Sunday, January 11, 2015

OpenDaylight Helium on Intel Edison!

Edison mounted on mini breakout board.
Canadian Quarter for Scale.
How small a physical device can you get OpenDaylight running upon? Well so far the answer is the Intel Edison.

If your not familiar with the Edison, its a system on module device containing a dual core Intel Atom CPU (32bit @ 500 Mhz), 1 GB of LPDDR3 RAM, 4 GB of eMMC flash storage, and built-in wifi. At 35.5 x 25 x 3.9 mm it is arguably one of the smallest machines I've seen run an Apache Karaf based system.

My build utilizes a Yocto Linux OS build for Edison, and a standard 32 bit Oracle JDK 1.7.0 installation. Downing loading utilities onto the Edison was a small challenge in that the version of wget that ships with Yocto does not support https, to get around this I used SCP to copy files over to the device.

Out of the box I only had to make one customization to the OpenDaylight setenv script:
  • The set environment script (setenv) had JVM parameters for PermGen and Max Memory set higher than the Edison could support. I set these values to 340MB for PermGen, and 756MB for Max Memory. These are not optimal settings, but will work well enough to get things going.
After OpenDaylight had displayed the console banner, I executed the console info command to see system environment information:
OpenDaylight Banner and info command output
Sweet! OpenDaylight has booted, and the CLI is responsive!

Now to verify the installation is running correctly, I started up the OpenDaylight Toaster demo.
Log Display Output
I used jmxterm to manipulate the makeToast and clearToastsMade operations exposed via JMX on the controller to verify their correct operation - using log:display I could view each operation's logging events.
Edison CPU Info

I've posted to my github page my notes and files for getting OpenDaylight Helium running on Intel Edison. I'm looking forward to seeing what the community makes on the platform.

Links for further reading:

Intel Edison - One Tiny Platform, Endless Possibility:

Edison IoT module ships with Atom plus Quark Combo SOC:


Apache Karaf: