1. Creating the
Internet of Things
with JavaScript
@sh1mmer

6. The rise of the CPU

7. Moore’s Law

11. Rise of the network

12. Neilsen’s Law
of Internet bandwidth

13. source: http://www.useit.com

15. The rise of the battery

16. The rise of the battery

17. Rechargeable Battery Capacity, Wh/Kg
400
New Li Tech
300
200
Li-ion/Poly
NiMH
100
NiCd
0
1970 80 90 2000 10
Sources: The Economist, Avicenne
Dashed lines denotes forecast data

18. Koomey’s Law

20. Processor Network Batteries
Faster Faster
& & Meh.
Cheaper Cheaper

21. Network most drain
CPU 2 nd most drain

22. Cost of power
Server Internet Device Sensors
Amount of Data

23. Sensors 10k /sec
Device 1 /sec
Server 1 /min

24. Hello,
I am a chair.

25. Hello,
I am still a chair.

26. Hello,
I am a chair.

27. Hello,
I’m Chair McClure.
You may remember me from
such slides as “I am a chair”.

28. Minimize amount of data
Maximize usefulness

29. Event Driven Programming

30. object.on('event',
function callback(data){
//stuff
});

32. It got dark in here.

33. Can you turn yourself on please?

34. I turned myself on.

35. Please turn yourself off.

36. It turned myself off.

37. Data in/out
Commands in/out

38. Processing on device reduces
transmitted data by only
sending interesting Events.

39. Events reduce the cost of
listening for commands
on the device

40. JavaScript applications are
dynamic and can be updated
over the network.

41. Easy JavaScript
Internet of Things
for You

42. BeagleBone

43. BeagleBone
• Micro linux
• Ships with
• Node
• Cloud 9 IDE
• APIs to interact with hardware

44. NinjaBlocks

45. NinjaBlocks
• BeagleBone
• Pre-made sensors
• Connects to cloud service

46. Tom Hughes-Croucher
@sh1mmer