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Connecting hardware to ColdFusion

Justin Mclean, profile picture
Justin Mclean

The document discusses connecting hardware, particularly Arduino, to ColdFusion, highlighting trends in electronics and computing, and the capabilities of Arduino hardware and software. It details communication methods between ColdFusion and Arduino, including the use of the Firmata protocol and Ethernet shields for internet connectivity. Additionally, it introduces Pachube for real-time sensor data management and encourages creativity and problem-solving through interactive programming.

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Connecting Hardware to ColdFusion Justin Mclean Email: justin@classsoftware.com Twitter: @justinmclean Blog: http://blog.classsoftware.com Saturday, 24 April 2010
Who am I? • Director of Class Software for 10 + years • Developing and creating web applications for 15 years • Programming for 25 years • Adobe Community Professional • Adobe certified developer and trainer in ColdFusion and Flex • Based in Sydney Australia Saturday, 24 April 2010
Electronics Trends • Low cost components • Small components • Complex components with simple standard interfaces Saturday, 24 April 2010
Computing Trends • Easier to program • Use of high level languages • Software tools • Open source Saturday, 24 April 2010
Are We There Yet? • Low cost fast devices • It’s easy to communicate between devices and computers • Can build complex systems from off the shelf components Saturday, 24 April 2010
Arduino Overview of the Arduino Platform Saturday, 24 April 2010
Arduino Platform • Open source hardware and software platform • Easy to program • Hardware is flexible, fast, low power and low cost Saturday, 24 April 2010
Arduino Hardware • Comes in a number of shapes sizes • Low cost • Easy to extend Saturday, 24 April 2010
Arduino Boards Saturday, 24 April 2010
Arduino Boards Saturday, 24 April 2010
Arduino Boards Saturday, 24 April 2010
Arduino Boards Saturday, 24 April 2010
Arduino Shields Saturday, 24 April 2010
Arduino Shields Saturday, 24 April 2010
Arduino Shields Saturday, 24 April 2010
Arduino Shields Saturday, 24 April 2010
Arduino Software Platform • Open source cross platform IDE • Alpha but very stable • Updated frequently • Growing and active community Saturday, 24 April 2010
Arduino Code • C like high level language • Inbuilt functions to read and set digital and analog inputs and outputs • Includes libraries to perform common hardware or software tasks Saturday, 24 April 2010
Arduino IDE Saturday, 24 April 2010
Led Shield Demo Saturday, 24 April 2010
Led Shield Demo Saturday, 24 April 2010
Issues • Debugging can be hard • No simulator • Memory, power and speed limits • Helps to have a little electronics knowledge Saturday, 24 April 2010
Connecting ColdFusion How to communicate between ColdFusion and the Arduino Platform Saturday, 24 April 2010
ColdFusion Communication • ColdFusion can’t easily talk USB • Use a socket to USB proxy • ColdFusion can’t easily talk raw sockets Saturday, 24 April 2010
Layers of Communication • ColdFusion to proxy via Java/CFML code • Proxy to USB communication • USB to Arduino Saturday, 24 April 2010
Connection Diagram Computer Arduino Application Code Arduino Function Calls and Code Events TCP/IP USB Library USB Proxy Firmata Socket Cable Saturday, 24 April 2010
