Internet of Things Magic Show

Internet of Things Magic Show

Stephen Chin (@steveonjava)Java Technology EvangelistJavaOne Conference Chair

Angela Caicedo (@acaicedo)Java Technology Evangelist

World Population 6.3 Billion 6.8 Billion 7.2 Billion 7.6 Billion

500 Million 12.5 Billion 25 Billion 50 Billion

Connected Devices per Person

0.08 1.84 6.583.47

2003 2010 20202015

Source: Cisco

3x 5x1x

Connected Devices

From…

Things Connected to the Internet

www.

To…

The Internetof Things

Java and 3G in a Tiny Package

• Cinterion EHS5

Really Tiny…

27.6mm

18

.8m

m

http://upload.wikimedia.org/wikipedia/commons/3/3d/Cloud_forest_Ecuador.jpg

Java SE 7

Last Year

APIs Language

Java SE 7

CDC 1.1

CDC 1.1(based on SE 1.4.2)

CLDC 1.1(based on SE 1.3)

CLDC 1.1

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Java SE 8Java SE 8

Java ME 8

Java 8 availability

Java ME 8

APIs Language

9

More Information

iotcommunity.netoracle.com/goto/javaembedded

oracle.com/iot

Twitter Facebook Java Blog LinkedIn YouTube

@Java Embedded blogs.oracle.com/java Embedded Java Developers Network

ILoveJava YouTube Java Channel

What is Magic?

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12https://www.flickr.com/photos/pasukaru76/5944308910/

13https://www.flickr.com/photos/blackzack00/15350928735/

14https://www.flickr.com/photos/kwl/4743024076/

15https://www.flickr.com/photos/kthai/4755380370/

Now it is time for real magic!

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Trick 1:

Mind Reading

Copyright © 2014, Oracle and/or its affiliates. All rights reserved. 18

SENSORS


MY VISION

The Jacket


INGREDIENTS

Conductive Thread Fabric Ribbon 4-Channel

The Ingredients: Hardware

Raspberry Pi B+ Woven Conductive Fabric

Pressure-Sensitive Conductice Sheet

LEDs LilyPad Vibe Board

The Ingredients: Hardware

Polar Heart Rate ReceiverPolar T34 Heart Rate Transmitter

NTSC/PAL Video Glasses

PN532 NFC/RFID controller breakout board

GPSADC1015

MPR121Capacitive Touch Sensors

Now, The Real HardwareI bet there is at LEAST one you have never used it before….


RFID ENABLED

RFID readerRadio-Frequency Identification

How does it work?

RFID transmitter

PN532 NFC/RFID controller breakout board

Raspberry Pi B+

JavaFX UI

Magnetic Field

Serial Communicationfinal Serial serial = SerialFactory.createInstance();

try {serial.open("/dev/ttyAMA0", 115200);serial.write(wakeUP);for (int i = 0; i < SAMConfiguration.length; i++) {

System.out.printf("%02X ", SAMConfiguration[i]);}serial.write(SAMConfiguration);...

for (;;) {try {

Thread.sleep(1000);serial.write(poll);

} catch (InterruptedException ex) {...}}

} catch (Exception e) {...} finally {serial.close();}

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Listening for cardsserial.addListener(event -> {

try {String data = event.getData();StringBuilder buffer = new StringBuilder();byte[] array = data.getBytes("UTF-16");String outStr = "";if (array.length >= ENOUGH_DATA) {

for (int i = (array.length - POS_ID); i < array.length; i++) {outStr += String.format("%02X", array[i]);

}findCard(outStr);

}serial.write(ack);

} catch (UnsupportedEncodingException ex) {System.out.println("Error: " + ex);

}});

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FEEDBACK

Feedback Required

1

2

3

4

Did the menu pick up my selection

Is something happening or should I click again

Simple but concrete feedback

Easy to implement, simple GPIO

Useful but not enough5

Display

Assembling the Display

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Trick 2:

Lightning Reflexes

Up-Up-Down-Down-Left-Right-Left-Right B, A, Start

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Meet Mr. Grabby

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https://www.flickr.com/photos/pasukaru76/8278458818/https://www.flickr.com/photos/fallentomato/5656700432/

+ =

Meet Mr. Grabby

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Mr. Grabby's Back

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Controller

Grabber

Controller

• Raspberry Pi

• Cooking Hacks Shield

• MakeBlocks ME Base Shield

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Mr. Grabby's Belly

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Line Follower

Batteries

DC Motors

How Line Followers Work

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• Infrared LED

– Bounced light off the ground

• Infrared Luminosity Sensor

– Detects reflected light

Getting GPIO

gpio = GpioFactory.getInstance();

lineFollowA = gpio.provisionDigitalInputPin(RaspiPin.GPIO_13, "LineFollowA");

lineFollowB = gpio.provisionDigitalInputPin(RaspiPin.GPIO_14, "LineFollowA");

startGPIO();

boolean leftSensor = lineFollowA.getState().isHigh();

boolean rightSensor = lineFollowB.getState().isHigh();

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Line Following Algorithm

if (leftSensor && rightSensor) { //we are lost

doDrive(lineLocation);

} else if (!leftSensor && !rightSensor) { //on the line

lineLocation = Drive.forward; doDrive(Drive.forward);

} else if (!leftSensor && rightSensor) { //off the right

lineLocation = Drive.left; doDrive(Drive.forward);

} else if (leftSensor && !rightSensor) { //off the left

lineLocation = Drive.right; doDrive(Drive.forward);

}

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Make your own Mr. Grabby

• MakeBlock Advanced Robotics Kit

• MakeBlock ME Base Shield

• Cooking Hacks Shield

• USB Battery (1A)

• Code here:

https://github.com/steveonjava/LineFollower

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https://github.com/steveonjava/LineFollower

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Trick 3:

Materialization!

Disappearing Handkerchief

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Making Birds Vanish

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But What About Making Things Appear?

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Ultimaker 2

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Java Constructive Geometry (JCSG / JFXScad)

• Create geometries from pure Java code

• Visualize with a JavaFX user interface

• Generate STL files for 3D printing

• Project sites:

https://github.com/miho/JCSG

https://github.com/miho/JFXScad

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https://github.com/miho/JCSG

https://github.com/miho/JFXScad

What is Magic?

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YOU!

Stephen Chintweet: @steveonjavablog: http://steveonjava.com

nighthacking.com

Real Geeks

Live Hacking

NightHacking Tour

Safe Harbor Statement

The preceding is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle’s products remains at the sole discretion of Oracle.

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Internet of Things Magic Show

Technology

Transcript of Internet of Things Magic Show