Simple example. Showcase your RGB-LED using PWM for smooth transitions.

Dependencies:   mbed BLE_API nRF51822

Revision:
0:58d0b9f02eef
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Nov 23 19:47:18 2018 +0000
@@ -0,0 +1,21 @@
+#include "mbed.h"
+#include <cmath>
+
+PwmOut R(LED1);
+PwmOut G(LED2);
+PwmOut B(LED3);
+
+#define PI 3.14159265358979323846
+
+#define MAX(a,b) a>b?a:b
+
+int main() {
+    float t = 0.0;
+    while(1) {
+        t+=0.01;
+        R = MAX(sin(t-0*PI/3),0);
+        G = MAX(sin(t-2*PI/3),0);
+        B = MAX(sin(t-4*PI/3),0);
+        wait(0.01);
+    }
+}