Guide.Environment History

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August 19, 2013, at 12:54 PM by Roberto Guido - corrected minor typo. Thanks to Mark du Preez for feedback
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  • Import Library
    Adds a library to your sketch by inserting #include statements at the code of your code. For more details, see libraries below. Additionally, with version 1.0.5 and later of the IDE, you can import a library from a .zip file.
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  • Import Library
    Adds a library to your sketch by inserting #include statements at the start of your code. For more details, see libraries below. Additionally, with version 1.0.5 and later of the IDE, you can import a library from a .zip file.
May 08, 2013, at 01:33 PM by Scott Fitzgerald -
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There is a list of libraries in the reference. Some libraries are included with the Arduino software. Others can be downloaded from a variety of sources. Starting with version 1.0.5 of the DE, you do can import a library from a zip file and use it in an open sketch. See these instructions for installing a third-party library.

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There is a list of libraries in the reference. Some libraries are included with the Arduino software. Others can be downloaded from a variety of sources. Starting with version 1.0.5 of the IDE, you do can import a library from a zip file and use it in an open sketch. See these instructions for installing a third-party library.

May 08, 2013, at 12:53 PM by Scott Fitzgerald -
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There is a list of libraries in the reference. Some libraries are included with the Arduino software. Others can be downloaded from a variety of sources. See these instructions for installing a third-party library.

to:

There is a list of libraries in the reference. Some libraries are included with the Arduino software. Others can be downloaded from a variety of sources. Starting with version 1.0.5 of the DE, you do can import a library from a zip file and use it in an open sketch. See these instructions for installing a third-party library.

May 08, 2013, at 12:52 PM by Scott Fitzgerald -
Changed lines 82-83 from:
  • Import Library
    Adds a library to your sketch by inserting #include statements at the code of your code. For more details, see libraries below.
to:
  • Import Library
    Adds a library to your sketch by inserting #include statements at the code of your code. For more details, see libraries below. Additionally, with version 1.0.5 and later of the IDE, you can import a library from a .zip file.
October 09, 2012, at 04:15 PM by Scott Fitzgerald -
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  • Auto Format
    This formats your code nicely: i.e. indents it so that opening and closing curly braces line up, and that the statements instead curly braces are indented more.
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  • Auto Format
    This formats your code nicely: i.e. indents it so that opening and closing curly braces line up, and that the statements inside curly braces are indented more.
September 24, 2012, at 03:37 PM by David A. Mellis -
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There is a list of libraries in the reference. Some libraries are included with the Arduino software. Others can be downloaded from a variety of sources. To install these third-party libraries, create a directory called libraries within your sketchbook directory. Then unzip the library there. For example, to install the DateTime library, its files should be in the /libraries/DateTime sub-folder of your sketchbook folder.

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There is a list of libraries in the reference. Some libraries are included with the Arduino software. Others can be downloaded from a variety of sources. See these instructions for installing a third-party library.

June 02, 2012, at 10:07 PM by David A. Mellis -
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  • Arduino Duemilanove or Nano w/ ATmega328
    An ATmega328 running at 16 MHz with auto-reset.

  • Arduino Diecimila, Duemilanove, or Nano w/ ATmega168
    An ATmega168 running at 16 MHz with auto-reset. Compilation and upload is equivalent to Arduino NG or older w/ ATmega168, but the bootloader burned has a faster timeout (and blinks the pin 13 LED only once on reset).

  • Arduino Mega 2560
    An ATmega2560 running at 16 MHz with auto-reset, using an stk500v2 bootloader.
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  • Arduino Duemilanove w/ ATmega328
    An ATmega328 running at 16 MHz with auto-reset.

  • Arduino Diecimila or Duemilanove w/ ATmega168
    An ATmega168 running at 16 MHz with auto-reset. Compilation and upload is equivalent to Arduino NG or older w/ ATmega168, but the bootloader burned has a faster timeout (and blinks the pin 13 LED only once on reset).

  • Arduino Nano w/ ATmega328
    An ATmega328 running at 16 MHz with auto-reset. Has eight analog inputs.

  • Arduino Nano w/ ATmega168
    An ATmega168 running at 16 MHz with auto-reset. Compilation and upload is equivalent to Arduino NG or older w/ ATmega168, but the bootloader burned has a faster timeout (and blinks the pin 13 LED only once on reset). Has eight analog inputs.

  • Arduino Mega 2560 or Mega ADK
    An ATmega2560 running at 16 MHz with auto-reset, using an stk500v2 bootloader.
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  • Arduino Mini
    Equivalent to Arduino NG or older w/ ATmega168 (i.e. an ATmega168 running at 16 MHz without auto-reset).
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  • Arduino Mini w/ ATmega328
    An ATmega328 running at 16 MHz with auto-reset, using the optiboot bootloader (115200 baud, 0.5 KB). Has eight analog inputs.

  • Arduino Mini w/ ATmega168
    Equivalent to Arduino NG or older w/ ATmega168 (i.e. an ATmega168 running at 16 MHz without auto-reset).
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  • Arduino Diecimila, Duemilanove, or Nano w/ ATmega168
    An ATmega168 running at 16 MHz with auto-reset. Compilation and upload is equivalent to Arduino NG or older w/ ATmega168, but the bootloader burned has a faster timeout (and blinks the pin 13 LED only once on reset). Also used for the 16 MHz (5V) versions of the Arduino Pro and Pro Mini with an ATmega168.
May 23, 2012, at 03:06 PM by David A. Mellis -
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  • Arduino Leonardo
    An ATmega32u4 running at 16 MHz with auto-reset.
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  • Arduino Leonardo
    An ATmega32u4 running at 16 MHz with auto-reset.
May 23, 2012, at 03:02 PM by David A. Mellis -
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Language Support


The Arduino 1.0.1 software environment has been translated into 30+ different languages. By default, the IDE loads in the language selected by your operating system. (Note: on Windows and possibly Linux, this is determined by the locale setting which controls currency and date formats, not by the language the operating system is displayed in.)

If you would like to change the language manually, start the Arduino software and open the Preferences window. Next to the Editor Language there is a dropdown menu of currently supported languages. Select your preferred language from the menu, and restart the software to use the selected language. If your preferred language is not supported, the IDE will default to English.

You can return Arduino to its default setting of selecting its language based on your operating system by selecting System Default from the Editor Language drop-down. This setting will take effect when you restart the Arduino software. Similarly, after changing your operating system's settings, you must restart the Arduino software to update it to the new default language.

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Language Support


The Arduino 1.0.1 software environment has been translated into 30+ different languages. By default, the IDE loads in the language selected by your operating system. (Note: on Windows and possibly Linux, this is determined by the locale setting which controls currency and date formats, not by the language the operating system is displayed in.)

If you would like to change the language manually, start the Arduino software and open the Preferences window. Next to the Editor Language there is a dropdown menu of currently supported languages. Select your preferred language from the menu, and restart the software to use the selected language. If your preferred language is not supported, the IDE will default to English.

You can return Arduino to its default setting of selecting its language based on your operating system by selecting System Default from the Editor Language drop-down. This setting will take effect when you restart the Arduino software. Similarly, after changing your operating system's settings, you must restart the Arduino software to update it to the new default language.

May 23, 2012, at 03:01 PM by David A. Mellis -
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Arduino 1.0.1 has been fully translated in 20 different languages. By default, the IDE loads in the system's preferred language. If you would like to change the language manually, start the Arduino software and open the Preferences window. Next to the Editor Language there is a dropdown menu of currently supported languages. Select your preferred language from the menu, and restart the software to use the selected language.\\

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If your preferred language is not supported, the IDE will default to English. In Windows XP and OSX, if you change the system to a supported language are using the default option, Arduino will change its language next time it is launched.

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The Arduino 1.0.1 software environment has been translated into 30+ different languages. By default, the IDE loads in the language selected by your operating system. (Note: on Windows and possibly Linux, this is determined by the locale setting which controls currency and date formats, not by the language the operating system is displayed in.)

If you would like to change the language manually, start the Arduino software and open the Preferences window. Next to the Editor Language there is a dropdown menu of currently supported languages. Select your preferred language from the menu, and restart the software to use the selected language. If your preferred language is not supported, the IDE will default to English.

You can return Arduino to its default setting of selecting its language based on your operating system by selecting System Default from the Editor Language drop-down. This setting will take effect when you restart the Arduino software. Similarly, after changing your operating system's settings, you must restart the Arduino software to update it to the new default language.

