This document describes an IoT hackfest event promoted by Oracle and Devoxx. It provides an agenda for two days of workshops and hacking on IoT projects using Java and devices like the Raspberry Pi. On the first day, there will be introductory sessions on Raspberry Pi, Leap Motion, and brainstorming project ideas. The afternoons will involve developing prototype projects in teams with mentor support. On the second day, there will be more technical sessions and time for teams to continue working and present their projects. Prizes will be knowledge and networking rather than competitions. Various hardware kits and components will be provided for the projects.

1. #DV13 #iothackfest
Tori Wieldt, Yara Senger, Yoland and Vinicius
Oracle / OTN / Globalcode
@java

2. Thanks!
 Oracle Technology Network:
 Tori Wieldt, Senior Java Community Manager
 Yolande Poirier, Java Community Manager
 Devoxx Team
 Thank YOU for being here!
#DV13-#iothackfest
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3. Vinicius Senger
 +20 years working with software development
 Founder of Globalcode, training &consulting since 2001
 Java EE developer profile
 Started with electronics, Sun Spot, Arduino and Linux
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Embedded 5 years ago
Duke’s Choice Award 2011
JavaOne Rockstar 2012
Now I'm Maker!
#DV13-#iothackfest
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4. Yara Senger
 SouJava President
 Java Champion
 Duke’s Choice Award 2011
 JavaOne Rock Start 2012
 Director of The Developer’s Conference
 and …
 My wife!!! 
#DV13-#iothackfest
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5. #DV13-#iothackfest
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6. Ubatuba = 86 different beaches!
Come visit us!
#DV13-#iothackfest
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7. Devoxx IoT Hack Fest
 Promoted by Oracle and Devoxx;
 Two days of IoT, Java and hacking!
 Not a competition;
 Educational content in the morning;
 Hacking and hands-on in the afternoon;
 Mentors and Experts for Java Embedded Platform
 Sponsored by Oracle Technology Network (cwyat)
#DV13-#iothackfest
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8. 3 Java IoT / Embedded "Hack Fest"
rd
 July, Brazil TDC: RPi Hackathon
 October, US JavaOne: RPi Developer Challenge
 November, BE Devoxx: IoT Hack Fest
#DV13-#iothackfest
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9. Devoxx Hack Fest
 Learn: Raspberry Pi & Java / Leap Motion
 Idea brainstorm: World Wide Cafe with Yara Senger
 Team Development: Make a prototype during two days

