Credit Card Computers and Their Application in HE

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Presented at THEITS 2014: The Raspberry Pi (RPi) and Beaglebone Black (BBB) are small single-board computers that bring relatively new computer concepts to higher education. The idea is to replace …

Presented at THEITS 2014: The Raspberry Pi (RPi) and Beaglebone Black (BBB) are small single-board computers that bring relatively new computer concepts to higher education. The idea is to replace traditional expensive equipment with relatively inexpensive equipment that gives the student/user the freedom to experiment through trial and error without the fear/consequences of crashing more expensive systems. This session gave an overview of each board’s hardware, necessary peripherals, optional accessories, OS and development software, and their strengths/weaknesses/limitations. The new learning model these boards offer, the trade-offs, and areas in higher education in which they may play a role in learning and other applications were also discussed.

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  • 1. Introducing Credit Card Computers (Raspberry Pi & BeagleBone Black) and Their Applications in Higher Education Monday, May 5th 2014 11:30a – 12:15p Thomas Danford & Jon Calisi Tennessee Board of Regents "Leveraging IT to Empower Students to Complete College" All trademarks and services marks belong to their owners. #THEITSSBC
  • 2. Single Board Computers (SBCs) Odroid-U3 Gooseberry Intel GalileoDozens More! Banana Pi Cubieboard
  • 3. For Purposes of this Discussion … • A “Complete” Computer • Small in Size (Credit Card) • Inexpensive < $100 • Geared Toward Education • Large User Community • Relatively Easy to Use • Significant Teaching/Learning Materials • Significant 3rd Party Add-ons Accessories
  • 4. Our Research Centered on … RaspberryPi(RPi) BeagleBoneBlack(BBB)
  • 5. About the BBB …
  • 6. About the RPi … Note: In April Banana Pi, a more powerful Chinese clone was announce along with the HummingBoard. The inside story of the Raspberry Pi
  • 7. • SD Card 8GB (recommend class 10) • Keyboard & Mouse • Micro USB Power Supply • HDMI Cable • Display Optional – Case Getting Started – Hardware … (not quite a $45 computer)
  • 8. 3rd Party Bundles • 8 GB SD Card (Class 4) with NOOBS • Micro USB Power Supply • Case with GPIO Access • HDMI Cable • Breadboard • Jumper Cables, GPIO Interface/Ribbon • LEDs, Resistors, Switches
  • 9. Copy.com Storage, Connectivity and Printing Options … Headless ConnectivityStorage Printing
  • 10. Getting Started – Software … (Raspbian) • Format the SD card with SD Formatter 4.0 (sdcard.org) • Download & extract NOOBS (raspberrypi.org/downloads) • Copy extracted NOOBS files to the SD card • Put SD card in the RPi and plug in keyboard, mouse, and monitor • Plug in USB power to boot • Install Raspbian (and any other OSs you’d like) configure as prompted • Login username = pi password = raspberry • Load GUI with startx
  • 11. Raspberry Pi Desktop – Raspbian (based on Debian) Linux with LXDE GUI
  • 12. Raspberry Pi Software • Accessories • Education • Graphics • Internet • Programming • Sound & Video • System Tools Note: The Advanced Packaging Tool (apt-get) can be used to install lots of software not included with NOOBS
  • 13. General Purpose & Educational Applications Accessories • Text Editors • Nano (Terminal) • Vim (Terminal) • Leafpad (GUI) • Image Viewer • LXTerminal • File Manager (GUI) Internet • Midori • Other Browsers Educational • Mathematica • Scratch • Sonic Pi
  • 14. Why Use Single Board Computers? Student Benefits: • “Worry free” trial and error interaction with the device • Complete control over the device hardware & software • Low-level programming that wouldn’t be advisable on other platforms Faculty Benefits: • Ability to configure special class distributions • More class time spent on teaching/learning rather than configuring
  • 15. Programming Curriculum • Python (2.7 & 3) • PyPy • Wolfram • Ruby • Bash (and Dash) • Squeak Smalltalk • C (gcc) • GDB GNU Debugger • Java • Perl • C++ (g++) Many Others … • MySQL • Erlang • APL • TinyBASIC
  • 16. Operating System Curriculum Operating Systems • Multiple Linux (Android, Arch, Chromium, Debian, Firefox, etc.) • Unix (FreeBSD & NetBSD) • RISC • Windows CE • Plan 9 from Bell Labs • ChibiOS/RT Sample Areas • Device Management • File Systems • Performance • Scheduling & Dispatch • Scripting • Security • Forensics • Server Services
  • 17. Networking & Security Curriculum Software • Raspbian • Apache & Cherokee Webservers • Nmap (Zenmap) • Wireshark • Netcat • Iperf • NetHogs Sample Areas • Protocols - TCP, DNS, SMTP, etc. • System Vulnerabilities • Techniques & Tools – Detection & Defense • Security Principles – Sandboxing & isolation • Attacks – DoS, DDoS, SQL Injection, etc.
  • 18. General Purpose Input Output (GPIO)
  • 19. • Electronics • Adafruit Tutorials • OpenSprinkler • Robotics • Udemy PiBot Course • FishPi • Microprocessor & Board Control (ARMv6 Assembler) GPIO & Microprocessors in a Curriculum
  • 20. Audio Cape Camera Cape Capes, Shields, and Cards Audio Card RS232/GPIO Shield PiFace Expansion Board
  • 21. Non-Academic HE Purposes • Security • Penetration Testing (PwnPi) • Web Honey Pot (Glastopf Pi) (KippoPi) • Small Server (Web) (BitTorrent) (FTP) (SFTP and Samba) (Web Cam) • Automation • Streaming Media (XBMC) • Digital Signage (Concerto Digital Signage from EDUCAUSE listserv)
  • 22. Nefarious Purposes? Let’s face it. They’re small $35 - $45 (disposable) Linux computers with very low power consumption that can operate off of AA batteries and have WiFi/Ethernet capability! • Man-in-the-middle Attacks RPi running PwnPi Linux distribution • Tor Relay • Trojan Horse (Phoning Home Using a Reverse Remote Ssh Tunnel) • Wireless Sniffing (Kismet) • Limited Only to the Hackers Imagination ...
  • 23. Send in the Clones … Raspberry Pi – Feb 2012 Banana Pi – Apr 2014 HummingBoard – Apr 2014 Processor: quad core 1GHz RAM: 2GB Gigabit Ethernet mSATA IR Real Time Clock Processor: dual core 1GHz RAM: 1GB Gigabit Ethernet mSATA IR Processor: single core 500 MHz RAM: 500MB 10/100 Ethernet
  • 24. Some Closing Thoughts … RaspberryPi BeagleBone Clone Cost 3 2 1 Ease of Use 3 3 3 Technology 1 2 3 Ed Materials 4 2 4 User Community 4 1 4 3rd Party Add-ons/ins 4 1 3
  • 25. Q & A (Demo if Time & Technology Permit!) Thomas Danford Tennessee Board of Regents http://www.linkedin.com/in/tdanford http://twitter.com/tdanford Thank You! Jon Calisi Tennessee Board of Regents http://www.linkedin.com/in/joncalisi Questions, comments, ideas, suggestions? Please tweet them with the hashtag #THEITSSBC