![](/media/cache/group/TVZ_logotip.png.50x50_q85.jpg)
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