April 28, 2012, at 06:32 AM by Scott Fitzgerald -
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  • Arduino Leonardo
    An ATmega32u4 running at 16 MHz with auto-reset.
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For instructions on installing support for other boards, see third-party hardware above.

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For instructions on installing support for other boards, see third-party hardware above.

April 10, 2012, at 11:06 PM by Scott Fitzgerald -
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If your preferred language is not supported, the IDE will default to English.

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If your preferred language is not supported, the IDE will default to English. In Windows XP and OSX, if you change the system to a supported language are using the default option, Arduino will change its language next time it is launched.

April 10, 2012, at 08:28 PM by Scott Fitzgerald -
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Arduino 1.0.1 has been fully translated in 20 different languages. By default, the IDE loads in the system's preferred language. If you would like to change the language manually, start the Arduino software and open the Preferences window. Next to Editor Languages there is a dropdown menu of currently supported languages. Select your preferred language from the menu, and restart the software to use the selected language.\\

to:

Arduino 1.0.1 has been fully translated in 20 different languages. By default, the IDE loads in the system's preferred language. If you would like to change the language manually, start the Arduino software and open the Preferences window. Next to the Editor Language there is a dropdown menu of currently supported languages. Select your preferred language from the menu, and restart the software to use the selected language.\\

April 10, 2012, at 08:28 PM by Scott Fitzgerald -
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If your preferred language is not supported, the IDE will default to English.

April 10, 2012, at 08:22 PM by Scott Fitzgerald -
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Arduino 1.0.1 has been fully translated in 20 different languages. By default, the IDE loads in the system's preferred language. If you would like to change the language manually, start the Arduino software and open the Preferences window. A dropdown menu has a list of currently supported languages. Once you select your preferred language, you will need to restart the software.\\

to:

Arduino 1.0.1 has been fully translated in 20 different languages. By default, the IDE loads in the system's preferred language. If you would like to change the language manually, start the Arduino software and open the Preferences window. Next to Editor Languages there is a dropdown menu of currently supported languages. Select your preferred language from the menu, and restart the software to use the selected language.\\

April 10, 2012, at 08:18 PM by Scott Fitzgerald -
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attach:languagePreferences.png

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April 10, 2012, at 08:18 PM by Scott Fitzgerald -
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Language Support\\

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Language Support

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Writing Sketches\\

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Writing Sketches

April 10, 2012, at 08:17 PM by Scott Fitzgerald -
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Software written using Arduino are called sketches. These sketches are written in the text editor. Sketches are saved with the file extension .ino. It has features for cutting/pasting and for searching/replacing text. The message area gives feedback while saving and exporting and also displays errors. The console displays text output by the Arduino environment including complete error messages and other information. The bottom righthand corner of the window displays the current board and serial port. The toolbar buttons allow you to verify and upload programs, create, open, and save sketches, and open the serial monitor:

to:

Language Support
Arduino 1.0.1 has been fully translated in 20 different languages. By default, the IDE loads in the system's preferred language. If you would like to change the language manually, start the Arduino software and open the Preferences window. A dropdown menu has a list of currently supported languages. Once you select your preferred language, you will need to restart the software.
attach:languagePreferences.png

Writing Sketches
Software written using Arduino are called sketches. These sketches are written in the text editor. Sketches are saved with the file extension .ino. It has features for cutting/pasting and for searching/replacing text. The message area gives feedback while saving and exporting and also displays errors. The console displays text output by the Arduino environment including complete error messages and other information. The bottom righthand corner of the window displays the current board and serial port. The toolbar buttons allow you to verify and upload programs, create, open, and save sketches, and open the serial monitor.

September 23, 2011, at 11:42 PM by Tom Igoe -
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Software written using Arduino are called sketches. These sketches are written in the text editor. Sketches are saved with the file extension .ino. It has features for cutting/pasting and for searching/replacing text. The message area gives feedback while saving and exporting and also displays errors. The console displays text output by the Arduino environment including complete error messages and other information. The bottom righthand corner of the window displays the current board and serial port. The toolbar buttons allow you to verify and upload programs, create, open, and save sketches, and open the serial monitor:

to:

Software written using Arduino are called sketches. These sketches are written in the text editor. Sketches are saved with the file extension .ino. It has features for cutting/pasting and for searching/replacing text. The message area gives feedback while saving and exporting and also displays errors. The console displays text output by the Arduino environment including complete error messages and other information. The bottom righthand corner of the window displays the current board and serial port. The toolbar buttons allow you to verify and upload programs, create, open, and save sketches, and open the serial monitor:

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Additional commands are found within the five menus: File, Edit, Sketch, Tools, Help. The menus are context sensitive which means only those items relevant to the work currently being carried out are available.

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Additional commands are found within the five menus: File, Edit, Sketch, Tools, Help. The menus are context sensitive which means only those items relevant to the work currently being carried out are available.

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  • Programmer
    For selecting an AVR ISP when programming a board or chip and not using the onboard USB-serial connection.

  • Burn Bootloader
    The items in this menu allow you to burn a bootloader onto the microcontroller on an Arduino board. This is not required for normal use of an Arduino board but is useful if you purchase a new ATmega (which normally come without a bootloader). Ensure that you've selected the correct board from the Boards menu before burning the bootloader.
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  • Programmer
    For selecting a harware programmer when programming a board or chip and not using the onboard USB-serial connection. Normally you won't need this, but if you're burning a bootloader to a new microcontroller, you will use this.

  • Burn Bootloader
    The items in this menu allow you to burn a bootloader onto the microcontroller on an Arduino board. This is not required for normal use of an Arduino board but is useful if you purchase a new ATmega microcontroller (which normally come without a bootloader). Ensure that you've selected the correct board from the Boards menu before burning the bootloader.
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The Arduino environment includes the concept of a sketchbook: a standard place to store your programs (or sketches). The sketches in your sketchbook can be opened from the File > Sketchbook menu or from the Open button on the toolbar. The first time you run the Arduino software, it will automatically create a directory for your sketchbook. You can view or change the location of the sketchbook location from with the Preferences dialog.

Beginning with version 1.0, files are saved with a .ino file extension. Previous versions use the .pde extension. You may still open .pde named files in version 1.0 and later, the software will automatically rename the extension to .ino.

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The Arduino environment uses the concept of a sketchbook: a standard place to store your programs (or sketches). The sketches in your sketchbook can be opened from the File > Sketchbook menu or from the Open button on the toolbar. The first time you run the Arduino software, it will automatically create a directory for your sketchbook. You can view or change the location of the sketchbook location from with the Preferences dialog.

'''Beginning with version 1.0, files are saved with a .ino file extension. Previous versions use the .pde extension. You may still open .pde named files in version 1.0 and later, the software will automatically rename the extension to .ino.

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Before uploading your sketch, you need to select the correct items from the Tools > Board and Tools > Serial Port menus. The boards are described below. On the Mac, the serial port is probably something like /dev/tty.usbserial-1B1 (for a USB board), or /dev/tty.USA19QW1b1P1.1 (for a serial board connected with a Keyspan USB-to-Serial adapter). On Windows, it's probably COM1 or COM2 (for a serial board) or COM4, COM5, COM7, or higher (for a USB board) - to find out, you look for USB serial device in the ports section of the Windows Device Manager. On Linux, it should be /dev/ttyUSB0, /dev/ttyUSB1 or similar.

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Before uploading your sketch, you need to select the correct items from the Tools > Board and Tools > Serial Port menus. The boards are described below. On the Mac, the serial port is probably something like /dev/tty.usbmodem241 (for an Uno or Mega2560 or Leonardo) or /dev/tty.usbserial-1B1 (for a Duemilanove or earlier USB board), or /dev/tty.USA19QW1b1P1.1 (for a serial board connected with a Keyspan USB-to-Serial adapter). On Windows, it's probably COM1 or COM2 (for a serial board) or COM4, COM5, COM7, or higher (for a USB board) - to find out, you look for USB serial device in the ports section of the Windows Device Manager. On Linux, it should be /dev/ttyUSB0, /dev/ttyUSB1 or similar.

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When you upload a sketch, you're using the Arduino bootloader, a small program that has been loaded on to the microcontroller on your board. It allows you to upload code without using any additional hardware. The bootloader is active for a few seconds when the board resets; then it starts whichever sketch was most recently uploaded to the microcontroller. The bootloader will blink the on-board (pin 13) LED when it starts (i.e. when the board resets).

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When you upload a sketch, you're using the Arduino bootloader, a small program that has been loaded on to the microcontroller on your board. It allows you to upload code without using any additional hardware. The bootloader is active for a few seconds when the board resets; then it starts whichever sketch was most recently uploaded to the microcontroller. The bootloader will blink the on-board (pin 13) LED when it starts (i.e. when the board resets).

