Real-World, Open Source, End-to-End JavaScript in IoT Kris Borchers Linux Foundation - Executive Director - JS Foundation

1. Real-World, Open Source,
End-to-End JavaScript in IoT
Kris Borchers
Executive Director – JS Foundation
The Linux Foundation
@the_jsf • @kborchers

3. Our Members

4. Why JavaScript? - Massive Ecosystem
650,000+ packages
~8,000,000 users
Source: npm, Inc – https://npmjs.com and http://blog.npmjs.org/post/143451680695/how-many-npm-users-are-there

5. 69.8% 68.5%
65.1%
57.0%
45.3%
39.8% 38.8%
34.4%
0.0%
10.0%
20.0%
30.0%
40.0%
50.0%
60.0%
70.0%
80.0%
Most Popular Technologies
Why JavaScript? – Popularity / Reach
Source: Stack Overflow 2018 Developer Survey - https://insights.stackoverflow.com/survey/2018

6. 69.8%
45.3%
38.8%
34.4%
25.4%
23.0%
0.0%
10.0%
20.0%
30.0%
40.0%
50.0%
60.0%
70.0%
80.0%
Most Popular Technologies
Why JavaScript? – Popularity / Reach
Source: Stack Overflow 2018 Developer Survey - https://insights.stackoverflow.com/survey/2018

7. Why JavaScript ? - Developer Chasm
Microcontrollers
/
Small Devices
Edge Devices
Server / Cloud /
Client

8. Why JavaScript? - Crossing the Chasm
Microcontrollers
/
Small Devices
Edge Devices
Server / Cloud /
Client

9. JS Foundation in IoT

10. JerryScript is the lightweight JavaScript engine
intended to run on a very constrained devices such
as microcontrollers:
• Only few kilobytes of RAM available to the
engine (<64 KB RAM)
• Constrained ROM space for the code of the
engine (<200 KB ROM)
• Full ECMA 5.1 support with growing optional
support for more advance JavaScript features
The engine supports on-device compilation,
execution and provides access to peripherals from
JavaScript.

11. Fitbit Ionic & Versa
• JavaScript SDK for Fitbit OS built on top of
JerryScript
• Build apps and clock faces with web standards
• JavaScript
• SVG
• CSS
Fitbit and the Fitbit logo are trademarks or registered trademarks of Fitbit, Inc. in the U.S. and other countries.
Additional Fitbit trademarks can be found at www.fitbit.com/legal/trademark-list. Third-party trademarks are the property of their respective owners.

12. Zephyr.js
• JavaScript runtime for the Zephyr RTOS built
on top of JerryScript
• Provides JavaScript APIs for accessing device
peripherals, I/O operations, storage access, etc
• Support for a number of architectures and
development boards

13. Node-RED is a tool for wiring together hardware
devices, APIs and online services in new and
interesting ways.
• Browser-based flow editor for creating flows
and one-click deployment
• Built on Node.js
• Flows can be exported and shared individually
or via flow.nodered.org
• Ships on every Raspberry Pi

14. Opto 22 groov Box
• IoT application builder and operator interface
system for moving data between industrial
equipment, applications, and cloud platforms,
and to visualize that data
• Node-RED provides the “wiring” as well as
secure TLS encrypted communication and
ability to manage/backup data flows, manage
certificates and view diagnostic logs

15. Hitachi Vantara’s
Lumada IoT Platform
• Node-RED is a key feature providing a “low-
code” interface their customers want to enable
them to easily build IoT applications giving
them insight into their IoT data
• Hitachi is creating and contributing new
features to the Node-RED ecosystem including:
• Flow Connection Gateway – which
manages communication between systems
• Automatic generation of Node-RED node
parameters based on API specifications to
accelerate development and time to
market

16. Demo – Serverless serverless
• Goals
• No servers (Raspberry Pi is cheating)
• I cheated a little bit
• Use open source for as much as possible
• Some drivers, etc may not be open source but otherwise
• Open Source Software Used
• JerryScript
• Zephyr.js
• Zephyr RTOS
• Node-RED
• Mosquitto (MQTT Broker)
• Stripped down version of
node_mqtt_client
• Components
• Raspberry Pi
• Running Node-RED for web API
and data flow management
• 6x – NXP FRDM K64F
Development Boards
• Function processing

17. Thank You
https://js.foundation
@the_jsf
@kborchers
linkedin.com/in/kborchers