TVZ Mechatronics Team
Star_Wars_The_Imperial_March Piezo Buzzer Song
Diff: main.cpp
- Revision:
- 0:de84a99fc49f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Mon Nov 18 12:58:22 2019 +0000
@@ -0,0 +1,70 @@
+#include "mbed.h"
+
+PwmOut speaker(p26);
+AnalogIn pot1(p19);
+AnalogIn pot2(p20);
+DigitalIn joystickCenter(p14);
+
+int main() {
+ // note frequencies in Hz
+ // rows: C C# D Eb E F F# G G# A Bb B
+ //columns: 0 1 2 3 4 5 6 7 8
+
+ enum noteNames {C, Cs, D, Eb, E, F, Fs, G, Gs, A, Bb, B};
+ float nt[12][9] = { {16.35}, {17.32}, {18.35}, {19.45}, {20.60}, {21.83},
+ {23.12}, {24.5}, {25.96}, {27.5}, {29.14}, {30.87} };
+ for (int i = 0; i < 12; i++)
+ for (int j = 1; j < 9; j++)
+ nt[i][j] = nt[i][j-1] * 2;
+
+ while(1) {
+ //int scale = pot2 * 8;
+ float speed = 0.05 + pot1; // minimum wait is 50 ms
+ float notesCiciban[] = {nt[A][1], 0, nt[A][1], 0, nt[A][1], 0,
+ nt[F][1], 0, nt[C][2], 0, nt[A][1], 0,
+ nt[F][1], 0, nt[C][2], 0, nt[A][1], 0,
+ nt[E][2], 0, nt[E][2], 0, nt[E][2], 0,
+ nt[F][2], 0, nt[C][2], 0, nt[Gs][1], 0,
+ nt[F][1], 0, nt[C][2], 0, nt[A][1], 0,
+ nt[A][2], 0, nt[A][1], 0, nt[A][1], 0,
+ nt[A][2], 0, nt[Gs][2], 0, nt[G][2], 0,
+ nt[Fs][2], 0, nt[F][2], 0, nt[Fs][2], 0,
+ nt[Bb][1], 0, nt[Eb][2], 0, nt[D][2], 0,
+ nt[Cs][2], 0, nt[C][2], 0, nt[B][1], 0,
+ nt[C][2], 0, nt[F][1], 0, nt[Gs][1], 0,
+ nt[F][1], 0, nt[Gs][1], 0, nt[C][2], 0,
+ nt[A][1], 0, nt[C][2], 0, nt[E][2], 0,
+ nt[A][2], 0, nt[A][1], 0, nt[A][1], 0,
+ nt[A][2], 0, nt[Gs][2], 0, nt[G][2], 0,
+ nt[Fs][2], 0, nt[F][2], 0, nt[Fs][2], 0,
+ nt[Bb][1], 0, nt[Eb][2], 0, nt[D][2], 0,
+ nt[Cs][2], 0,};
+ float beatCiciban[] = {1, 0.5, 1, 0.5, 1, 0.5,
+ 0.5, 0.5, 0.5, 0.5, 1, 0.5,
+ 0.5, 0.5, 0.5, 0.5, 2, 0.5,
+ 1, 0.5, 1, 0.5, 1, 0.5,
+ 0.5, 0.5, 0.5, 0.5, 1, 0.5,
+ 0.5, 0.5, 0.5, 0.5, 2, 0.5,
+ 1, 0.5, 0.5, 0.5, 0.5, 0.5,
+ 1, 0.5, 0.5, 0.5, 0.5, 0.5,
+ 0.25, 0.5, 0.25, 0.5, 0.25, 0.5,
+ 0.25, 0.5, 1, 0.5, 0.5, 0.5,
+ 0.5, 0.5, 0.25, 0.5, 0.25, 0.5,
+ 0.25, 0.5, 0.25, 0.5, 1, 0.5,
+ 0.5, 0.5, 0.5, 0.5, 1, 0.5,
+ 0.5, 0.5, 0.5, 0.5, 2, 0.5,
+ 1, 0.5, 0.5, 0.5, 0.5, 0.5,
+ 1, 0.5, 0.5, 0.5, 0.5, 0.5,
+ 0.25, 0.5, 0.25, 0.5, 0.25, 0.5,
+ 0.25, 0.5, 1, 0.5, 0.5, 0.5,
+ 0.5, 0.5};
+
+ for (int i = 0; i < 109; i++) {
+ speaker.period(1 / (4*notesCiciban[i]) );
+ speaker = 0.75;
+ wait(speed * beatCiciban[i]);
+ }
+ if (joystickCenter) // press joystick center to stop playing
+ break;
+ }
+}
\ No newline at end of file