with mentors help
Publish: source code, OTN Blog and during Steve's talk
tomorrow!
#DV13-#iothackfest
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10. The Prizes
 Knowledge
 Networking
 FUN!!!!!!
 Hugs for Free!!
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11. Monday
 9:30 – 11:00 - Vinicius Senger
• Introduction to Raspberry Pi and IoT
• Raspberry Pi + GPIO + Java
• Hands-on Lab with Oracle's Kit
 11:00 – 11:45 - Introduction to Leap Motion
 11:45 – 12:30 – Brainstorm and Team Formation
 13:30 – 20:00 - Project Development
• Your team can use Oracle's Kit!
#DV13-#iothackfest
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12. Tuesday
 9:30 – 11:00 - Vinicius Senger
• Raspberry GPIO with PI4J
• Raspberry Pi Camera
• Raspberry + Arduino Integration
 11:00 – 12:00 – Show Cases
 12:00 – 12:30 – Teams Meeting
 13:30 – 18:00 – Development
 18:00 – 19:00 – Project presentations
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13. Hacking Fest – Oracle's Kit
 8 x Raspberry Pi
 2 x Camera
 4 LCD plate
 3 Arduino
 5 x LCD Display
 2 x LED Matrix
 1 x Home Automation Box
 1 x Embedded Panel – "Intranet of Things"
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14. Let's start the fest?
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15. The moment…
+ Do it yourself
+ Open-source hardware and software
+ Entrepreneurship / Crowdfunding
+ Creativity
+ Cheaper Tiny Computer
+ Easy of Embedded Development
#DV13-#iothackfest
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16. Do it yourself
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Fix yourself use to be the first stimulus for d.i.y.
Learn different things & life-style
End-to-end developer: wood, firmware, hardware,
soldering, mechanics and creativity
Not about paying less or cheaper devices
Exciting moment for D.I.Y communities!
#DV13-#iothackfest
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17. Do it your self in action!
Student Satellites
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18. Do it your self
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Horse Instrumentation
Arduino
Heart beat
Accelerometer
GPS
#DV13-#iothackfest
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19. Do it your self in action!
#DV13-#iothackfest
Neutrons Diffractmeter
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20. Do it your self in action!
Boat Automation
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21. Your idea, your business!
#DV13-#iothackfest
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22. Internet of Things - IoT
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One computer per (relevant) thing as the new one
computer per child?
Smart Things ecosystem
More than 40 billion devices by 2020;
Things…
#DV13-#iothackfest
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23. Internet of Things
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24. Internet of Things
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25. Internet of Things
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26. Java & IoT
Personal
Devices
Med-Large Embedded / Multifunction Devices
VoIP Comm
Industrial controls /
Network Appliances
Sensors /
Microcontrollers
EmbeddedCloud
Meters
Enterprise Data &
Applications
Smart Appliances &
electronics
#DV13-#iothackfest
Management / Monitoring /
Operations
Connected Vehicles
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27. Raspberry Pi: small, simple and
cheaper computer!
• U$ 25 / U$ 35 Tiny Computer
• Arm v6 ARM1176JZF-S 700mhz / 512MB
• SOC Broadcom BCM2835
• GPU Videocore 4
• HDMI Video
• Ethernet and 2 USBs
• GPIO: UART, I2C, SPI, digitais
• Audio / LCD / Camera
#DV13-#iothackfest
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28. #DV13-#iothackfest
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29. Raspberry Pi
 Do it yourself and industry projects!
#DV13-#iothackfest
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30. Raspberry Pi
Common user
#DV13-#iothackfest
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31. Raspberry Pi
Hacking
#DV13-#iothackfest
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32. Starting your Pi
• Download your choise of OS:
• Raspbian (most popular and used here)
• Pidora
• Archlinux
• RISC Os
• Media Server XBMC
#DV13-#iothackfest
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33. Image to Card
• Linux Command
• dd if=<img.img> of=/dev/sdb
• Take CARE!
#DV13-#iothackfest
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34. Power Supply
• 5volts 1amp recommended!
• Micro USB
• Use a good power supply, it's sensible
• Rebooting use to be a power supply problem
• UBEC for battery regulator
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35. Boot!
• user: pi
• password: raspberry
• xserver is not started by default!
• command: startx
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36. Demo
• Starting Raspberry Pi!
• Booting Rpi
• startx
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37. Network Setup (DHCP)
/etc/interfaces/network
auto lo
iface lo inet loopback
iface eth0 inet dhcp
allow-hotplug wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp
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38. Network Setup: Static IP
/etc/interfaces/network
auto lo
iface lo inet loopback
iface eth0 inet dhcp
allow-hotplug wlan0
iface wlan0 inet static
address 192.168.1.118
gateway 192.168.1.1
netmask 255.255.255.0
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp
#DV13-#iothackfest
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39. Network Setup: WIFI
/etc/wpa_suplicant/wpa_suplicant.conf
network={
ssid="ssid name"
psk="key"
}
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40. sudo raspi-config
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41. vnc
 Start the server: vncserver :1
 Create a password
 Using VNC Client ip address + :1
• ip address:1
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42. Demo
vnc, network setup and raspi-config
#DV13 #iothackfest
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43. Raspberry Pi GPIO
5V
18 GND 23
GND
24
GND 25
8
7
11 (SCLK)
5V
GND
P1-01
3.3V
#DV13-#iothackfest
4
GND 17
27
22 GND
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44. GPIO
• Digital, Analog, PWM, UART, I2C and SPI
• Digital vs Analog
• PWM
• UART: old but gold Serial
• I2C and SPI: component bus
#DV13-#iothackfest
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45. Raspberry Pi GPIO
• where the fun lives!
• 17 digital pins:
• 7 general, 1 pwm, 2 I2C, 5 SPI, 2 UART
• CMOS (3.3 volts) and not TTL (5 volts) take care!
• MAX232 can convert 5 – 3 volts vice-versa
#DV13-#iothackfest
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46. where the fun lives!
https://www.modmypi.com/blog/raspberry-pi-gpio-cheat-sheet
#DV13-#iothackfest
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47. Relay Board Example
• GND, 5 volts, relay1, relay2
#DV13-#iothackfest
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48. wiringPI
GPIO Interface library
Command line GPIO manipulation
Setup digital 24 as output:
sudo gpio -g mode 24 output
"Turn on" digital 24:
sudo gpio -g write 24 1
Turn off digital 24:
sudo gpio -g write 24 0
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#DV13-#iothackfest
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49. wiringPI
• Reading port state script
#!/bin/bash
CMD=$(sudo gpio -g read 24)
echo $CMD
if [ $CMD == "0" ]; then
CMD="sudo gpio -g write 24 1";
else
CMD="sudo gpio -g write 24 0";
fi
echo $CMD
$CMD
#DV13-#iothackfest
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50. webioPI
• GPIO over the web
• Listen to port 8000, ex 192.168.1.12:8000
• User: webiopi
• Password: raspberry
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51. Demo
GPIO, wiringPi and WebIOPI
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52. Java & RPi Hack "Fast Image"
Ready to use!
/home/pi/java is the central Java directory
Comes with JDK 1.8, JES 7 and Java ME 3.3
Sample Apps Available:
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Things RESTFul Gateway – Java EE App
PiFit – Java SE
Tweet4Pi – Java SE
AutomationFX – Java FX
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53. Java SE Embedded
Optimized for Raspberry Pi / ARM
Hard-float support
All the JVM facilities embedded: debug, GC, distribution,
class loading, etc.
GPIO Access using Pi4j
Your Java SE knowledge now embedded!!!
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#DV13-#iothackfest
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54. Java EE Embedded:
Server-side just arrives in embedded side!
Lightweight Java EE server for embedded
Stack: Java SE Embedded, Glassfish, JavaDB
Embedded-cloud as the new client-server?
Gateway for infrared, zigbee, rfid, rs232, rs485, etc.
Cache, persistence, processing, integration, security, etc.
REST / JPA / Servlet
"firmware" as server!
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#DV13-#iothackfest
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55. Java FX
Very rich interface for embeddded projects
Good performance inside Raspberry Pi (runs direct on
GPU)
Setup Required:
boot/config – uncomment:
#framebuffer_width=1280
#framebuffer_height=720
Overclock 1Gh recommended (raspi-config)
Video memory split to 128mb (raspi-config)
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#DV13-#iothackfest
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56. Java ME Embedded
Java ME for Real Embedded Projects!
Internet das Coisas com 3G + Java ME + GPIO
Manutenção, debug, OTA, ferramentas
Baixo custo no Brasil: U$ 5 para larga escala!
Indústria, protótipos e "Do It Your Self"
BubbleBoard Gemalto
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#DV13-#iothackfest
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57. Oracle Event Processing Embedded
Embedded being smart
Complex event arrives in your embedded project!
Data + persistence = database
Data + Complex Event = information
Information Collection = Smart!
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#DV13-#iothackfest
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58. Demo
Java + Raspberry Pi
#DV13 #iothackfest
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59. Embedded Panel
• You can consume via REST or deploy your app there!
• Shared sensors / devices:
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2 Raspberry Pi's + 2 Arduino Based Board
8 relays
Water Pump, Fan, Pop Corn Machine
LED RGB Stripe
Alcohol, distance, temperature, humidity, light sensors
Polar heart Monitor
#DV13-#iothackfest
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60. Components & Toys
Embedded Panel
You can consume via REST or deploy your app there!
Shared sensors / devices:
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2 Raspberry Pi's + 2 Arduino Based Board
8 relays
Water Pump, Fan, Pop Corn Machine
LED RGB Stripe
Alcohol, distance, temperature, humidity, light sensors
Polar heart Monitor
#DV13-#iothackfest
@java

