The cult of Arduino claims another victim ... with your laptop by downloading the
Arduino. IDE from .... Practical Arduino by J. Oxer and H. Blemings. ○ Making ...
CCSCNE 2012
Hands-on Computing with Arduino John Vaughn Dept. of Math/Computer Science Hobart and William Smith Colleges
[email protected] math.hws.edu/vaughn Quick start at www.arduino.cc
Road map for this session ●
What is embedded computing?
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What is Arduino?
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Demonstrations of Arduino, shields, etc.
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The cult of Arduino claims another victim
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How Arduino fits into a CS curriculum
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Sample projects
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Lessons learned
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Questions, comments, etc
Preliminaries ●
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The plan is to talk, demonstrate, answer questions for about 45 minutes then leave 20+ minutes for detailed questions, discussion, etc. You can follow along, reading or building code with your laptop by downloading the Arduino IDE from www.arduino.cc. For Mac, Windows, and Linux (apt-get). I have some Arduinos, cables, and shields if you want to experiment with them toward the end of this tutorial.
Embedded Computing ●
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Traditionally microprocessors doing specialized tasks as part of a system Thermostats, factory controls, autopilots, etc. Micro suppliers: TI, Intel, Motorola, NEC, Microchip, Atmel, ARM, many more Timeline: Engineers rule, print journals, hobby web sites, robot contests, cheap sensors, free/open source tools, boom! Italian group offers a turn-key hardware and software toolkit for programming Atmel AVR
Arduino Family and Relations ●
Open source specification for a family of devices using Atmel AVR Mega 8-bit micros
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Open source IDE (Mac, Windows, Linux)
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Simplified C++ style programming language
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Basic libraries for serial comm, sensors, PWM
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Shields (add-on PCBs) for hardware expansion
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Coordinator for contributed libraries: SPI, I2C, CAN,1-wire, IR remote, SD card, Zigbee, Ethernet, Bluetooth, PS/2, gyros, etc Clones: Boarduino, ChipKit, etc ( 70+)
Arduino Uno Hardware (CAD)
Image Courtesy Arduino.cc
Arduino Uno Hardware
Image Courtesy Arduino.cc
Arduino LilyPad Hardware
Image Courtesy Arduino.cc
Adafruit Prototyping Shield
Image Courtesy Adafruit Industries
Arduino Starter Demonstration ●
Start up Arduino IDE
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Attach USB cable and Arduino
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Choose serial port and board type
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Open a (source code) sketch (.pde or .ico)
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Compile, download, and reset board
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Bootloader handles the download, code start
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Communicate/debug via Serial Window (Processing Language programs, etc)
The Cult of Arduino Claims Another Victim ●
Call for embedded project ideas from faculty
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Enthusiastic response from biology colleague
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Idea: build and equip a bat house with sensors to monitor/log bat behavior Two students collaborated on the project Data: temperatures, ambient light, entry/exit detection, real time clock (RTC), and logging Future options: wireless downloads, video, etc
Bat House version 0.9 ●
Arduino Duemilanove
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Adafruit industries prototyping shield
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DS18B20 1-wire thermometers (3) 2
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DS1307 RTC (real time clock) I C
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IR break beam receiver and LEDs (4)
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CdS photocells (2)
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Serial EEPROM I2C
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Serial comm menu for configuration/control
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Photo-voltaic cell, A123 batteries, charger
Wiring Sensors
Construction/Testing
Electronics Prototyping
Bat House ● ●
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version1.01
Added SD card storage, better UI, tweaks Custom shield designed using Eagle CAD, manufactured through BatchPCB Source code available through Creative Commons license
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Write an article, submit to Circuit Cellar ink
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Time to move on ...
Eagle CAD Design/Production
Step Away from the Arduino, sir! ●
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Biology colleague: bird house monitoring project follows from bat house project! Why not data collection via Bluetooth or just phone the bird house (GSM Shield!) and ask for data? Why not indeed? Creates an accessible iPod player for his stepson using Arduino...
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...and an Arduino scanner/digitizing project...
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...GPS collar tracking project in the pipeline!
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It goes on.
How does Arduino fit in the CS curriculum? ●
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Easy on-ramp. Students knowing Java can begin coding in a single day using simplified C++ syntax Programming is combined with controlling/reading "real world" devices Sensors provide (noisy) inputs requiring different algorithms: Example: Sharp sensor lookups Students face holistic design problems: DS + algorithms, electronics, sensors, enclosures, power, filtering, HID, ad hoc protocols, etc. Cash and carry: students can literally own their projects such as clocks, robots, etc.
Sample Arduino Projects ●
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Ideal prerequisites: Two semesters of programming (Java) and a computer architecture course. Electronics unlikely. Emphasis is on design first, solder later, and code last! Hard to enforce. Focus on useful, everyday objects for projects. Themes: communication, motion, display, and aesthetics.
Image Gallery of Projects 2012
Image Gallery Projects 2012
Some Lessons Learned ●
Students bring very different physical skills
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Electronics is a challenge, takes time
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Soldering, hands-on work is an acquired taste
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Initial startup of a lab can be expensive
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Half life of boards and software is limited
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Debugging hardware (comm) is tedious
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Literal ownership of projects is attractive
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Thinkering is not a misspelling
Resources & References ●
www.arduino.cc
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www.sparkfun.com
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ww.adafruit.com
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www.mouser.com
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www.digikey.com
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Arduino Cookbook by Michael Margolis
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Practical Arduino by J. Oxer and H. Blemings
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Making Things Talk by Tom Igoe
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287 book entries listed on Amazon
