jim hamblen / Mbed 2 deprecated LED_Searchlight

Demo of LED lighting effects using PWM and wait for time delays. Pins are setup for LPC1768 platform’s LEDs. For complete information, see http://developer.mbed.org/users/4180_1/notebook/led-lighting-effects-for-modelers/

Dependencies:   mbed

Diff: main.cpp

Revision:
0:4420127af442
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Nov 28 18:01:14 2014 +0000
@@ -0,0 +1,19 @@
+#include "mbed.h"
+//LED Lighthouse or Searchlight lighting effect
+PwmOut myled(LED1);
+//use Pwm output for dimming
+
+int main()
+{
+    float y=0.0;
+    while(1) {
+        for(double x=0.0; x <= 3.14159; x = x + 0.0314159) {
+            y = sin(x); //nice periodic function 0..1..0
+            myled = y*y*y;//exponential effect - needs a sharp peak
+            wait(.025);
+        }
+        myled = 0.0;
+        //most lighthouses have a 5 second delay - so add another 2.5
+        wait(2.5);
+    }
+}