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For details on creating packages for third-party hardware, see the platforms page on the Google Code developers site.

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For details on creating packages for third-party hardware, see the platforms page on the Arduino Google Code developers site.

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The board selection has two effects: the parameters (e.g. CPU speed and baud rate) used when compiling and uploading sketches; and the file and fuse settings used by the burn bootloader command. Some of the board definitions differ only in the latter, so even if you've been uploading successfully with a particular selection you'll want to check it before burning the bootloader.

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The board selection has two effects: it sets the parameters (e.g. CPU speed and baud rate) used when compiling and uploading sketches; and sets and the file and fuse settings used by the burn bootloader command. Some of the board definitions differ only in the latter, so even if you've been uploading successfully with a particular selection you'll want to check it before burning the bootloader.

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September 23, 2011, at 11:32 PM by Tom Igoe -
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''Verify'
Checks your code for errors.

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Verify
Checks your code for errors.

September 14, 2011, at 03:50 PM by Scott Fitzgerald -
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NB: Versions of the IDE prior to 1.0 saved sketches with the extension .pde. It is possible to open these files with version 1.0, you will be prompted to save the sketch with the .ino extension on save.

September 07, 2011, at 04:52 PM by Scott Fitzgerald - added info about current board/serial port in IDE
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Software written using Arduino are called sketches. These sketches are written in the text editor. Sketches are saved with the file extension .ino. It has features for cutting/pasting and for searching/replacing text. The message area gives feedback while saving and exporting and also displays errors. The console displays text output by the Arduino environment including complete error messages and other information. The toolbar buttons allow you to verify and upload programs, create, open, and save sketches, and open the serial monitor:

to:

Software written using Arduino are called sketches. These sketches are written in the text editor. Sketches are saved with the file extension .ino. It has features for cutting/pasting and for searching/replacing text. The message area gives feedback while saving and exporting and also displays errors. The console displays text output by the Arduino environment including complete error messages and other information. The bottom righthand corner of the window displays the current board and serial port. The toolbar buttons allow you to verify and upload programs, create, open, and save sketches, and open the serial monitor:

September 07, 2011, at 04:09 PM by Scott Fitzgerald -
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September 07, 2011, at 03:08 AM by Scott Fitzgerald - updated icons
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September 07, 2011, at 03:07 AM by Scott Fitzgerald - updated icons
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September 07, 2011, at 03:01 AM by Scott Fitzgerald - added archive sketch and Programmer entries
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Note: If you are using an external programmer, you can hold down the "shift" key on your computer when using this icon. The text will change to "Upload using Programmer"

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  • Archive Sketch
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  • Archive Sketch
    Archives a copy of the current sketch in .zip format. The archive is placed in the same directory as the sketch.
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  • Programmer

  • Burn Bootloader
    The items in this menu allow you to burn a bootloader onto the microcontroller on an Arduino board. This is not required for normal use of an Arduino board but is useful if you purchase a new ATmega (which normally come without a bootloader). Ensure that you've selected the correct board from the Boards menu before burning the bootloader. When using an AVR ISP, you'll need to select the item corresponding to your programmer from the Serial Port menu.
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  • Programmer
    For selecting an AVR ISP when programming a board or chip and not using the onboard USB-serial connection.

  • Burn Bootloader
    The items in this menu allow you to burn a bootloader onto the microcontroller on an Arduino board. This is not required for normal use of an Arduino board but is useful if you purchase a new ATmega (which normally come without a bootloader). Ensure that you've selected the correct board from the Boards menu before burning the bootloader.
September 07, 2011, at 02:55 AM by Scott Fitzgerald - changes for 1.0 (added ethernet board, file extension, other sundries)
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Software written using Arduino are called sketches. These sketches are written in the text editor. It has features for cutting/pasting and for searching/replacing text. The message area gives feedback while saving and exporting and also displays errors. The console displays text output by the Arduino environment including complete error messages and other information. The toolbar buttons allow you to verify and upload programs, create, open, and save sketches, and open the serial monitor:

to:

Software written using Arduino are called sketches. These sketches are written in the text editor. Sketches are saved with the file extension .ino. It has features for cutting/pasting and for searching/replacing text. The message area gives feedback while saving and exporting and also displays errors. The console displays text output by the Arduino environment including complete error messages and other information. The toolbar buttons allow you to verify and upload programs, create, open, and save sketches, and open the serial monitor:

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Verify/Compile
Checks your code for errors.

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''Verify'
Checks your code for errors.

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Stop
Stops the serial monitor, or unhighlight other buttons.

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Upload
Compiles your code and uploads it to the Arduino I/O board. See uploading below for details.

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  • Copy for Discourse
    Copies the code of your sketch to the clipboard in a forum suitable for posting to the forum, complete with syntax coloring.
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  • Copy for Forum
    Copies the code of your sketch to the clipboard in a form suitable for posting to the forum, complete with syntax coloring.
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  • Show Sketch Folder
    Opens the current sketch folder.

  • Add File...
    Adds a source file to the sketch (it will be copied from its current location). The new file appears in a new tab in the sketch window. Files can be removed from the sketch using the tab menu.
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  • Show Sketch Folder
    Opens the sketch folder on the desktop.

  • Add File...
    Adds a source file to the sketch (it will be copied from its current location). The new file appears in a new tab in the sketch window. Files can be removed from the sketch using the tab menu.
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  • Archive Sketch
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  • Programmer
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Beginning with version 1.0, files are saved with a .ino file extension. Previous versions use the .pde extension. You may still open .pde named files in version 1.0 and later, the software will automatically rename the extension to .ino.

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Once you've selected the correct serial port and board, press the upload button in the toolbar or select the Upload to I/O Board item from the File menu. Current Arduino boards will reset automatically and begin the upload. With older boards that lack auto-reset, you'll need to press the reset button on the board just before starting the upload. On most boards, you'll see the RX and TX LEDs blink as the sketch is uploaded. The Arduino environment will display a message when the upload is complete, or show an error.

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Once you've selected the correct serial port and board, press the upload button in the toolbar or select the Upload item from the File menu. Current Arduino boards will reset automatically and begin the upload. With older boards (pre-Diecimila) that lack auto-reset, you'll need to press the reset button on the board just before starting the upload. On most boards, you'll see the RX and TX LEDs blink as the sketch is uploaded. The Arduino environment will display a message when the upload is complete, or show an error.

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  • Arduino Ethernet
    Equivalent to Arduino UNO with an Ethernet shield.
October 17, 2010, at 07:35 PM by David A. Mellis -
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  • Arduino BT
    ATmega168 running at 16 MHz. The bootloader burned includes codes to initialize the on-board bluetooth module.
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  • Arduino Fio
    An ATmega328 running at 8 MHz with auto-reset. Equivalent to Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328.

  • Arduino BT w/ ATmega328
    ATmega328 running at 16 MHz. The bootloader burned (4 KB) includes codes to initialize the on-board bluetooth module.

  • Arduino BT w/ ATmega168
    ATmega168 running at 16 MHz. The bootloader burned includes codes to initialize the on-board bluetooth module.
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For instructions on installing support for other boards, see third-party hardware above.

October 17, 2010, at 07:30 PM by David A. Mellis -
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  • Arduino Duemilanove or Nano w/ ATmega328
    An ATmega328 running at 16 MHz with auto-reset. Also used for the 16 MHz (5V) versions of the Arduino Pro or Pro Mini with an ATmega328.

  • Arduino Diecimila, Duemilanove, or Nano w/ ATmega168
    An ATmega168 running at 16 MHz with auto-reset. Compilation and upload is equivalent to Arduino NG or older w/ ATmega168, but the bootloader burned has a faster timeout (and blinks the pin 13 LED only once on reset). Also used for the 16 MHz (5V) versions of the Arduino Pro and Pro Mini with an ATmega168.

  • Arduino Mega
    An ATmega1280 running at 16 MHz with auto-reset.
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  • Arduino Uno
    An ATmega328 running at 16 MHz with auto-reset, using the optiboot bootloader (115200 baud, 0.5 KB).

  • Arduino Duemilanove or Nano w/ ATmega328
    An ATmega328 running at 16 MHz with auto-reset.

  • Arduino Diecimila, Duemilanove, or Nano w/ ATmega168
    An ATmega168 running at 16 MHz with auto-reset. Compilation and upload is equivalent to Arduino NG or older w/ ATmega168, but the bootloader burned has a faster timeout (and blinks the pin 13 LED only once on reset).

