jim hamblen
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/
Diff: main.cpp
- Revision:
- 0:71618f1cfb5f
diff -r 000000000000 -r 71618f1cfb5f main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Nov 28 17:58:39 2014 +0000
@@ -0,0 +1,29 @@
+#include "mbed.h"
+//LED emergency vehicle lighting effect
+PwmOut myled(LED1);
+PwmOut myled2(LED4);
+//Use PWM for dimming
+
+int main()
+{
+ while(1) {
+ //flash three times on LED1
+ for(int i=0; i<3; i++) {
+ //ramp up brightness level
+ for(double x = 0.0; x <= 1.0; x = x+0.2) {
+ myled = x*x;
+ wait(.02);
+ }
+ }
+ myled=0.0; //LED1 off
+ //flash three times on LED2
+ for(int i=0; i<3; i++) {
+ //ramp up brightness level
+ for(double x = 0.0; x <= 1.0; x = x+0.2) {
+ myled2 = x*x;
+ wait(.02);
+ }
+ }
+ myled2=0.0; //LED2 off
+ }
+}
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