Diff: rgb_led.cpp

Revision:

23:4bb74b53e112

Child:

24:52319c0a14b8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rgb_led.cpp	Fri Jan 29 20:22:02 2016 +0000
@@ -0,0 +1,117 @@
+#include "rgb_led.h"
+
+
+void Rgb::randomize_params()
+{
+    float rand_seed = t.read();
+    pc.printf("%f\n\r", rand_seed);
+    int rand_int = t.read() * 7919;
+
+    time_t seconds = time(NULL);
+    pc.printf("Time as seconds since January 1, 1970 = %d\n\r", seconds);
+
+    srand(rand_int);
+    pc.printf("A random %d\r\n", rand() );
+
+    // generate random values in 0.0 - 1.0
+    uint8_t blah;
+    for (int j = 0; j < 3; j++){
+        srand(rand_int+j);
+        blah = rand();
+        SCALE[j] = (float) blah;
+        SCALE[j] /= (float) 0xff;
+        SCALE[j] = SCALE[j]*HPI + 1;
+        pc.printf("scale %d, %f\n\r", i, SCALE[i]);
+        srand(blah+j % 17 + 7);
+        blah = rand();
+        WAIT[j] = (float) blah;
+        WAIT[j] /= (float) 0xff;
+        WAIT[j] *= HPI;
+        pc.printf("wait %d, %f\n\r", i, WAIT[i]);
+    }
+    rgb = 0x0;
+    printf("Params Initialized\r\n");
+}
+
+void Rgb::update_rgb_values ()
+{
+//        printf("Updating RGB values...\r\n");
+    for (i=0; i<3; i++) {
+        if (!(rgb & (0x1 << i) )) {
+            if ( in > WAIT[i]) {
+//                    printf("%d, %d, result: %d\r\n", rgb, (0x1 << i), (!(rgb & (0x1 << i)) ) );
+                rgb_c[i] = -cos((in - WAIT[i])*SCALE[i]) + 1;
+            } else {
+                rgb_c[i] = 0.0;
+            }
+        } else
+            rgb_c[i] = 0.0;
+        pc.printf("%f\t",rgb_c[i]);
+    }
+    pc.printf("\n\r");
+//        exit(0);
+}
+
+void Rgb::write_rgb ()
+{
+    red.write(rgb_c[0]/2.0);
+    green.write(rgb_c[1]/2.0);
+    blue.write(rgb_c[2]/2.0);
+}
+
+//public:
+
+void Rgb::show()
+{
+    pc.printf("show\r\n");
+    // randomize the delay and scale values
+    randomize_params();
+    printf("params initialized:\n\r");
+    printf("WAIT:\t%f\t%f\t%f\n\r", WAIT[0], WAIT[1], WAIT[2]);
+    printf("SCALE:\t%f\t%f\t%f\n\r", SCALE[0], SCALE[1], SCALE[2]);
+    for (in = 0; in < hysteresis || rgb != 0x7; in = in + INCREMENT) {
+#ifdef MKIT
+        bool mov = motion;
+#else
+        bool mov = !motion;
+#endif
+        if (mov) {
+            hysteresis = in + HYSTERESIS_QUANTITY;
+        }
+
+        // update rgb
+        update_rgb_values();
+
+        // write values
+        write_rgb();
+
+
+        if (in > hysteresis) {
+            if (rgb_c[0] < 0.01)
+                rgb |= 0x1;
+            if (rgb_c[1] < 0.01)
+                rgb |= 0x2;
+            if (rgb_c[2] < 0.01)
+                rgb |= 0x4;
+        }
+
+    }
+}
+};
+
+
+void channel_check()
+{
+
+    red.write(1.0f);
+    wait(.5);
+    red.write(0.0f);
+
+    green.write(1.0f);
+    wait(.5);
+    green.write(0.0f);
+
+    blue.write(1.0f);
+    wait(.5);
+    blue.write(0.0f);
+}
\ No newline at end of file