  • Arduino Mega 2560
    An ATmega2560 running at 16 MHz with auto-reset, using an stk500v2 bootloader.

  • Arduino Mega (ATmega1280)
    An ATmega1280 running at 16 MHz with auto-reset.
Added lines 166-171:
  • Arduino Pro or Pro Mini (5V, 16 MHz) w/ ATmega328
    An ATmega328 running at 16 MHz with auto-reset. Equivalent to Arduino Duemilanove or Nano w/ ATmega328.

  • Arduino Pro or Pro Mini (5V, 16 MHz) w/ ATmega168
    An ATmega168 running at 16 MHz with auto-reset. Equivalent to Arduino Diecimila, Duemilanove, or Nano w/ ATmega168.

  • Arduino Diecimila, Duemilanove, or Nano w/ ATmega168
    An ATmega168 running at 16 MHz with auto-reset. Compilation and upload is equivalent to Arduino NG or older w/ ATmega168, but the bootloader burned has a faster timeout (and blinks the pin 13 LED only once on reset). Also used for the 16 MHz (5V) versions of the Arduino Pro and Pro Mini with an ATmega168.
April 01, 2010, at 10:55 PM by David A. Mellis -
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To write your own library, see this tutorial.

March 07, 2010, at 06:36 AM by David A. Mellis -
Changed lines 125-126 from:

Support for third-party hardware can be added to the hardware directory of your sketchbook directory. Platforms installed there may include board definitions (which appear in the board menu), core libraries, bootloaders, and programmer definitions. To install, create the hardware directory, then unzip the third-party platform into its own sub-directory. To uninstall, simply delete its directory.

to:

Support for third-party hardware can be added to the hardware directory of your sketchbook directory. Platforms installed there may include board definitions (which appear in the board menu), core libraries, bootloaders, and programmer definitions. To install, create the hardware directory, then unzip the third-party platform into its own sub-directory. (Don't use "arduino" as the sub-directory name or you'll override the built-in Arduino platform.) To uninstall, simply delete its directory.

February 02, 2010, at 02:48 PM by David A. Mellis -
Added lines 122-128:

Third-Party Hardware

Support for third-party hardware can be added to the hardware directory of your sketchbook directory. Platforms installed there may include board definitions (which appear in the board menu), core libraries, bootloaders, and programmer definitions. To install, create the hardware directory, then unzip the third-party platform into its own sub-directory. To uninstall, simply delete its directory.

For details on creating packages for third-party hardware, see the platforms page on the Google Code developers site.

December 23, 2009, at 07:03 PM by David A. Mellis -
Changed lines 57-58 from:

Upload to I/O Board
Compiles your code and uploads it to the Arduino I/O board. Uses the selected items in the Tools > Board and Tools > Serial Port menus.

to:

Upload to I/O Board
Compiles your code and uploads it to the Arduino I/O board. See uploading below for details.

December 23, 2009, at 06:57 PM by David A. Mellis -
Changed lines 102-103 from:

Tabs and Multiple Files

to:

Tabs, Multiple Files, and Compilation

Deleted lines 105-111:

Libraries

Libraries provide extra functionality for use in sketches, e.g. working with hardware or manipulating data. To use a library in a sketch, select it from the Sketch > Import Library menu. This will insert one or more #include statements at the top of the sketch and compile the library with your sketch. Because libraries are uploaded to the board with your sketch, they increase the amount of space it takes up. If a sketch no longer needs a library, simply delete its #include statements from the top of your code.

There is a list of libraries in the reference. Some libraries are included with the Arduino software. Others can be downloaded from a variety of sources. To install these third-party libraries, create a directory called libraries within your sketchbook directory. Then unzip the library there. For example, to install the DateTime library, its files should be in the /libraries/DateTime sub-folder of your sketchbook folder.

Changed lines 109-110 from:

Before uploading your sketch, you need to select the item from the Tools > Serial Port menu that represents your Arduino board. On the Mac, this is probably something like /dev/tty.usbserial-1B1 (for a USB board), or /dev/tty.USA19QW1b1P1.1 (for a serial board connected with a Keyspan USB-to-Serial adapter). On Windows, it's probably COM1 or COM2 (for a serial board) or COM4, COM5, COM7, or higher (for a USB board) - to find out, you look for USB serial device in the ports section of the Windows Device Manager. On Linux, it should be /dev/ttyUSB0, /dev/ttyUSB1 or similar.

to:

Before uploading your sketch, you need to select the correct items from the Tools > Board and Tools > Serial Port menus. The boards are described below. On the Mac, the serial port is probably something like /dev/tty.usbserial-1B1 (for a USB board), or /dev/tty.USA19QW1b1P1.1 (for a serial board connected with a Keyspan USB-to-Serial adapter). On Windows, it's probably COM1 or COM2 (for a serial board) or COM4, COM5, COM7, or higher (for a USB board) - to find out, you look for USB serial device in the ports section of the Windows Device Manager. On Linux, it should be /dev/ttyUSB0, /dev/ttyUSB1 or similar.

Once you've selected the correct serial port and board, press the upload button in the toolbar or select the Upload to I/O Board item from the File menu. Current Arduino boards will reset automatically and begin the upload. With older boards that lack auto-reset, you'll need to press the reset button on the board just before starting the upload. On most boards, you'll see the RX and TX LEDs blink as the sketch is uploaded. The Arduino environment will display a message when the upload is complete, or show an error.

When you upload a sketch, you're using the Arduino bootloader, a small program that has been loaded on to the microcontroller on your board. It allows you to upload code without using any additional hardware. The bootloader is active for a few seconds when the board resets; then it starts whichever sketch was most recently uploaded to the microcontroller. The bootloader will blink the on-board (pin 13) LED when it starts (i.e. when the board resets).

Libraries

Libraries provide extra functionality for use in sketches, e.g. working with hardware or manipulating data. To use a library in a sketch, select it from the Sketch > Import Library menu. This will insert one or more #include statements at the top of the sketch and compile the library with your sketch. Because libraries are uploaded to the board with your sketch, they increase the amount of space it takes up. If a sketch no longer needs a library, simply delete its #include statements from the top of your code.

There is a list of libraries in the reference. Some libraries are included with the Arduino software. Others can be downloaded from a variety of sources. To install these third-party libraries, create a directory called libraries within your sketchbook directory. Then unzip the library there. For example, to install the DateTime library, its files should be in the /libraries/DateTime sub-folder of your sketchbook folder.

December 23, 2009, at 06:47 PM by David A. Mellis -
Changed lines 91-94 from:
  • Board
    Select the board that you're using. See below for descriptions of the various boards.

  • Serial Port
    This menu contains all the serial devices (real or virtual) on your machine. It should automatically refresh every time you open the top-level tools menu.

    Before uploading your sketch, you need to select the item from this menu that represents your Arduino board. On the Mac, this is probably something like /dev/tty.usbserial-1B1 (for a USB board), or /dev/tty.USA19QW1b1P1.1 (for a serial board connected with a Keyspan USB-to-Serial adapter). On Windows, it's probably COM1 or COM2 (for a serial board) or COM4, COM5, COM7, or higher (for a USB board) - to find out, you look for USB serial device in the ports section of the Windows Device Manager. On Linux, it should be /dev/ttyUSB0, /dev/ttyUSB1 or similar.
to:
  • Board
    Select the board that you're using. See below for descriptions of the various boards.

  • Serial Port
    This menu contains all the serial devices (real or virtual) on your machine. It should automatically refresh every time you open the top-level tools menu.
Added lines 116-117:

Before uploading your sketch, you need to select the item from the Tools > Serial Port menu that represents your Arduino board. On the Mac, this is probably something like /dev/tty.usbserial-1B1 (for a USB board), or /dev/tty.USA19QW1b1P1.1 (for a serial board connected with a Keyspan USB-to-Serial adapter). On Windows, it's probably COM1 or COM2 (for a serial board) or COM4, COM5, COM7, or higher (for a USB board) - to find out, you look for USB serial device in the ports section of the Windows Device Manager. On Linux, it should be /dev/ttyUSB0, /dev/ttyUSB1 or similar.

Added line 130:

December 23, 2009, at 06:45 PM by David A. Mellis -
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Arduino Development Environment

to:

Arduino Development Environment

December 23, 2009, at 06:45 PM by David A. Mellis -
Deleted lines 0-1:

Environment

December 23, 2009, at 06:45 PM by David A. Mellis -
Changed lines 67-70 from:

Serial Monitor
Displays serial data being sent from the Arduino board (USB or serial board). To send data to the board, enter text and click on the "send" button or press enter. Choose the baud rate from the drop-down that matches the rate passed to Serial.begin in your sketch. Note that on Mac or Linux, the Arduino board will reset (rerun your sketch from the beginning) when you connect with the serial monitor.