Firmata Protocol • Simple Binary Protocol • Based on MIDI • Easy to extend • Standard Arduino software library Saturday, 24 April 2010
Firmata Protocol Type Command MIDI Byte #1 Btye #2 Analog 0xE0 pin Bits 0-6 Bits 7-13 Digital 0x90 port Bits 0-6 Bits 7-13 Report Analog 0xC0 pin 0 or 1 Report Digital 0xD0 port 0 or 1 Pin Mode 0xF4 port 0 or 1 Version 0xF9 Reset 0xFF Saturday, 24 April 2010
ColdFusion Socket • Mixed Java/CFML code • ColdFusion 8 or 9 makes it easy Saturday, 24 April 2010
ColdFusion Arduino • Alpha software • ColdFusion implementation of Firmata • Read analog values • Read/write digital values Saturday, 24 April 2010
ColdFusion Arduino Demo Saturday, 24 April 2010
Issues • Arduino startup time • Auto reset • Not a persistent connect • Proxy must be running on machine Arduino is connected to • Use under load Saturday, 24 April 2010
Ethernet Using Arduino Ethernet Shields Saturday, 24 April 2010
Ethernet Shields • Allow direct internet connection • No dedicated PC needed • Shields need a little config • Can act as web server or client Saturday, 24 April 2010
Ethernet Shields Saturday, 24 April 2010
Ethernet Shields Saturday, 24 April 2010
Ethernet Shields Saturday, 24 April 2010
Ethernet Arduino Code • Can run as web server • Code easy to write or modify Saturday, 24 April 2010
ColdFusion Code • CFHTTP to get data • Data returned as XML • Parse XML via ParseXML() • Display or act on values Saturday, 24 April 2010
ColdFusion Ethernet Demo Saturday, 24 April 2010
Pachube An easier way to connect Arduinos Saturday, 24 April 2010
Pachube • Store and share and access realtime sensor data • Simple and secure • API to interact with all data and services • Graphs and maps Saturday, 24 April 2010
Pachube Saturday, 24 April 2010
Pachube Saturday, 24 April 2010
Pachube Saturday, 24 April 2010
Pachube API • Communicates HTTP • Plain text (csv), XML or Jason • REST based • Large base of supported languages Saturday, 24 April 2010
Pachube Arduino Code • Runs on Arduino with ethernet shield • Sends values to Pachube • Can request values directly or via Pachube Saturday, 24 April 2010
ColdFusion • Call pachube API using CFHTTP • ParseXML() • XML is in EEML format • Display or act on values Saturday, 24 April 2010
Demo Saturday, 24 April 2010
Pachube Triggers • Pachube can call an URL when an analog or digital value changes or goes over or under a value • The URL can be ColdFusion URL Saturday, 24 April 2010
Why do this? • Expose yourself to new ideas and new ways of solving problems • Involves interaction with the real world • Encourages creativity • Makes you a better programmer Saturday, 24 April 2010
It’s Fun! Saturday, 24 April 2010
Questions? Ask now, see me after session or email justin@classsoftware.com Saturday, 24 April 2010
Useful Sites List of useful hardware and software sites Saturday, 24 April 2010
Software Sites • Arduino http://www.arduino.cc for software, user forum and playground • Ethernet Shields http://arduino.cc/en/Reference/ Ethernet • Pachhub http://www.pachube.com/ Saturday, 24 April 2010
Hardware Sites • Spark Fun (US) http://www.sparcfun.com/ • Adafruit Industries (US) http:// www.adafruit.com/ • Electronic Goldmine (US) http://www.goldmine- elec.com/ Saturday, 24 April 2010
Other Sites • Lady Ada http://www.ladyada.com/ • Evil Mad Scientist http:// www.evilmadscientist.com/ • NY Resistor http://www.nycresistor.com/ • Make Zine http://www.makezine.com/ Saturday, 24 April 2010

