IoT One Cloud uses the WiringPi numbering system which is also required to be installed onto your system in order to access GPIO pins. Some distributions have this pre-installed. To find out if it is, run the following command:

gpio -v

If you get an error like this:

-bash: gpio: command not found

Continue with the next steps.

Although this takes a few more steps to compile and install, it’s still fairly easy. From the command prompt, install git-core to your system:

sudo apt-get install git-core

Now use git to obtain the WiringPi source

git clone git://git.drogon.net/wiringPi

This will download the source into the /wiringPi folder. Once it is finished, go into that folder and verify that you have the latest version, and then compile.

cd wiringPi
git pull origin

Once this is done, your required libraries are setup, we recommend a reboot at this time before you begin the next steps.

sudo reboot