You can also talk to the board from Processing, Flash, MaxMSP, etc (see the interfacing page for details).

to:

Serial Monitor
Opens the serial monitor.

Added lines 115-124:

Uploading

Serial Monitor

Displays serial data being sent from the Arduino board (USB or serial board). To send data to the board, enter text and click on the "send" button or press enter. Choose the baud rate from the drop-down that matches the rate passed to Serial.begin in your sketch. Note that on Mac or Linux, the Arduino board will reset (rerun your sketch from the beginning) when you connect with the serial monitor.

You can also talk to the board from Processing, Flash, MaxMSP, etc (see the interfacing page for details).

December 23, 2009, at 06:43 PM by David A. Mellis -
Deleted lines 72-73:


Changed lines 124-152 from:

The board selection has two effects: the parameters (e.g. CPU speed and baud rate) used when compiling and uploading sketches; and the file and fuse settings used by the burn bootloader command. Some of the board definitions differ only in the latter, so even if you've been uploading successfully with a particular selection you'll want to check it before burning the bootloader.

Arduino Duemilanove or Nano w/ ATmega328
An ATmega328 running at 16 MHz with auto-reset. Also used for the 16 MHz (5V) versions of the Arduino Pro or Pro Mini with an ATmega328.

Arduino Diecimila, Duemilanove, or Nano w/ ATmega168
An ATmega168 running at 16 MHz with auto-reset. Compilation and upload is equivalent to Arduino NG or older w/ ATmega168, but the bootloader burned has a faster timeout (and blinks the pin 13 LED only once on reset). Also used for the 16 MHz (5V) versions of the Arduino Pro and Pro Mini with an ATmega168.

Arduino Mega
An ATmega1280 running at 16 MHz with auto-reset.

Arduino Mini
Equivalent to Arduino NG or older w/ ATmega168 (i.e. an ATmega168 running at 16 MHz without auto-reset).

Arduino BT
ATmega168 running at 16 MHz. The bootloader burned includes codes to initialize the on-board bluetooth module.

LilyPad Arduino w/ ATmega328
An ATmega328 running at 8 MHz (3.3V) with auto-reset. Equivalent to Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328.

LilyPad Arduino w/ ATmega168
An ATmega168 running at 8 MHz. Compilation and upload is equivalent to the Arduino Pro or Pro Mini (8 MHz) w/ ATmega168. The bootloader burned, however, has a slower timeout (and blinks the pin 13 LED three times on reset) because the original versions of the LilyPad didn't support auto-reset. They also didn't include an external clock, so the burn bootloader command configures the fuses of ATmega168 for an internal 8 MHz clock.

If you have a recent version of the LilyPad, (w/ a 6-pin programming header), you'll want to select Arduino Pro or Pro Mini (8 MHz) w/ ATmega168 before burning the bootloader.

Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328
An ATmega328 running at 8 MHz (3.3V) with auto-reset. Equivalent to LilyPad Arduino w/ ATmega328.

Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega168
An ATmega168 running at 8 MHz (3.3V) with auto-reset.

Arduino NG or older w/ ATmega168
An ATmega168 running at 16 MHz without auto-reset. Compilation and upload is equivalent to Arduino Diecimila or Duemilanove w/ ATmega168, but the bootloader burned has a slower timeout (and blinks the pin 13 LED three times on reset).

Arduino NG or older w/ ATmega8
An ATmega8 running at 16 MHz without auto-reset.

to:

The board selection has two effects: the parameters (e.g. CPU speed and baud rate) used when compiling and uploading sketches; and the file and fuse settings used by the burn bootloader command. Some of the board definitions differ only in the latter, so even if you've been uploading successfully with a particular selection you'll want to check it before burning the bootloader.

  • Arduino Duemilanove or Nano w/ ATmega328
    An ATmega328 running at 16 MHz with auto-reset. Also used for the 16 MHz (5V) versions of the Arduino Pro or Pro Mini with an ATmega328.

  • Arduino Diecimila, Duemilanove, or Nano w/ ATmega168
    An ATmega168 running at 16 MHz with auto-reset. Compilation and upload is equivalent to Arduino NG or older w/ ATmega168, but the bootloader burned has a faster timeout (and blinks the pin 13 LED only once on reset). Also used for the 16 MHz (5V) versions of the Arduino Pro and Pro Mini with an ATmega168.

  • Arduino Mega
    An ATmega1280 running at 16 MHz with auto-reset.

  • Arduino Mini
    Equivalent to Arduino NG or older w/ ATmega168 (i.e. an ATmega168 running at 16 MHz without auto-reset).

  • Arduino BT
    ATmega168 running at 16 MHz. The bootloader burned includes codes to initialize the on-board bluetooth module.

  • LilyPad Arduino w/ ATmega328
    An ATmega328 running at 8 MHz (3.3V) with auto-reset. Equivalent to Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328.

  • LilyPad Arduino w/ ATmega168
    An ATmega168 running at 8 MHz. Compilation and upload is equivalent to the Arduino Pro or Pro Mini (8 MHz) w/ ATmega168. The bootloader burned, however, has a slower timeout (and blinks the pin 13 LED three times on reset) because the original versions of the LilyPad didn't support auto-reset. They also didn't include an external clock, so the burn bootloader command configures the fuses of ATmega168 for an internal 8 MHz clock.

    If you have a recent version of the LilyPad, (w/ a 6-pin programming header), you'll want to select Arduino Pro or Pro Mini (8 MHz) w/ ATmega168 before burning the bootloader.

  • Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328
    An ATmega328 running at 8 MHz (3.3V) with auto-reset. Equivalent to LilyPad Arduino w/ ATmega328.

  • Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega168
    An ATmega168 running at 8 MHz (3.3V) with auto-reset.

  • Arduino NG or older w/ ATmega168
    An ATmega168 running at 16 MHz without auto-reset. Compilation and upload is equivalent to Arduino Diecimila or Duemilanove w/ ATmega168, but the bootloader burned has a slower timeout (and blinks the pin 13 LED three times on reset).

  • Arduino NG or older w/ ATmega8
    An ATmega8 running at 16 MHz without auto-reset.

December 23, 2009, at 06:41 PM by David A. Mellis -
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December 23, 2009, at 06:39 PM by David A. Mellis -
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Board Descriptions

to:

Boards

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to:

Arduino Duemilanove or Nano w/ ATmega328
An ATmega328 running at 16 MHz with auto-reset. Also used for the 16 MHz (5V) versions of the Arduino Pro or Pro Mini with an ATmega328.

Arduino Diecimila, Duemilanove, or Nano w/ ATmega168
An ATmega168 running at 16 MHz with auto-reset. Compilation and upload is equivalent to Arduino NG or older w/ ATmega168, but the bootloader burned has a faster timeout (and blinks the pin 13 LED only once on reset). Also used for the 16 MHz (5V) versions of the Arduino Pro and Pro Mini with an ATmega168.

Arduino Mega
An ATmega1280 running at 16 MHz with auto-reset.

Arduino Mini
Equivalent to Arduino NG or older w/ ATmega168 (i.e. an ATmega168 running at 16 MHz without auto-reset).

Arduino BT
ATmega168 running at 16 MHz. The bootloader burned includes codes to initialize the on-board bluetooth module.

LilyPad Arduino w/ ATmega328
An ATmega328 running at 8 MHz (3.3V) with auto-reset. Equivalent to Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328.

LilyPad Arduino w/ ATmega168
An ATmega168 running at 8 MHz. Compilation and upload is equivalent to the Arduino Pro or Pro Mini (8 MHz) w/ ATmega168. The bootloader burned, however, has a slower timeout (and blinks the pin 13 LED three times on reset) because the original versions of the LilyPad didn't support auto-reset. They also didn't include an external clock, so the burn bootloader command configures the fuses of ATmega168 for an internal 8 MHz clock.

Changed lines 144-163 from:
to:

Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328
An ATmega328 running at 8 MHz (3.3V) with auto-reset. Equivalent to LilyPad Arduino w/ ATmega328.

Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega168
An ATmega168 running at 8 MHz (3.3V) with auto-reset.

Arduino NG or older w/ ATmega168
An ATmega168 running at 16 MHz without auto-reset. Compilation and upload is equivalent to Arduino Diecimila or Duemilanove w/ ATmega168, but the bootloader burned has a slower timeout (and blinks the pin 13 LED three times on reset).

