Very cool... I've been wanting to see Clojure in IoT!


On Monday, July 18, 2016 at 7:16:58 AM UTC-7, Gregg Reynolds wrote:
>
> Hi list,
>
> The competition phase of the Intel Ultimate Coder Challenge for IoT 
> <https://ultimatecoder.intel.com/> drew to a close last Friday. Final 
> reports are now online.
>
> Clojure played a starring role in my project (Team 2), along with Iotivity 
> <https://www.iotivity.org/>.  Briefly, I ported Iotivity to OS X, split 
> out the Java support as a separate project, and got Java over Iotivity 
> running on Ubuntu, OS X, the Intel Edison, and a Dell 3290 IoT Gateway 
> running Wind River Linux.
>
> The end result, which I expect will seem slightly amazing to everybody 
> except Clojure programmers, is that we can now use Clojure to interactively 
> and remotely control Iotivity-enabled IoT devices. Naturally the devices 
> must be able to run the Iotivity stack and a JVM, but that covers a lot of 
> ground. Eventually I expect Clojure's IoT reach will be extended by things 
> like Jerryscript <https://github.com/Samsung/jerryscript>, but for now at 
> least you can get yourself an Edison 
> <http://www.intel.com/content/www/us/en/do-it-yourself/edison.html> (a 
> kit with an Arduino-compatible board will set you back about $70), fire up 
> an nREPL on the thing (caveat: it takes a loooong time to startup), and 
> start building and testing circuits, interactively. It shouldn't be too 
> difficult to do the same on a Raspberry Pi, Beaglebone, or whatever.  And 
> actually you don't need an IoT device; you can just run a couple JVMs on 
> your development machine, one for an Iotivity server and one for an 
> Iotivity client, and write a bit of code to emulate sensors etc.
>
> See the blog entries for Team Two 
> <https://ultimatecoder.intel.com/team-two/>. There are a couple of 
> screencasts there showing how to use Clojure interactively to control the 
> Edison pins using mraa <https://github.com/intel-iot-devkit/mraa>, and 
> how use TinyB <https://github.com/intel-iot-devkit/tinyb> to control the 
> Edison's Bluetooth LE stack to control a TI Sensortag 
> <http://www.ti.com/ww/en/wireless_connectivity/sensortag2015/?INTC=SensorTag&HQS=sensortag>
> .
>
> Source code is at https://github.com/iotk. It's pretty rudimentary but I 
> expect to continue development and add better documentation. A slack team 
> has been set up; join at https://iotivity-slack.herokuapp.com/.  Blogging 
> will be at http://blog.mobileink.com/, announcements tweeted (maybe) by 
> @minkdev.
>
> There is one fly in the ointment: Iotivity discovery operations (which use 
> multicast) work just fine across the network, but CRUDN ops (which use 
> unicast) fail silently.  I discovered this in the last week of the 
> competition. :(  So my next task is to find and squash that bug. If you 
> want to help get in touch or join the slack team.
>
> Have fun,
>
> Gregg
>

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