Day-to-day JET practicalities
Feb 10, 2016

Here’s a “JET” engine, for your amusement:

This week, I’m going to go into the practical aspects of the JET project: for production, i.e. the always-running hub + MQTT server, and for development, i.e. what is needed to work on this software and take it further.

As you’ll see, these end up at two extremes of the spectrum: a tiny setup with minimal dependencies is enough for production, whereas development requires a slew of tools (albeit standard and well-supported), and a hefty machine if you want a snappy development cycle.

But first, I’ll revisit the redesigned JET data store, and its new - improved! - API:

All these aspects are still evolving and in flux, but hey… ya’ gotta start somewhere!

Latest hub v4.0-66 builds now on GitHub.

For comments, visit the forum.

Let's talk about the 'N' in WSNs
Feb 3, 2016

The acronym “WSN” stands for Wireless Sensor Network. Ok sure, we all have one or more wireless sensor nodes, JeeNodes or whatever, and they probably work nicely. But how do we manage them? What about code revisions?

Let’s go into this for a moment. Because the usual approach of: “a sketch, an upload, and off you go” doesn’t really scale well. How do you manage all those nodes, which may be different in functionality, in their hardware, or even just be different models or revisions of the same type?

But first, I’ll start off this week with a note about running the hub in the background:

And just to keep a clear model of the hub’s main role in front of you, here’s the diagram from last week’s configuration guide again:

Latest hub v4.0-45 builds now on GitHub.

For comments, visit the forum.

What's in a hub?
Jan 27, 2016

The restart of the JET project is progressing nicely. This week’s episode is about installing a first version as a basic-yet-functional new core system and describing / documenting some of the central features being built into the hub.

So here goes, one story per day, about what JET/Hub is all about:

Yes, that’s a lot of articles for one week. Because there’s a lot to describe!

Here’s another little diagram, this one is from 2014 - even older than last week’s:

And yet it’s still mostly applicable to JET …

For comments, visit the forum.

Weblog © Jean-Claude Wippler. Generated by Hugo.