The Cuddly Throwable Application Server

@holly_cummins ?

@holly_cummins

@holly_cummins What is the Bluemix Garage? (It’s not actually a
Garage.)

@holly_cummins

@holly_cummins http://ibm.biz/ bluemixgaragelondon

@holly_cummins “Computers in the future may weigh no more than
1.5 tons.” - Popular Mechanics, 1949

@holly_cummins “I think there is a world market for maybe
five computers.” — Thomas Watson, chairman of IBM 1943

@holly_cummins Then: HARDware

@holly_cummins Now: Everyware

@holly_cummins Next: Connected-ware

@holly_cummins Why care about the Internet of Things?

@holly_cummins Why care about the Internet of Things? This could
really beneﬁt my business

@holly_cummins Why care about the Internet of Things? This could
really beneﬁt my business This is so FUN and COOL and OOH I made it LIGHT UP!”

@holly_cummins Poll-time.

@holly_cummins

@holly_cummins +

@holly_cummins It was cool. But it couldn’t move around much.

@holly_cummins pcDuino

@holly_cummins pcDuino £60

@holly_cummins pcDuino £60 Dual-core CPU 4 GB ﬂash storage 1
GB RAM “Arduino-ish” pins Wi-ﬁ Battery connector

@holly_cummins embedded application server Sensors Liberty Architecture

@holly_cummins A bit of textile engineering.

@holly_cummins A bit more textile engineering.

@holly_cummins Ta-daa!

@holly_cummins Ta-daa! Presenting: The WebSphere Sphere

@holly_cummins Ta-daa! Presenting: The WebSphere Sphere (“the cuddly application server”)

@holly_cummins Ta-daa! Presenting: The WebSphere Sphere (“the cuddly application server”)
(“the world’s ﬁrst throwable application server”)

@holly_cummins

@holly_cummins Throwable technology. Not so silly after all.

@holly_cummins Remind you of anything?

@holly_cummins Not really. It’s very lumpy, isn’t it?

@holly_cummins It’s a computer case

@holly_cummins Interfacing the ball to the computer LED sequins

@holly_cummins Soft circuits

@holly_cummins Soft circuits Conductive thread

@holly_cummins Soft circuits £6.78 Conductive thread

@holly_cummins Soft circuits £6.78 Conductive thread Stainless steel

@holly_cummins Soft circuits £6.78 Conductive thread Solderable Stainless steel

@holly_cummins Soft circuits £6.78 Conductive thread Solderable Sewable Stainless steel

@holly_cummins http://pcduino.local

@holly_cummins –My Mother “Holly, why would anyone want an application
server in a cuddly ball?”

@holly_cummins Who wouldn’t want an application server in a cuddly
ball?

@holly_cummins So … did it work?

@holly_cummins So … did it work? pcDuino could never display
on any monitor.

@holly_cummins … and then what happened?

@holly_cummins … and then what happened? Wires snapped. Many times.

@holly_cummins … and then what happened? Wires snapped. Many times.
Inside a unit that had to be disassembled before any repair could be done.

@holly_cummins … and then what happened? • Connectors are not
as easy as one might hope

as easy as one might hope PcDuino battery interface

as easy as one might hope Popular embeddable battery PcDuino battery interface

as easy as one might hope Popular embeddable battery PcDuino battery interface JST-PH

as easy as one might hope Popular embeddable battery PcDuino battery interface JST-PH JST-SH

@holly_cummins “The board features a difficult-to-get JST-SH connector. You won't
find a battery with a ready-made five-pin JST-SH connector. ” http://wt.tuxomania.net

@holly_cummins “The board features a difficult-to-get JST-SH connector. You won't
find a battery with a ready-made five-pin JST-SH connector. ” http://wt.tuxomania.net !&!^@*!

@holly_cummins It’s ok! I wired in a battery.

@holly_cummins … and then what happened? LiPoly battery. Standard 3.3V
output.

@holly_cummins … and then what happened? Battery voltage isn’t enough
for LEDs. Or sensors. LiPoly battery. Standard 3.3V output.

@holly_cummins

@holly_cummins It’s ok! I used a USB battery.

@holly_cummins It’s ok! I used a USB battery. Un-covered metal
batteries short pins.

@holly_cummins It’s ok! I added a sock.

@holly_cummins It’s ok! I added a sock. Child will never
miss it.

I’ve fixed this for you.

S I’ve fixed this for you.

@holly_cummins A USB power connector lived here … and then
what happened?

@holly_cummins … and then what happened? Another USB power connector
lived here

@holly_cummins … and then what happened? What does that mean
in practice?

