File content as of revision 0:c606bb1acbdc:

#include "mbed.h"

// a flashlight with 4 Leds like the KID in Nightrider

PwmOut led_1(LED1);
PwmOut led_2(LED2);
PwmOut led_3(LED3);
PwmOut led_4(LED4);

int main() {

float
q;

    while(1) {
        for(float p = 0.0f; p < 4.0f; p += 0.1f) {
            led_1 = p;
            led_2 = p-1.0;
            led_3 = p-2.0;
            led_4 = p-3.0;
            wait(0.01);
        }
        for(float p = 4.0f; p > 0.0f; p -= 0.1f) {
            led_4 = p;
            led_3 = p-1.0;
            led_2 = p-2.0;
            led_1 = p-3.0;
            wait(0.01);
        }
        for(float p = 0.0f; p < 4.0f; p += 0.1f) {
            led_4 = p;
            led_3 = p-1.0;
            led_2 = p-2.0;
            led_1 = p-3.0;
            wait(0.01);
        }
        for(float p = 4.0f; p > 0.0f; p -= 0.1f) {
            led_1 = p;
            led_2 = p-1.0;
            led_3 = p-2.0;
            led_4 = p-3.0;
            wait(0.01);
        }
    }
}