Diff: wurlitzer.cpp

Revision:

0:b34f133646a8

diff -r 000000000000 -r b34f133646a8 wurlitzer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wurlitzer.cpp	Fri Oct 02 21:36:39 2015 +0000
@@ -0,0 +1,41 @@
+#include "mbed.h"
+
+PwmOut speaker(PB_4);               // Speaker
+DigitalOut myled(PA_10);
+
+const float scala[38] = { 0.0f, 108.0f, 112.5f, 121.5f, 129.6f, 135.0f, 144.0f, 150.0f, 162.0f, 172.8f, 180.0f, 194.4f, 202.5f,
+                                216.0f, 225.0f, 243.0f, 259.2f, 270.0f, 288.0f, 300.0f, 324.0f, 345.6f, 360.0f, 388.8f, 405.0f,
+                                432.0f, 450.0f, 486.0f, 518.4f, 540.0f, 576.0f, 600.0f, 648.0f, 691.2f, 720.0f, 777.6f, 810.0f,
+                                864.0f };
+
+const uint32_t song[54][2] = { {16, 4}, {18, 4}, {20, 4}, {18, 4}, {16, 2}, { 0, 2}, {16, 4}, {18, 4}, {20, 4}, {18, 4}, {16, 2}, { 0, 2}, {20, 4}, {20, 4}, {21, 4}, {21, 4},
+                               {20, 4}, {20, 4}, {18, 2}, {20, 4}, {20, 4}, {21, 4}, {21, 4}, {20, 4}, {20, 4}, {18, 2}, {20, 4}, {18, 4}, {20, 4}, {21, 4}, {23, 4}, {21, 4},
+                               {20, 4}, {18, 4}, {20, 4}, {18, 4}, {20, 4}, {21, 4}, {23, 4}, {21, 4}, {20, 4}, {18, 4}, {16, 4}, {18, 4}, {20, 4}, {18, 4}, {16, 2}, { 0, 2},
+                               {16, 4}, {18, 4}, {20, 4}, {18, 4}, {16, 2}, { 0, 2} };
+
+
+int main() {
+    float tone;
+    int i;
+    
+    myled = 1;
+
+    for (i = 0; i < 54; i++) {
+        if (song[i][0] > 0.0f) {
+            tone = float(1.0f/scala[song[i][0]]);
+            speaker.period(tone);
+            speaker = 0.5;
+        } else {
+            speaker = 0;
+        }
+        wait(float(1.0f/song[i][1]));
+    }
+    while (1) {
+        myled = 0; // LED is ON
+        wait(0.2); // 200 ms
+        myled = 1; // LED is OFF
+        wait(1.0); // 1 sec
+    }
+
+}
+    
\ No newline at end of file