@holly_cummins … and then what happened? What does that mean
in practice? Normally, 0 = bounce. With insufficient voltage, pin is always 0.

@holly_cummins … and then what happened? So it infinitely …
oh. Oh dear.

@holly_cummins … and then what happened? Motion sensor started smoking,
stopped working. Had to buy a new one.

@holly_cummins pcDuino stopped working. Had to buy a new one
:( … and then what happened?

@holly_cummins –My mother “Holly, I saw a video of your
sphere talk. I thought you handled the fact that the demo failed really well. Are there any videos where it actually works?”

@holly_cummins … and then what happened? It worked faultlessly. Twice
in a row.

@holly_cummins pcDuino useful stuff The physical world …

@holly_cummins pcDuino useful stuff The physical world … bulky protective
padding

@holly_cummins pcDuino useful stuff … doesn’t fit in hand-luggage. The
physical world … bulky protective padding

@holly_cummins … and then what happened? Not supposed to look
like that.

@holly_cummins … and then what happened? Pin on power board
snapped. Remnants of pin in PCB hole. Not supposed to look like that.

@holly_cummins Solder burns on kitchen counter. … and then what
happened?

@holly_cummins … and then what happened? No power to pcDuino.

@holly_cummins … and then what happened? It’s ok! I bought
a better powerboost.

@holly_cummins … and then what happened? No power to pcDuino.
Still.

@holly_cummins … and then what happened? There’s actually a hole
in the battery under all that tape.

@holly_cummins What could possibly go wrong with a damaged LiPo
battery?

@holly_cummins It’s ok! I bought a new battery. (and the
damaged one isn’t in my house anymore)

@holly_cummins It’s ok! I bought a new battery. (and the
damaged one isn’t in my house anymore) It’s ok! I bought two new batteries.

@holly_cummins - My partner “Holly, I keep telling you you
should refuse to do this talk anymore.”

@holly_cummins - My partner “Holly, I keep telling you you
should refuse to do this talk anymore.” (I didn’t even tell him about the exploding batteries.)

@holly_cummins IoT development checklist

@holly_cummins Look before you leap. IoT development checklist

@holly_cummins Look before you leap. You will need: IoT development
checklist

@holly_cummins Look before you leap. You will need: • Spare
money IoT development checklist

money • A lot of time IoT development checklist

money • A lot of time • A high tolerance for stress IoT development checklist

@holly_cummins –Thomas Edison I have not failed. I've just found
10,000 ways that won't work.

@holly_cummins But … what does it all mean?

http://www.commitstrip.com/en/2016/05/26/the-internet-of-things-a-revolution/

@holly_cummins This is important.

@holly_cummins This is important-ish.

@holly_cummins

@holly_cummins Single-board computers are an amazing revolution.

@holly_cummins Single-board computers are an amazing revolution. Application servers are
lighter than you think.

@holly_cummins Single-board computers are an amazing revolution. Application servers are
lighter than you think. Java EE is really handy.

@holly_cummins

@holly_cummins WebSphere Liberty installs only the Java EE features needed.

For my application, that’s a lot of features.

For my application, that’s a lot of features. (I used a lot of programming models. )

@holly_cummins

@holly_cummins But is it IoT?

@holly_cummins embedded application server Sensors Liberty Architecture

@holly_cummins

@holly_cummins Thing

@holly_cummins Embedded thing

@holly_cummins Very very embedded thing

@holly_cummins Very very embedded thing Network, but not internet

@holly_cummins

@holly_cummins No machine-to-machine

@holly_cummins Sensors

@holly_cummins http://sphere.mybluemix.net/

@holly_cummins Bluemix and IoT

@holly_cummins // parse VCAP_SERVICES String VCAP_SERVICES = System.getenv("VCAP_SERVICES"); JSONObject vcap
= new JSONObject(VCAP_SERVICES); JSONArray json = vcap.getJSONArray("iotf-service"); JSONObject credentials = json.getJSONObject(0).getJSONObject("credentials"); String host = (String) credentials.get("mqtt_host"); Integer port = (Integer) credentials.get("mqtt_u_port"); … MqttClient client = new MqttClient(uri, id); MqttConnectOptions opts = new MqttConnectOptions(); opts.setUserName(username); opts.setPassword(password.toCharArray()); client.connect(opts); client.setCallback(this); client.subscribe("iot-2/type/+/id/+/evt/+/fmt/+"); Everything is a service (12-factor style)

@holly_cummins www.wasdev.net Any questions? www.wasdev.net ibm.biz/bluemixgaragelondon https://github.com/holly-cummins/throwable-application-server @holly_cummins

The Cuddly Throwable Application Server

The Cuddly Throwable Application Server

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