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Connecting hardware to ColdFusion

  • 1. Connecting Hardware to ColdFusion Justin Mclean Email: justin@classsoftware.com Twitter: @justinmclean Blog: http://blog.classsoftware.com Saturday, 24 April 2010
  • 2. Who am I? • Director of Class Software for 10 + years • Developing and creating web applications for 15 years • Programming for 25 years • Adobe Community Professional • Adobe certified developer and trainer in ColdFusion and Flex • Based in Sydney Australia Saturday, 24 April 2010
  • 3. Electronics Trends • Low cost components • Small components • Complex components with simple standard interfaces Saturday, 24 April 2010
  • 4. Computing Trends • Easier to program • Use of high level languages • Software tools • Open source Saturday, 24 April 2010
  • 5. Are We There Yet? • Low cost fast devices • It’s easy to communicate between devices and computers • Can build complex systems from off the shelf components Saturday, 24 April 2010
  • 6. Arduino Overview of the Arduino Platform Saturday, 24 April 2010
  • 7. Arduino Platform • Open source hardware and software platform • Easy to program • Hardware is flexible, fast, low power and low cost Saturday, 24 April 2010
  • 8. Arduino Hardware • Comes in a number of shapes sizes • Low cost • Easy to extend Saturday, 24 April 2010
  • 17. Arduino Software Platform • Open source cross platform IDE • Alpha but very stable • Updated frequently • Growing and active community Saturday, 24 April 2010
  • 18. Arduino Code • C like high level language • Inbuilt functions to read and set digital and analog inputs and outputs • Includes libraries to perform common hardware or software tasks Saturday, 24 April 2010
  • 20. Led Shield Demo Saturday, 24 April 2010
  • 21. Led Shield Demo Saturday, 24 April 2010
  • 22. Issues • Debugging can be hard • No simulator • Memory, power and speed limits • Helps to have a little electronics knowledge Saturday, 24 April 2010
  • 23. Connecting ColdFusion How to communicate between ColdFusion and the Arduino Platform Saturday, 24 April 2010
  • 24. ColdFusion Communication • ColdFusion can’t easily talk USB • Use a socket to USB proxy • ColdFusion can’t easily talk raw sockets Saturday, 24 April 2010
  • 25. Layers of Communication • ColdFusion to proxy via Java/CFML code • Proxy to USB communication • USB to Arduino Saturday, 24 April 2010
  • 26. Connection Diagram Computer Arduino Application Code Arduino Function Calls and Code Events TCP/IP USB Library USB Proxy Firmata Socket Cable Saturday, 24 April 2010
  • 27. Firmata Protocol • Simple Binary Protocol • Based on MIDI • Easy to extend • Standard Arduino software library Saturday, 24 April 2010
  • 28. Firmata Protocol Type Command MIDI Byte #1 Btye #2 Analog 0xE0 pin Bits 0-6 Bits 7-13 Digital 0x90 port Bits 0-6 Bits 7-13 Report Analog 0xC0 pin 0 or 1 Report Digital 0xD0 port 0 or 1 Pin Mode 0xF4 port 0 or 1 Version 0xF9 Reset 0xFF Saturday, 24 April 2010
  • 29. ColdFusion Socket • Mixed Java/CFML code • ColdFusion 8 or 9 makes it easy Saturday, 24 April 2010
  • 30. ColdFusion Arduino • Alpha software • ColdFusion implementation of Firmata • Read analog values • Read/write digital values Saturday, 24 April 2010
  • 32. Issues • Arduino startup time • Auto reset • Not a persistent connect • Proxy must be running on machine Arduino is connected to • Use under load Saturday, 24 April 2010
  • 33. Ethernet Using Arduino Ethernet Shields Saturday, 24 April 2010
  • 34. Ethernet Shields • Allow direct internet connection • No dedicated PC needed • Shields need a little config • Can act as web server or client Saturday, 24 April 2010
  • 38. Ethernet Arduino Code • Can run as web server • Code easy to write or modify Saturday, 24 April 2010
  • 39. ColdFusion Code • CFHTTP to get data • Data returned as XML • Parse XML via ParseXML() • Display or act on values Saturday, 24 April 2010
  • 41. Pachube An easier way to connect Arduinos Saturday, 24 April 2010
  • 42. Pachube • Store and share and access realtime sensor data • Simple and secure • API to interact with all data and services • Graphs and maps Saturday, 24 April 2010
  • 46. Pachube API • Communicates HTTP • Plain text (csv), XML or Jason • REST based • Large base of supported languages Saturday, 24 April 2010
  • 47. Pachube Arduino Code • Runs on Arduino with ethernet shield • Sends values to Pachube • Can request values directly or via Pachube Saturday, 24 April 2010
  • 48. ColdFusion • Call pachube API using CFHTTP • ParseXML() • XML is in EEML format • Display or act on values Saturday, 24 April 2010
  • 50. Pachube Triggers • Pachube can call an URL when an analog or digital value changes or goes over or under a value • The URL can be ColdFusion URL Saturday, 24 April 2010
  • 51. Why do this? • Expose yourself to new ideas and new ways of solving problems • Involves interaction with the real world • Encourages creativity • Makes you a better programmer Saturday, 24 April 2010
  • 53. Questions? Ask now, see me after session or email justin@classsoftware.com Saturday, 24 April 2010
  • 54. Useful Sites List of useful hardware and software sites Saturday, 24 April 2010
  • 55. Software Sites • Arduino http://www.arduino.cc for software, user forum and playground • Ethernet Shields http://arduino.cc/en/Reference/ Ethernet • Pachhub http://www.pachube.com/ Saturday, 24 April 2010
  • 56. Hardware Sites • Spark Fun (US) http://www.sparcfun.com/ • Adafruit Industries (US) http:// www.adafruit.com/ • Electronic Goldmine (US) http://www.goldmine- elec.com/ Saturday, 24 April 2010
  • 57. Other Sites • Lady Ada http://www.ladyada.com/ • Evil Mad Scientist http:// www.evilmadscientist.com/ • NY Resistor http://www.nycresistor.com/ • Make Zine http://www.makezine.com/ Saturday, 24 April 2010