Diff: main.cpp

Revision:

0:8544e0d29036

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Nov 18 17:08:14 2019 +0000
@@ -0,0 +1,84 @@
+#include "mbed.h"
+
+PwmOut speaker(p26);
+AnalogIn pot1(p19);
+AnalogIn pot2(p20);
+InterruptIn joystickCenter(p14);
+Ticker speedster;
+float speed = 0;
+bool zastavica = false;
+
+void setSpeed(){
+    speed = 0.05 + pot1; // minimum wait is 50 ms
+}
+
+void zaustaviPjesmu(){
+    zastavica = true;
+}
+
+int main() {
+    speedster.attach_us(&setSpeed, 1000);
+    joystickCenter.rise(&zaustaviPjesmu);
+    // 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 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(zastavica){
+              speaker = 0;
+              break;
+        }
+    }
+}
\ No newline at end of file