Diff: main.cpp

Revision:

0:93063cf1bbc0

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jul 23 08:12:26 2013 +0000
@@ -0,0 +1,32 @@
+#include "mbed.h"
+
+#define BREATHE_PERIOD         4500    // ms
+#define INHALE_PERIOD          (BREATHE_PERIOD / 4)
+#define EXHALE_PERIOD          (BREATHE_PERIOD / 2)
+#define HOLD_PERIOD            (BREATHE_PERIOD / 8)
+
+
+BusOut leds(LED1, LED2, LED3, LED4);
+PwmOut led(P1_14);
+
+int main() {
+    float brightness;
+    
+    while(1) {
+        for (int i = 0; i <= 32; i++) {
+            brightness = i * i / (float)(32 * 32);
+            led = brightness;
+            wait_ms(INHALE_PERIOD / 32);
+        }
+        
+        wait_ms(HOLD_PERIOD);
+        
+        for (int i = 0; i <= 32; i++) {
+            brightness = 1- (i * i / (float)(32 * 32));
+            led = brightness;
+            wait_ms(EXHALE_PERIOD / 32);
+        }
+        
+        wait_ms(HOLD_PERIOD);
+    }
+}