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titleInformation about firmata
  • Firmata is a generic protocol for communicating with microcontrollers from software on a host computer.(http://firmata.org/wiki/Main_Page)
  • For using PC/Mac software like processing to control the Arduino ports directly without the need to learn to programme in Arduino, this is the

...

  • better choice.
  • However if you want more customization, as you have more Knowledge about Arduino, you can use the SlipOSC Processing to have more customization.
    • Eg. if you are using an IMU / AHRS , any extra IC which needs custom drivers.
    • Using SlipOSC, you have to do your own programming on Arduino for each customization.

Pre-requisite:

  1. Basic Arduino knowledge
  2. Basic Processing knowledge

Objectives:

  1. Using processing to directly control Arduino pin outs and read sensor Values.

Descriptions:

  1. Open Processing and goto Sketch->Import Library->Add Library...
    (I have earlier version of processing and it doesn't have this option) 
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  2. Type firmata in the search bar and click install
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  3. Prepare Arduino for using Firmata by going to Arduino Environment
    Goto File->Examples->Firmata->StandardFirmata, open and upload the programme to Arduino
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  4. Goto processing and open the Examples of the Firmata Processing under Contributed Libraries
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  5. Try the examples. (You need to connect the buttons/sensors/servos accordingly)
  6. If you have Arduino UNO as the examples in Arduino, you'll need to change the pwm/servo examples' pin number from 4,7 into the pin numbers with "~"

Appendix:

  1. Installing Firmata for older versions of processing
    Please refer to http://playground.arduino.cc/Interfacing/Processing 

    iFrame
    srchttp://playground.arduino.cc/Interfacing/Processing
    width960
    height600

     

     

    1. Download the suitable version for your processing and extract the folder to <Your Document Folder>/Processing/libraries/

    2. Restart processing. (close and open)