define NOTE_C5 523 +#define NOTE_CS5 554 +#define NOTE_D5 587 +#define NOTE_DS5 622 +#define NOTE_E5 659 +#define NOTE_F5 698 +#define NOTE_FS5 740 +#define NOTE_G5 784 +#define NOTE_GS5 831 +#define NOTE_A5 880 +#define NOTE_AS5 932 +#define NOTE_B5 988 +#define NOTE_C6 1047 +#define NOTE_CS6 1109 +#define NOTE_D6 1175 +#define NOTE_DS6 1245 +#define NOTE_E6 1319 +#define NOTE_F6 1397 +#define NOTE_FS6 1480 +#define NOTE_G6 1568 +#define NOTE_GS6 1661 +#define NOTE_A6 1760 +#define NOTE_AS6 1865 +#define NOTE_B6 1976 +#define NOTE_C7 2093 +#define NOTE_CS7 2217 +#define NOTE_D7 2349 +#define NOTE_DS7 2489 +#define NOTE_E7 2637 +#define NOTE_F7 2794 +#define NOTE_FS7 2960 +#define NOTE_G7 3136 +#define NOTE_GS7 3322 +#define NOTE_A7 3520 +#define NOTE_AS7 3729 +#define NOTE_B7 3951 +#define NOTE_C8 4186 +#define NOTE_CS8 4435 +#define NOTE_D8 4699 +#define NOTE_DS8 4978