IoT with JS (?!?!) - A Gentle Introduction to IoT - Joe Karlsson - Byteconf JavaScript 2019

In this talk, we will be getting our hands dirty the Raspberry Pi and Node.js. Together, we will be writing a program to visualize sound levels on the web in real time. With Node on a Raspberry Pi, we will listen to a sound sensor and then send that data to a webpage so we can visualize the data live! Sounds cool right? In this talk, we will cover

- How to setup Node.js on a Raspberry Pi
- Connecting sensors to a Raspberry Pi and reading the inputs with Node.

Transcript

1. @JoeKarlsson1 IoT and JS(?!) A Gentle Introduction to the Internet of Things @JoeKarlsson1
2. @JoeKarlsson1 Joe Karlsson @JOEKARLSSON1 @JOEKARLSSON JOEKARLSSON.COM
3. @JoeKarlsson1 How is this going to work? @JoeKarlsson1
4. @JoeKarlsson1 What the heck is IoT? @JoeKarlsson1
5. @JoeKarlsson1 A network of devices that have an IP address and can communicate with each other over the internet @JoeKarlsson1
6. @JoeKarlsson1 It’s just the internet, but with “things” on it @JoeKarlsson1
7. @JoeKarlsson1 …so what is a “thing?” @JoeKarlsson1
8. @JoeKarlsson1 @JoeKarlsson1
9. @JoeKarlsson1 Smart Home Home Security Smart Appliances Smart Light Bulbs Smart Outlets Nest Thermostat @JoeKarlsson1
10. @JoeKarlsson1 Automated Manufacturing Humidity Sensor Motion Sensor Remote Monitoring Smart Delivery Temperature Sensor @JoeKarlsson1
11. @JoeKarlsson1 Wearables Smart Water Bottle Fitbit Breathing Sensor Smart Running Shoes Lumo Run Shorts @JoeKarlsson1
12. @JoeKarlsson1 @JoeKarlsson1
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14. @JoeKarlsson1 IoT
 Lifecycle Collect Communicate Analyze Act @JoeKarlsson1
15. @JoeKarlsson1 A company is an association or collection of individuals, whether natural persons, legal persons, or a mixture of both. Company members share a common purpose and unite in order to focus their various talents and organize their collectively available skills or resources to achieve specific, declared goals. Collect Devices and sensors collect data @JoeKarlsson1
16. @JoeKarlsson1 A company is an association or collection of individuals, whether natural persons, legal persons, or a mixture of both. Company members share a common purpose and unite in order to focus their various talents and organize their collectively available skills or resources to achieve specific, declared goals. Communicate Data and events sent through the network Data Center The Cloud Home Router @JoeKarlsson1
17. @JoeKarlsson1 A company is an association or collection of individuals, whether natural persons, legal persons, or a mixture of both. Company members share a common purpose and unite in order to focus their various talents and organize their collectively available skills or resources to achieve specific, declared goals. Analyze Computers analyzes the incoming data Run Reports Home Router Machine Learning View Reports @JoeKarlsson1
18. @JoeKarlsson1 A company is an association or collection of individuals, whether natural persons, legal persons, or a mixture of both. Company members share a common purpose and unite in order to focus their various talents and organize their collectively available skills or resources to achieve specific, declared goals. Act Taking action based on the data Send a notification Communicate with
 another machine Stream @JoeKarlsson1
19. @JoeKarlsson1 Why does IoT Matter? Source: https://www.statista.com/statistics/471264/iot-number-of-connected-devices-worldwide/ @JoeKarlsson1
20. @JoeKarlsson1 IoT + JS(?!) @JoeKarlsson1
21. @JoeKarlsson1 JS is a great choice for new devs Other low level programming languages can be difficult to develop @JoeKarlsson1
22. @JoeKarlsson1 Why Node? 58 percent of respondents that identified as IoT developers use Node Source: https://nodejs.org/en/blog/announcements/nodejs-foundation-survey/ @JoeKarlsson1
23. @JoeKarlsson1 Easy to update over a network @JoeKarlsson1
24. @JoeKarlsson1 The internet already speaks JS @JoeKarlsson1
25. @JoeKarlsson1 Tons of existing libraries, plugins and APIs @JoeKarlsson1
26. @JoeKarlsson1 Cylon.js Johnny-Five https://cylonjs.com/ http://johnny-five.io/ @JoeKarlsson1
27. @JoeKarlsson1 JS is great at handling event-driven apps @JoeKarlsson1
