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HelloWorld
by 
Simon Ford
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What it does¶
The most basic "Hello World" program that blinks an on-board LED.
The code is at the bottom of this page.
Similar to mbed_blinky¶
This code is identical to Simon Ford's /teams/mbed/code/mbed_blinky/ except that it contains a few extra comment lines.
Library Information¶
The mbed library used by this code is: /users/mbed_official/code/mbed/rev/093f2bd7b9eb, which is revision 138 of the official mbed 2 library. Revision 138 was released on March 14, 2017. You can see this for yourself by inspecting the contents of the mbed.bld file, which points to the associated mbed library. /users/cputalk/code/HelloWorld/file/1e30337600e4/mbed.bld.
If Your Compile Fails¶
If your compile fails, it's most likely that you are using brand new hardware that was not yet available when revision 138 of the mbed library was released. In that case, update to the latest library.
Updating to the Latest mbed Library¶
In your online compiler, click on "mbed" in your program workspace, as in the picture below:
Then, on the right of your screen, under Library Build Details, click on Update, as seen in the picture below:
Note that the Library Build Details window actually shows the library status as new version available.
I will also attempt to update the mbed library version regularly. The latest update was on 3/23/2017 to revision 138.