File content as of revision 0:54f0e2724f0e:

/**
 * MBC001 - DigitalOut
 * This example use the DigitalOut function
 * 14 May 2018 - Mbed Colombia - http://mbedcolombia.wordpress.com/
 *
 * Board: ST-Nucleo-F446RE - https://os.mbed.com/platforms/ST-Nucleo-F446RE/
 *
 * Copyright [2018] [Leandro Perez Guatibonza / leandropg AT gmail DOT com]
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *    http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#include "mbed.h"

// LED connected Pin PC_0
DigitalOut led(PC_0);

// Main Loop runs in its own thread in the OS
int main() {
   
    // Inifite Loop
    while(1) {
        
        // LED Turn-On
        led = 1;
        
        // Wait 200 ms
        wait(0.2);
        
        // LED Turn-Off
        led = 0;
        
        // Wait 200 ms
        wait(0.2);
    }
}