61. DEMO: Raspberry Pi + JES + Arduino
#DV13-#iothackfest
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62. #DV13-#iothackfest
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63. Components & Toys
Embedded Panel
192.168.1.11 – Raspberry Pi #1 (Embedded Panel)
192.168.1.12 – Raspberry Pi #2 (Embedded Panel)
192.168.1.41 – Raspberry Pi #3 (Home Automation Box)
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#DV13-#iothackfest
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64. Components & Toys
Embedded Panel – Pi #1
http://192.168.1.11:8080/things/relay1 = AC #1
http://192.168.1.11:8080/things/relay3 = AC #2
http://192.168.1.11:8080/things/temp_out = Temperature
external
http://192.168.1.11:8080/things/temp_in = Board
Temperature
http://192.168.1.11:8080/things/humidity
http://192.168.1.11:8080/things/distance
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#DV13-#iothackfest
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65. Components & Toys
Embedded Panel – Pi #2
http://192.168.1.12:8080/things/relay2 = AC #3
http://192.168.1.12:8080/things/relay4 = AC #4
http://192.168.1.12:8080/things/alcohol
http://192.168.1.12:8080/things/temp_in = Board
Temperature
http://192.168.1.12:8080/things/servo = Servo Camera
http://192.168.1.12:8081 = Camera Image
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#DV13-#iothackfest
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66. Components & Toys
Home Automation Box
•http://192.168.1.41:8080/things/temp_out = Temperature external
•http://192.168.1.41:8080/things/temp_in = Board Temperature
•http://192.168.1.41:8080/things/humidity
•http://192.168.1.41:8080/things/red/x = red color (x=0 to 255)
•http://192.168.1.41:8080/things/green/x = green color (x=0 to 255)
•http://192.168.1.41:8080/things/blue/x = blue color (x=0 to 255)
#DV13-#iothackfest
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67. Things Gateway Embedded
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RESTFul App that exposes sensors and actuators to the
Web
Uses Java Embedded Suite Stack + Things API
Allows you to access RPi GPIO and Arduinos
#DV13-#iothackfest
@java

68. Things Gateway Embedded
•
Pre-installed on all SDCard
pi@pi1 ~ $ cd java/
pi@pi1 ~/java $ ./things-gateway.sh
Deploying /home/pi/java/things.jar ...
Press <Enter> to exit server.
http://ip:8080/things/light
http://ip:8080/things/red/200
Ready to use:
http://ip:8080/things/distance
http://ip:8080/things/XXXXX
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#DV13-#iothackfest
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69. Things Gateway Embedded
http://ip:8080/things/red/200
http://ip:8080/things/light
http://ip:8080/things/distance
Raspberry Pi Server
Things API
Arduino
#DV13-#iothackfest
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70. Things API – Source
Sample code to access Arduino sensors using Things API:
git clone https://github.com/vsenger/things-api
#DV13-#iothackfest
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71. Things API – more tomorrow!
git clone https://github.com/vsenger/things-api
#DV13-#iothackfest
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72. Hands-on lab
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Using Oracle's kit
#DV13-#iothackfest
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