![Model (III)
.driver_out(function(paramd) {
if (paramd.thingd.on !== undefined) {
paramd.driverd['urn:Belkin:service:basicevent:1'] = {
'SetBinaryState' : {
'BinaryState' : paramd.thingd.on ? 1 : 0
}
}
}
})](https://image.slidesharecdn.com/2014-11iotdbfullstackto-141125045947-conversion-gate02/85/Control-all-the-Things-with-Node-JS-24-320.jpg)
![firmata_cycle
var things = iot
.connect()
.connect({
model: "FirmataNeoPixel",
pin: 6,
n: 16
})
var colors = [ "red", "green", "blue", "white", "black" ];
var ci = 0;
setInterval(function() {
things.set(":color", colors[ci++ % colors.length]);
}, 2500)](https://image.slidesharecdn.com/2014-11iotdbfullstackto-141125045947-conversion-gate02/85/Control-all-the-Things-with-Node-JS-45-320.jpg)
Control all the Things with Node-JS
- 1. IOTDB.org • Control all the Things with Node-JS
- 2. David Janes @dpjanes davidjanes@iotdb.org http://iotdb.org/social/imadeit/ November 2014
- 3. Introduction
- 4. N.B. • Demo example code on github • dpjanes/ • iotdb-examples/ • demos/ • 2014-11-fsto/
- 5. What is it? { "on" : true, "temperature" : 225 }
- 6. What does each field mean?
- 7. Control or Measurement? • Does on mean: • Turn it on? or • Is it on? • Does temperature mean: • Set the temperature? or • What is the temperature?
- 8. Units • What does temperature refer to? • degrees Celsius, Fahrenheit … or Kelvin?
- 9. What does the whole message represent?
- 10. What are we talking about … or with? • An oven? • A toaster? • A sensor in the Large Hadron Collider?
- 11. Solve “the Basket Full of Remotes Apps Problem”
- 13. Solve the N-standards • Open Interconnect Consortium • Thread Group • AllSeen Alliance • HyperCat Consortium • Industrial Internet Consortium • IoT-GSI) from ITU-T • oneM2M • Open Mobile Alliance • Internet of Things (IEE) • IETF • IPSO Alliance
- 14. XKCD
- 15. IOTDB(.org)
- 16. Semantic Vocab • Formal definitions • https://iotdb.org/pub • JSON-LD
- 17. Models • https://iotdb.org/iotdb • https://github.com/dpjanes/iotdb-models
- 18. Node-IOTDB
- 19. IOTDB Stack • Client Program • Node-IOTDB • Models • Drivers • Libraries •simple_on.js •require('iotdb') •WeMoSwitch •iot-driver:upnp •upnplib
- 20. Client Program simple_red iot .connect() .set(':color', 'red');
- 21. require(‘iotdb’) • locates Models, Drivers, Stores,… • loads & maintains user configuration • connects to iotdb.org (sometimes) • manages Things (huge deal … too many things to go into in detail)
- 22. Model (I) • Semantic description of Things • (can be) written in JavaScript • actually compiles to JSON-LD (with some restrained JavaScript) • Node independent!