Arduino NG or older w/ ATmega8
An ATmega8 running at 16 MHz without auto-reset.

December 23, 2009, at 06:35 PM by David A. Mellis -
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Verify/Compile

to:
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Checks your code for errors.

Stop

to:
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Stops the serial monitor, or unhighlight other buttons.

New

to:
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Creates a new sketch.

Open

to:
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Presents a menu of all the sketches in your sketchbook. Clicking one will open it within the current window.

to:
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Save

to:
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Saves your sketch.

Upload to I/O Board

to:
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Compiles your code and uploads it to the Arduino I/O board. Uses the selected items in the Tools > Board and Tools > Serial Port menus.

Serial Monitor

to:
Changed lines 65-66 from:

Displays serial data being sent from the Arduino board (USB or serial board). To send data to the board, enter text and click on the "send" button or press enter. Choose the baud rate from the drop-down that matches the rate passed to Serial.begin in your sketch. Note that on Mac or Linux, the Arduino board will reset (rerun your sketch from the beginning) when you connect with the serial monitor.

to:
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December 23, 2009, at 06:30 PM by David A. Mellis -
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Copy for Discourse

Copies the code of your sketch to the clipboard in a forum suitable for posting to the forum, complete with syntax coloring.

Copy as HTML

Copies the code of your sketch to the clipboard as HTML, suitable for embedding in web pages.

to:
  • Copy for Discourse
    Copies the code of your sketch to the clipboard in a forum suitable for posting to the forum, complete with syntax coloring.

  • Copy as HTML
    Copies the code of your sketch to the clipboard as HTML, suitable for embedding in web pages.
Changed lines 65-80 from:

Verify/Compile

Checks your sketch for errors.

Import Library

Adds a library to your sketch by inserting #include statements at the code of your code. For more details, see libraries below.

Show Sketch Folder

Opens the sketch folder on the desktop.

Add File...

Adds a source file to the sketch (it will be copied from its current location). The new file appears in a new tab in the sketch window. Files can be removed from the sketch using the tab menu.

to:
  • Verify/Compile
    Checks your sketch for errors.

  • Import Library
    Adds a library to your sketch by inserting #include statements at the code of your code. For more details, see libraries below.

  • Show Sketch Folder
    Opens the sketch folder on the desktop.

  • Add File...
    Adds a source file to the sketch (it will be copied from its current location). The new file appears in a new tab in the sketch window. Files can be removed from the sketch using the tab menu.
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Auto Format

This formats your code nicely: i.e. indents it so that opening and closing curly braces line up, and that the statements instead curly braces are indented more.

Board

Select the board that you're using. This controls the way that your sketch is compiled and uploaded as well as the behavior of the Burn Bootloader menu items. See below for descriptions of the various boards.

Serial Port

This menu contains all the serial devices (real or virtual) on your machine. It should automatically refresh every time you open the top-level tools menu.

Before uploading your sketch, you need to select the item from this menu that represents your Arduino board. On the Mac, this is probably something like /dev/tty.usbserial-1B1 (for a USB board), or /dev/tty.USA19QW1b1P1.1 (for a serial board connected with a Keyspan USB-to-Serial adapter). On Windows, it's probably COM1 or COM2 (for a serial board) or COM4, COM5, COM7, or higher (for a USB board) - to find out, you look for USB serial device in the ports section of the Windows Device Manager. On Linux, it should be /dev/ttyUSB0, /dev/ttyUSB1 or similar.

Burn Bootloader

The items in this menu allow you to burn a bootloader onto the microcontroller on an Arduino board. This is not required for normal use of an Arduino board but is useful if you purchase a new ATmega (which normally come without a bootloader). Ensure that you've selected the correct board from the Boards menu before burning the bootloader. When using an AVR ISP, you'll need to select the item corresponding to your programmer from the Serial Port menu.

to:
  • Auto Format
    This formats your code nicely: i.e. indents it so that opening and closing curly braces line up, and that the statements instead curly braces are indented more.

  • Board
    Select the board that you're using. See below for descriptions of the various boards.

  • Serial Port
    This menu contains all the serial devices (real or virtual) on your machine. It should automatically refresh every time you open the top-level tools menu.

    Before uploading your sketch, you need to select the item from this menu that represents your Arduino board. On the Mac, this is probably something like /dev/tty.usbserial-1B1 (for a USB board), or /dev/tty.USA19QW1b1P1.1 (for a serial board connected with a Keyspan USB-to-Serial adapter). On Windows, it's probably COM1 or COM2 (for a serial board) or COM4, COM5, COM7, or higher (for a USB board) - to find out, you look for USB serial device in the ports section of the Windows Device Manager. On Linux, it should be /dev/ttyUSB0, /dev/ttyUSB1 or similar.

  • Burn Bootloader
    The items in this menu allow you to burn a bootloader onto the microcontroller on an Arduino board. This is not required for normal use of an Arduino board but is useful if you purchase a new ATmega (which normally come without a bootloader). Ensure that you've selected the correct board from the Boards menu before burning the bootloader. When using an AVR ISP, you'll need to select the item corresponding to your programmer from the Serial Port menu.
December 23, 2009, at 06:25 PM by David A. Mellis -
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to:

Environment

Arduino Development Environment

The Arduino development environment contains a text editor for writing code, a message area, a text console, a toolbar with buttons for common functions, and a series of menus. It connects to the Arduino hardware to upload programs and communicate with them.

Software written using Arduino are called sketches. These sketches are written in the text editor. It has features for cutting/pasting and for searching/replacing text. The message area gives feedback while saving and exporting and also displays errors. The console displays text output by the Arduino environment including complete error messages and other information. The toolbar buttons allow you to verify and upload programs, create, open, and save sketches, and open the serial monitor:

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Additional commands are found within the five menus: File, Edit, Sketch, Tools, Help. The menus are context sensitive which means only those items relevant to the work currently being carried out are available.

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Tabs and Multiple Files

Allows you to manage sketches with more than one file (each of which appears in its own tab). These can be normal Arduino code files (no extension), C files (.c extension), C++ files (.cpp), or header files (.h).

December 23, 2009, at 05:49 PM by David A. Mellis -
Changed lines 124-125 from:

Some libraries are included with the Arduino software. Others can be downloaded from a variety of sources. To install these third-party libraries, create a directory called libraries within your sketchbook directory. Then unzip the library there. For example, to install the DateTime library, its files should be in the /libraries/DateTime sub-folder of your sketchbook folder.

to:

There is a list of libraries in the reference. Some libraries are included with the Arduino software. Others can be downloaded from a variety of sources. To install these third-party libraries, create a directory called libraries within your sketchbook directory. Then unzip the library there. For example, to install the DateTime library, its files should be in the /libraries/DateTime sub-folder of your sketchbook folder.

December 23, 2009, at 05:48 PM by David A. Mellis -
Changed lines 122-123 from:

Some libraries are included with the Arduino software. Others can be downloaded from a variety of sources. To install these third-party libraries, create a directory called libraries within your sketchbook directory. Then unzip the library to the libraries directory.

to:

Libraries provide extra functionality for use in sketches, e.g. working with hardware or manipulating data. To use a library in a sketch, select it from the Sketch > Import Library menu. This will insert one or more #include statements at the top of the sketch and compile the library with your sketch. Because libraries are uploaded to the board with your sketch, they increase the amount of space it takes up. If a sketch no longer needs a library, simply delete its #include statements from the top of your code.

Some libraries are included with the Arduino software. Others can be downloaded from a variety of sources. To install these third-party libraries, create a directory called libraries within your sketchbook directory. Then unzip the library there. For example, to install the DateTime library, its files should be in the /libraries/DateTime sub-folder of your sketchbook folder.

December 23, 2009, at 05:30 PM by David A. Mellis -
Changed lines 82-83 from:

Adds a library to your sketch by inserting #include statements at the code of your code. For more details, see below.

to:

Adds a library to your sketch by inserting #include statements at the code of your code. For more details, see libraries below.

December 23, 2009, at 05:29 PM by David A. Mellis -
Changed lines 82-83 from:

Uses a library in your sketch. Works by adding #includes to the top of your code. This makes extra functionality available to your sketch, but increases its size. To stop using a library, delete the appropriate #includes from the top of your sketch. For more details, see the page on Libraries.

to:

Adds a library to your sketch by inserting #include statements at the code of your code. For more details, see below.

