Zero Entry Barrier
to Internet of Things
Lauri Svan / SC5 Online
This is where it started
HW hackathon in SC5
Cheap hackable Linux powered devices are everywhere!
So many possibilities with connected devices!
- Smart cameras that can be extended to manipulate images
- Sensor systems that act as and talk to Internet services
- Autonomous robots & control logic
- ... and so much more - anything can be made smarter!
... but writing embedded software isn't fun!
Some of the gadgets can already be controlled with JavaScript
... using your computer; the gadgets don't run JavaScript
saves
JSOS makes your system and
HW accessible by JavaScript
JSOS contents
Work in progress:
- jsos-init: System boot & app life-cycle management
- jsos-hal: JavaScripted device drivers
- jsos-networking: Network (WIFI, USB etc.) management
What we could use directly from upstream:
- Atom and Sublime text for editor (& debugger)
- node.js
- npm package management
- OpenEmbedded for creating device images
What else we could add in distant future:
- jsos-gui: WebKit access using atom-shell or node-webkit
... but does it make any sense?
Remember
Source: Blackduck Knowledge Base
Innovation doesn't live in C or Java anymore.
New development happens in JavaScript
Source: modulecounts.com
npm repository grows faster than the other module repos
JavaScript & V8 isn't that fat!
V8 memory footprint is some 10Mb/instance
This is a problem for running several node.js processes
Remedy: Do the same as Android/Zygote does: Fork the root-level node.js instance; V8 supports it already, node.js could support it if we can patch libev to support forking.
Remember: Android runs Java VM which is equally fat!
JSOS - Where do we stand now?
Still a "crazy idea", but already close to a MVP
Done:
- Board bringup & few image mods on Intel Galileo
- First custom Yocto image with node.js 0.11 and rudimentary jsos-init
- Web site & Github user is up! www.js-os.org
Work in progress:
- jsos-init boots real node.js packages & pulls packages from a custom repo
Todo:
- Pretty much everything else
Contribute and support the cause!
Learning from Zygote: jsos-init
- Kernel passes execution to node.js (replaces SysV init)
- A simple IPC channel between processes (like intents & actions) using what node.js process.fork() provides
- Handle application life-cycle like monit/pm2/forever
- Launch npm packages (with npm start)
Title
JSOS - Zero Entry Barrier to Internet of Things
By laurisvan