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30. @JoeKarlsson1 It got dark in here @JoeKarlsson1
31. @JoeKarlsson1 Can you turn yourself on? @JoeKarlsson1
32. @JoeKarlsson1 I turned myself on @JoeKarlsson1
33. @JoeKarlsson1 plz turn yourself off @JoeKarlsson1
34. @JoeKarlsson1 I turned myself off @JoeKarlsson1
35. @JoeKarlsson1 Events reduce the cost of listening for the device @JoeKarlsson1
36. @JoeKarlsson1 Let’s jump into something practical @JoeKarlsson1
37. @JoeKarlsson1 IoT Morse Code Machine The future of Morse Code
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39. @JoeKarlsson1 1 x Raspberry Pi 3 Model B 1 x Breadboard 1 x 68 Ohms Resistor What Materials Do We Need? 1 x LED 2 x Female to Male Wires
40. @JoeKarlsson1 Raspberry Pi @JoeKarlsson1
41. @JoeKarlsson1 Small and amazingly capable, credit card size $35 computer @JoeKarlsson1
42. @JoeKarlsson1 Install Node on your Pi Find tips here: https://www.losant.com/blog/how-to-install-nodejs-on-raspberry-pi @JoeKarlsson1
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44. @JoeKarlsson1 General Purpose Input/Output Pins [GPIO] Can be used to interact in with the real world @JoeKarlsson1
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46. @JoeKarlsson1 Output Pins Switches that the Raspberry Pi can turn on or off @JoeKarlsson1
47. @JoeKarlsson1 Input Pins Switches that you can turn on or off from the outside world @JoeKarlsson1
48. @JoeKarlsson1 Great Overview of the GPIO Pins on Wikipedia @JoeKarlsson1 Source: https://en.wikipedia.org/wiki/Raspberry_Pi#General_purpose_input-output_(GPIO)_connector
49. @JoeKarlsson1 @JoeKarlsson1
50. @JoeKarlsson1 onoff npm package for interacting with GPIO @JoeKarlsson1
51. @JoeKarlsson1 Breadboard A breadboard is used for prototyping electronics @JoeKarlsson1
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55. @JoeKarlsson1 LED Resistors Resistors are used to reduce current, adjust signal levels, etc. A diode that emits light when a voltage is applied to it. @JoeKarlsson1
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58. @JoeKarlsson1 Building a circuit @JoeKarlsson1
59. @JoeKarlsson1 @JoeKarlsson1 Code: https://github.com/JoeKarlsson/IoT-Morse-Code-Demo
60. @JoeKarlsson1 @JoeKarlsson1
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64. @JoeKarlsson1 IoT Morse Code Machine
65. @JoeKarlsson1 Smaller and more powerful devices \ Better Hardware support JS with a smaller footprint Batteries will become the bottleneck The Future of JS + IoT? @JoeKarlsson1
66. @JoeKarlsson1 Do you want to be an IoT and JS master? @JoeKarlsson1
67. @JoeKarlsson1 Just do it! @JoeKarlsson1
68. @JoeKarlsson1 Magic Mirror @JoeKarlsson1
69. @JoeKarlsson1 IoT is exploding Raspberry Pi’s use GPIO to interact with the real world JS is a great choice for IoT Easy to update apps Internet already speaks JS Great supporting libraries JS excels at event-driven apps Start with a small project and jump in and learn as you go!
70. @JoeKarlsson1 Questions? @JoeKarlsson1
71. @JoeKarlsson1 Thank You! @JoeKarlsson1
72. @JoeKarlsson1 Let’s Stay In Touch @JOEKARLSSON1 @JOEKARLSSON JOEKARLSSON.COM
73. @JoeKarlsson1 •Code - https://github.com/JoeKarlsson/IoT-Morse-Code-Demo •Programming the Internet of Things Using Node.js* and HTML5 (PDF) - 6/23/2015 •Losant: Node.js and The Internet of Things - 1/30/2016 •Embedded JavaScript, HTML5 and the Internet of Things - Jesse Cravens •Creating the Internet of Things with JavaScript - Tom Hughes-Croucher •A language for the Internet: Why JavaScript and Node.js is right for Internet Applications - Tom Hughes-Croucher •Video: Realtime Hardware with Node.js - Emily Rose •Getting Physical: Networked Hardware with Node.js - Ted Hayes •Video: My Sensors Love Node.js - Ward Cunningham •How To Electrocute Yourself using the Internet - Alexander Roche A talk about the Internet of things, Arduino and JavaScript frameworks including BreakoutJS and Johnny-Five •An Internet Of Things System – How To Build It Faster - Matteo Collina •Hardware Hacking With JavaScript - Feb 26th •HTML5 Powered Internet Of Things Products - Clickside - 10/21/2014 Additional Resources @JoeKarlsson1
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