December 23, 2009, at 05:27 PM by David A. Mellis -
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November 29, 2009, at 01:48 AM by David A. Mellis -
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November 29, 2009, at 01:46 AM by David A. Mellis -
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November 29, 2009, at 01:44 AM by David A. Mellis -
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Preferences

Some preferences can be set in the preferences dialog (found under the Arduino menu on the Mac, or File on Windows and Linux). The rest can be found in the preferences file, whose location is shown in the preference dialog.

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November 01, 2009, at 05:40 PM by David A. Mellis -
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Some preferences can be set in the preferences dialog (found under the Arduino menu on the Mac, or File on Windows and Linux). The rest can be found in the preference files.

to:

Some preferences can be set in the preferences dialog (found under the Arduino menu on the Mac, or File on Windows and Linux). The rest can be found in the preferences file, whose location is shown in the preference dialog.

August 15, 2009, at 02:38 PM by David A. Mellis -
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Presents a menu of all the sketches in your sketchbook. Note: due to a bug in Java, this menu doesn't scroll; if you need to open a sketch late in the list, use the File | Sketchbook menu instead.

to:

Presents a menu of all the sketches in your sketchbook. Clicking one will open it within the current window.

Note: due to a bug in Java, this menu doesn't scroll; if you need to open a sketch late in the list, use the File | Sketchbook menu instead.

Changed lines 44-45 from:

Uploads your code to the Arduino I/O board. Make sure to save or verify your sketch before uploading it.

to:

Compiles your code and uploads it to the Arduino I/O board. Uses the selected items in the Tools > Board and Tools > Serial Port menus.

Changed lines 58-59 from:

Allows you to manage sketches with more than one file (each of which appears in its own tab). These can be normal Arduino code files (no extension), C files (.c extension), C++ files (.cpp), or header files (.h). See the description of the build process for details of how these are handled.

to:

Allows you to manage sketches with more than one file (each of which appears in its own tab). These can be normal Arduino code files (no extension), C files (.c extension), C++ files (.cpp), or header files (.h).

Added lines 64-73:

Edit

Copy for Discourse

Copies the code of your sketch to the clipboard in a forum suitable for posting to the forum, complete with syntax coloring.

Copy as HTML

Copies the code of your sketch to the clipboard as HTML, suitable for embedding in web pages.

Changed lines 90-92 from:

Adds another source file to the sketch. The new file appears in a new tab in the sketch window. This facilitates and larger projects with multiple source files. Files can be removed from a sketch using the tab menu.

to:

Adds a source file to the sketch (it will be copied from its current location). The new file appears in a new tab in the sketch window. Files can be removed from the sketch using the tab menu.

Deleted lines 97-104:

Copy for Discourse

Copies the code of your sketch to the clipboard in a forum suitable for posting to the forum, complete with syntax coloring.

Copy as HTML

Copies the code of your sketch to the clipboard as HTML, suitable for embedding in web pages.

Changed lines 100-101 from:

Select the board that you're using. This controls the way that your sketch is compiled and uploaded as well as the behavior of the Burn Bootloader menu items. See below for details.

to:

Select the board that you're using. This controls the way that your sketch is compiled and uploaded as well as the behavior of the Burn Bootloader menu items. See below for descriptions of the various boards.

Changed lines 106-107 from:

Before uploading your sketch, you need to select the item from this menu that represents your Arduino board. On the Mac, this is probably something like /dev/tty.usbserial-1B1 (for a USB board), or /dev/tty.USA19QW1b1P1.1 (for a serial board connected with a Keyspan USB-to-Serial adapter). On Windows, it's probably COM1 or COM2 (for a serial board) or COM4, COM5, COM7, or higher (for a USB board) - to find out, you look for USB serial device in the ports section of the Windows Device Manager.

to:

Before uploading your sketch, you need to select the item from this menu that represents your Arduino board. On the Mac, this is probably something like /dev/tty.usbserial-1B1 (for a USB board), or /dev/tty.USA19QW1b1P1.1 (for a serial board connected with a Keyspan USB-to-Serial adapter). On Windows, it's probably COM1 or COM2 (for a serial board) or COM4, COM5, COM7, or higher (for a USB board) - to find out, you look for USB serial device in the ports section of the Windows Device Manager. On Linux, it should be /dev/ttyUSB0, /dev/ttyUSB1 or similar.

Changed lines 110-111 from:

The items in this menu allow you to burn a bootloader onto your board with a variety of programmers. This is not required for normal use of an Arduino board, but may be useful if you purchase additional ATmega's or are building a board yourself. Ensure that you've selected the correct board from the Boards menu beforehand. To burn a bootloader with the AVR ISP, you need to select the item corresponding to your programmer from the Serial Port menu. Instructions are available for building a parallel programmer.

to:

The items in this menu allow you to burn a bootloader onto the microcontroller on an Arduino board. This is not required for normal use of an Arduino board but is useful if you purchase a new ATmega (which normally come without a bootloader). Ensure that you've selected the correct board from the Boards menu before burning the bootloader. When using an AVR ISP, you'll need to select the item corresponding to your programmer from the Serial Port menu.

Changed lines 121-122 from:

Arduino Duemilanove w/ ATmega328

to:

Arduino Duemilanove or Nano w/ ATmega328

Changed lines 125-126 from:

Arduino Diecimila or Duemilanove w/ ATmega168

to:

Arduino Diecimila, Duemilanove, or Nano w/ ATmega168

Deleted lines 136-139:

Arduino Nano

Equivalent to Arduino Diecimila or Duemilanove w/ ATmega168 (i.e. an ATmega168 running at 16 MHz with auto-reset).

June 07, 2009, at 09:39 PM by David A. Mellis -
Added lines 91-94:

Copy as HTML

Copies the code of your sketch to the clipboard as HTML, suitable for embedding in web pages.

June 07, 2009, at 09:38 PM by David A. Mellis -
Added lines 109-110:

The board selection has two effects: the parameters (e.g. CPU speed and baud rate) used when compiling and uploading sketches; and the file and fuse settings used by the burn bootloader command. Some of the board definitions differ only in the latter, so even if you've been uploading successfully with a particular selection you'll want to check it before burning the bootloader.

June 07, 2009, at 09:31 PM by David A. Mellis - re-ordering board descriptions to match menu order in Arduino 0016.
Deleted lines 119-144:
Added lines 124-131:

Arduino Mini

Equivalent to Arduino NG or older w/ ATmega168 (i.e. an ATmega168 running at 16 MHz without auto-reset).

Arduino Nano

Equivalent to Arduino Diecimila or Duemilanove w/ ATmega168 (i.e. an ATmega168 running at 16 MHz with auto-reset).

Changed lines 136-137 from:

LilyPad Arduino

to:
Added lines 148-163:

Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328

An ATmega328 running at 8 MHz (3.3V) with auto-reset. Equivalent to LilyPad Arduino w/ ATmega328.

Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega168

An ATmega168 running at 8 MHz (3.3V) with auto-reset.

Arduino NG or older w/ ATmega168

An ATmega168 running at 16 MHz without auto-reset. Compilation and upload is equivalent to Arduino Diecimila or Duemilanove w/ ATmega168, but the bootloader burned has a slower timeout (and blinks the pin 13 LED three times on reset).

Arduino NG or older w/ ATmega8

An ATmega8 running at 16 MHz without auto-reset.

May 19, 2009, at 09:16 PM by David A. Mellis -
Changed lines 156-157 from:

An ATmega168 running at 8 MHz. Compilation and upload is equivalent to the Arduino Pro or Pro Mini (8 MHz) w/ ATmega168. The bootloader burned, however, has a slower timeout (and blinks the pin 13 LED three times on reset) because the original versions of the LilyPad didn't support auto-reset. Newer versions do, so if you need to reburn the bootloader on a recent LilyPad (w/ a 6-pin programming header), you should select Arduino Pro or Pro Mini (8 MHz) w/ ATmega168.

to:

An ATmega168 running at 8 MHz. Compilation and upload is equivalent to the Arduino Pro or Pro Mini (8 MHz) w/ ATmega168. The bootloader burned, however, has a slower timeout (and blinks the pin 13 LED three times on reset) because the original versions of the LilyPad didn't support auto-reset. They also didn't include an external clock, so the burn bootloader command configures the fuses of ATmega168 for an internal 8 MHz clock.

If you have a recent version of the LilyPad, (w/ a 6-pin programming header), you'll want to select Arduino Pro or Pro Mini (8 MHz) w/ ATmega168 before burning the bootloader.