- 23. Model (II) iotdb.make_model('WeMoSwitch') .facet(":device.switch") .product(“http://www.belkin.com/…”) .name("WeMo Switch") .description("Belkin WeMo Switch") .attribute( iotdb.make_boolean(":on") .name("on / off") .control() )
- 24. Model (III) .driver_out(function(paramd) { if (paramd.thingd.on !== undefined) { paramd.driverd['urn:Belkin:service:basicevent:1'] = { 'SetBinaryState' : { 'BinaryState' : paramd.thingd.on ? 1 : 0 } } } })
- 25. Drivers iot-driver:upnp • Binds Models to the code that actually “does the work” • discovery • static configuration • dynamic / environmental
- 26. Libraries • What developers usually program against • We’ve rewritten a number of libraries to make them more reliable
- 27. Demos
- 28. simple_on things = iot.connect() things.set(':on', true);
- 29. simple_off things = iot.connect() things.set(‘:on’, false);
- 30. simple_model iot .connect(‘HueLight') .set(':on', true);
- 31. Metadata
- 32. Select Things • select Things by (e.g.) • Model • name • number • place • facet
- 33. meta_dump var things = iot.connect(); iot.on_things(function() { console.log(things.metas()); });
- 34. meta_model iot.connect() .with_model("TCPConnectedLight") .set(':on', false)
- 35. meta_name iot .connect() .with_name("Hue Lamp 2") .set(':color', 'purple')
- 36. meta_number iot .connect() .with_number(3) .set(':color', 'cyan')
- 37. meta_place iot .connect() .with_room("David Bedroom") .with_floor("Second Floor") .set(':color', 'green')
- 38. meta_facet iot .connect() .with_facet(":device.lighting") .set(':on', true);
- 39. where does Metadata come from? • Metadata comes from several places • can be altered in code • can be persisted to locally / to disk • can be retrieved from iotdb.org • “inherent” in the Model / Driver
- 40. Events
- 41. two types of events • thing.on(key, callback) • thing.on_change(callback)
- 42. event_brightness var lights = iot.connect() var input = iot.connect({ model: "FirmataInputUnit", pin: 0 }); input.on(":value", function(thing, attribute, value) { lights.set(':brightness', value); })
- 43. event_fob var things = iot.connect(); iot .connect('TIKeyFob') .on('left', function() { things.set(':on', true); }) .on('right', function() { things.set(':on', false); })
- 45. firmata_cycle var things = iot .connect() .connect({ model: "FirmataNeoPixel", pin: 6, n: 16 }) var colors = [ "red", "green", "blue", "white", "black" ]; var ci = 0; setInterval(function() { things.set(":color", colors[ci++ % colors.length]); }, 2500)
- 46. firmata_neopixel var n = 16; var leds = iot.connect({ model: "FirmataNeoPixel", pin: 6, n: n }) var c = new iotdb.libs.Color() var ci = 0; var cf = 0; setInterval(function() { c.set_hsl(cf, 1, 0.5) cf += 0.015; if (cf > 1) cf = 0; leds .with_number(ci++ % n) .set(":color", c.get_hex()) ; }, 50)
- 47. Arduino Models • FirmataChainableLED • FirmataDHT11 • FirmataGroveThermistor • FirmataInputBoolean • FirmataInputUnit • FirmataLightDimmer • FirmataLightSensor • FirmataLightSimple • FirmataMotionSensor • FirmataNeoPixel • FirmataOn • FirmataOutputBoolean
- 48. Stores
- 49. Available Stores • dweet • http • mqtt • phant • pubnub • thingspeak
- 50. store_phant var input = iot.connect('TIKeyFob') var store = iot .store('phant') .track(input) https://data.sparkfun.com/streams/aGNjQK9RwZHgEmx089Lg
- 51. store_mqtt var input = iot.connect({ model: "FirmataInputUnit", pin: 0 }); var store = iot .store('mqtt') .track(input) mqtt.iotdb.org u/dpjanes/#
- 52. Transmogrifiers
- 54. What if we have the wrong thing? • Have Celsius but want Fahrenheit • Want to set brightness but only have color • What if brightness is 0-100 on one device and 0-1 on another • Average data? Max data over time? &c…
- 55. trans_fahrenheit var t_c = iot.connect("FirmataDHT11") t_c.on('temperature', function(thing, attribute, value) { console.log("+ temperature (C)", value) }) var t_f = t_c.transmogrify( iot.transmogrifier(":imperial/fahrenheit")) t_f.on('temperature', function(thing, attribute, value) { console.log("+ temperature (F)", value) })
- 56. warning • transmogrifiers are very much a work in progress! • not even pushed to npm yet
- 57. Takeaways
- 58. IOTDB • Semantic description of how things work
- 59. Node-IOTDB • Powerful language for controlling things • Builds on IOTDB concepts • Strong alpha • Join! Help!
- 60. Modeling { "@context": "./meta-iri.jsonld", "on": true, "temperature": 225 } Note: @context is just one way of doing this!
- 61. N.B. • The data does not have to be JSON! • You don’t need to have IOTDB! • You don’t need to use IOTDB IRIs (but you should) • https://iotdb.org/pub/
- 62. Additional Resources • Many examples + House of Janes https://github.com/dpjanes/iotdb-examples • Getting started https://iotdb.org/docs/node/getting-started • Concepts https://medium.com/@dpjanes
- 63. One last point • Don’t be misled by the simplicity! • I worked backward from “what do I want to do” to get the code • Way more things than I demoed today • I want to work with you!
- 64. Get in touch! David Janes @dpjanes davidjanes@iotdb.org http://iotdb.org/social/imadeit/