This is a basic example with the ST Nucleo F334R8 board, this uses the mbed online compiler.
In this example we flash the red, green and blue colours of an RGB led . Our RGB LED was a common anode type, so a low output switches the LED on and a high output switches the LED off.
Code
#include "mbed.h"
DigitalOut red(D5);
DigitalOut blue(D8);
DigitalOut green(D9);
int main()
{
while(1)
{
red = 0; //red on
wait(1.0); // 1 sec
red = 1; //red off
green = 0; //green on
wait(1.0); // 1 sec
green = 1; //green off
blue = 0; //blue on
wait(1.0); // 1 sec
blue = 1; // blue off
}
}