Web Applications can control the world

1. Web Applications That
Can Control The World
SETH ENGEN

2. ‣Computer Know How
‣Two decades developing
‣Electronics!
Me…

4. IoT…By The Numbers
2020 = 26 billion connected devices5 billion connected things this year2008 more OBJECTS than PEOPLE

5. ‣Company, project, and community
‣Open-source software / hardware
‣Microcontroller-based kits
Arduino

6. Building Blocks

7. Arduino Software (IDE)

8. Serial Monitor

9. ‣WiFi
‣Microcontroller
‣Firmware
ESP8266

10. ‣WiFi
‣Microcontroller
‣Firmware
‣USB-to-Serial
ESP8266 Thing Dev

11. ‣Temperature
‣Humidity
‣2 second readings
DHT22

12. ‣Up to 120VAC / 15A
‣Simple
‣Safe
PowerSwitch Tail II

13. ‣RESTful framework for Arduino
‣Marco Schwartz
‣arest.io and openhomeautomation.net
aRest

14. aRest: Interaction
//command
192.168.1.101/digital/6/0
//response
{
"message": "Pin D6 set to 1",
"id": "1",
"name": "esp8266",
"connected": true
}

15. ‣digitalWrite(), digitalRead()
‣analogWrite(), analogRead()
‣pinMode()
‣getVariable(), callFunction()
aRest Functions

19. Demo
CommandBox:
coldbox create app --installcoldbox
server start

20. ‣Static IP / Dynamic IP
‣Dynamic DNS Services
‣Port Forwarding
Router Setup

21. Port Forwarding

22. Network Communication
Internet
Router
Incoming: 11.12.13.14:9999
Outgoing: 192.168.1.7
arduino.local
or
something.com
http://11.12.13.14:9999/digital/7/1

23. ‣REST Security
‣Home Automation Hub
Security Considerations

24. ‣REST versus MQTT/PubSub
What’s Next

25. ‣Garage Door
‣Chest Freezer
‣Thermostat Integration
‣Power Monitoring
Project Ideas

26. ‣github.com/marcoschwartz/aREST
‣arest.io
‣github.com/marcoschwartz/aREST.js
‣openhomeautomation.net
‣github.com/engens
Resources

27. var speaker = {
name = 'Seth Engen',
company = 'Computer Know How',
email = 'engens@compknowhow.com',
twitter = '@engens',
skype = 'seth.engen',
github = 'engens',
facebook = 'sethengen',
website = 'compknowhow.com',
blog = 'compknowhow.com/blog'
}
Thank you!