mbed-os-examples / Mbed OS mbed-os-example-mbed5-blinky Featured

This is a very simple guide, reviewing the steps required to get Blinky working on an Mbed OS platform.

Mbed OS Blinky

This example shows the use of a DigitalOut object to represent an LED and use of the nonblocking Thread::wait() call. Using nonblocking calls is good practice because Mbed OS can schedule and run other threads while the first thread is waiting.

Building this example

Building with Arm Mbed CLI

To use Mbed CLI to build this example, follow the instructions in the documentation. The instructions here relate to using the Arm Online Compiler.

To use the Online Compiler, import this code into the Online Compiler, and select your platform from the top right. Compile the code using the compile button, load it onto your board and press the reset button on the board. The code will run on the board, and you will see the LED blink.

You can find more instructions for using the Mbed Online Compiler in the documentation.

main.cpp@29:0b58d21e87d6, 2017-03-05 (annotated)

Committer:
mbed_official
Date:
Sun Mar 05 20:30:02 2017 +0000
Revision:
29:0b58d21e87d6
Parent:
22:af9dcf379926
Child:
82:abf1b1785bd7
Merge pull request #48 from janjongboom/patch-1



Remove the note about wait

.

Commit copied from https://github.com/ARMmbed/mbed-os-example-blinky

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jonathan Austin 0:2757d7abb7d9 1 #include "mbed.h"
Jonathan Austin 0:2757d7abb7d9 2
Jonathan Austin 0:2757d7abb7d9 3 DigitalOut led1(LED1);
Jonathan Austin 0:2757d7abb7d9 4
Jonathan Austin 1:846c97078558 5 // main() runs in its own thread in the OS
Jonathan Austin 0:2757d7abb7d9 6 int main() {
Jonathan Austin 0:2757d7abb7d9 7 while (true) {
Jonathan Austin 0:2757d7abb7d9 8 led1 = !led1;
mbed_official 22:af9dcf379926 9 wait(0.5);
Jonathan Austin 0:2757d7abb7d9 10 }
Jonathan Austin 0:2757d7abb7d9 11 }
Jonathan Austin 1:846c97078558 12