May 08, 2009, at 02:12 PM by David A. Mellis -
Added lines 109-111:
Deleted lines 115-118:

Arduino Pro or Pro Mini (8 MHz) w/ ATmega328

An ATmega328 running at 8 MHz (3.3V) with auto-reset.

Deleted lines 119-122:

Arduino Nano

Equivalent to Arduino Diecimila or Duemilanove w/ ATmega168 (i.e. an ATmega168 running at 16 MHz with auto-reset).

Changed lines 124-131 from:

Arduino Mini

Equivalent to Arduino NG or older w/ ATmega168 (i.e. an ATmega168 running at 16 MHz without auto-reset).

LilyPad Arduino

An ATmega168 running at 8 MHz. Compilation and upload is equivalent to the Arduino Pro or Pro Mini (8 MHz) w/ ATmega168. The bootloader burned, however, has a slower timeout (and blinks the pin 13 LED three times on reset) because the original versions of the LilyPad didn't support auto-reset. Newer versions do, so if you need to reburn the bootloader on a recent LilyPad (w/ a 6-pin programming header), you should select Arduino Pro or Pro Mini (8 MHz) w/ ATmega168.

to:

Arduino NG or older w/ ATmega8

An ATmega8 running at 16 MHz without auto-reset.

Arduino Pro or Pro Mini (8 MHz) w/ ATmega328

An ATmega328 running at 8 MHz (3.3V) with auto-reset.

Changed lines 134-135 from:

An ATmega168 running at 8 MHz with auto-reset.

to:
Changed lines 154-157 from:

Arduino NG or older w/ ATmega8

ATmega8 running at 16 MHz without auto-reset.

to:
May 08, 2009, at 02:08 PM by David A. Mellis -
Changed lines 93-94 from:

Select the board that you're using. This controls the way that your sketch is compiled and uploaded as well as the behavior of the Burn Bootloader menu items.

to:

Select the board that you're using. This controls the way that your sketch is compiled and uploaded as well as the behavior of the Burn Bootloader menu items. See below for details.

Added lines 107-152:

Board Descriptions

Arduino Duemilanove w/ ATmega328

An ATmega328 running at 16 MHz with auto-reset. Also used for the 16 MHz (5V) versions of the Arduino Pro or Pro Mini with an ATmega328.

Arduino Pro or Pro Mini (8 MHz) w/ ATmega328

An ATmega328 running at 8 MHz (3.3V) with auto-reset.

Arduino Diecimila or Duemilanove w/ ATmega168

An ATmega168 running at 16 MHz with auto-reset. Compilation and upload is equivalent to Arduino NG or older w/ ATmega168, but the bootloader burned has a faster timeout (and blinks the pin 13 LED only once on reset). Also used for the 16 MHz (5V) versions of the Arduino Pro and Pro Mini with an ATmega168.

Arduino Nano

Equivalent to Arduino Diecimila or Duemilanove w/ ATmega168 (i.e. an ATmega168 running at 16 MHz with auto-reset).

Arduino NG or older w/ ATmega168

An ATmega168 running at 16 MHz without auto-reset. Compilation and upload is equivalent to Arduino Diecimila or Duemilanove w/ ATmega168, but the bootloader burned has a slower timeout (and blinks the pin 13 LED three times on reset).

Arduino Mini

Equivalent to Arduino NG or older w/ ATmega168 (i.e. an ATmega168 running at 16 MHz without auto-reset).

LilyPad Arduino

An ATmega168 running at 8 MHz. Compilation and upload is equivalent to the Arduino Pro or Pro Mini (8 MHz) w/ ATmega168. The bootloader burned, however, has a slower timeout (and blinks the pin 13 LED three times on reset) because the original versions of the LilyPad didn't support auto-reset. Newer versions do, so if you need to reburn the bootloader on a recent LilyPad (w/ a 6-pin programming header), you should select Arduino Pro or Pro Mini (8 MHz) w/ ATmega168.

Arduino Pro or Pro Mini (8 MHz) w/ ATmega168

An ATmega168 running at 8 MHz with auto-reset.

Arduino Mega

An ATmega1280 running at 16 MHz with auto-reset.

Arduino BT

ATmega168 running at 16 MHz. The bootloader burned includes codes to initialize the on-board bluetooth module.

Arduino NG or older w/ ATmega8

ATmega8 running at 16 MHz without auto-reset.

December 26, 2008, at 05:03 PM by David A. Mellis -
Changed lines 109-112 from:

Some preferences can be set in the preferences dialog (found under the Arduino menu on the Mac, or File on Windows and Linux). The rest can be found in the preference files.

to:

Some preferences can be set in the preferences dialog (found under the Arduino menu on the Mac, or File on Windows and Linux). The rest can be found in the preference files.

April 24, 2008, at 05:28 AM by David A. Mellis -
Changed line 3 from:
to:
January 30, 2008, at 04:41 PM by David A. Mellis -
Added lines 52-53:

Tab Menu

Changed lines 78-80 from:

Adds another source file to the sketch. The new file appears in a new tab in the sketch window. This facilitates cut and paste between sketches, and larger projects with multiple source files. Deleting extra files in a sketch must be done manually be opening the sketch folder and deleting the unwanted file.

to:

Adds another source file to the sketch. The new file appears in a new tab in the sketch window. This facilitates and larger projects with multiple source files. Files can be removed from a sketch using the tab menu.

January 30, 2008, at 02:12 PM by Paul Badger -
Changed lines 76-78 from:

Adds another source file to the sketch. This facilitates cut and paste between sketches, and larger projects with multiple source files. Deleting extra files in a sketch must be done manually be opening the sketch folder and deleting the unwanted file.

to:

Adds another source file to the sketch. The new file appears in a new tab in the sketch window. This facilitates cut and paste between sketches, and larger projects with multiple source files. Deleting extra files in a sketch must be done manually be opening the sketch folder and deleting the unwanted file.

January 30, 2008, at 02:09 PM by Paul Badger -
Changed lines 70-71 from:

''Show Sketch Folder"

to:

Show Sketch Folder

Changed lines 74-75 from:

''Add File..."

to:

Add File...

January 30, 2008, at 02:08 PM by Paul Badger -
Added lines 70-78:

''Show Sketch Folder"

Opens the sketch folder on the desktop.

''Add File..."

Adds another source file to the sketch. This facilitates cut and paste between sketches, and larger projects with multiple source files. Deleting extra files in a sketch must be done manually be opening the sketch folder and deleting the unwanted file.

January 05, 2008, at 05:29 AM by David A. Mellis -
Added lines 54-55:

Allows you to manage sketches with more than one file (each of which appears in its own tab). These can be normal Arduino code files (no extension), C files (.c extension), C++ files (.cpp), or header files (.h). See the description of the build process for details of how these are handled.

January 05, 2008, at 05:25 AM by David A. Mellis -
Added lines 52-53:
January 05, 2008, at 05:13 AM by David A. Mellis -
Added lines 72-75:

Copy for Discourse

Copies the code of your sketch to the clipboard in a forum suitable for posting to the forum, complete with syntax coloring.

November 02, 2007, at 10:24 PM by David A. Mellis -
Changed line 90 from:

Some preferences can be set in the preferences dialog (found under the Arduino menu on the Mac, or File on Windows and Linux). The rest can be found in the preferences files.

to:

Some preferences can be set in the preferences dialog (found under the Arduino menu on the Mac, or File on Windows and Linux). The rest can be found in the preference files.

November 02, 2007, at 10:24 PM by David A. Mellis -
Changed line 90 from:

Some preferences can be set in the preferences dialog (found under the Arduino menu on the Mac, or File on Windows and Linux). The rest can be found in the preferences.txt file.

to:

Some preferences can be set in the preferences dialog (found under the Arduino menu on the Mac, or File on Windows and Linux). The rest can be found in the preferences files.

November 02, 2007, at 10:24 PM by David A. Mellis -
Changed lines 64-65 from:

Uses a library in your sketch. Works by adding #includes to the top of your code. This makes extra functionality available to your sketch, but increases its size. To stop using a library, delete the appropriate #includes from the top of your sketch. For more details, see the page on libraries.

to:

Uses a library in your sketch. Works by adding #includes to the top of your code. This makes extra functionality available to your sketch, but increases its size. To stop using a library, delete the appropriate #includes from the top of your sketch. For more details, see the page on Libraries.

October 22, 2007, at 05:52 PM by David A. Mellis -
Changed lines 72-75 from:

Microcontroller (MCU)

This menu lets you choose which microcontroller you're using; it should match the name (up to the dash) of the chip on your Arduino board (e.g. if your chip says "ATMEGA168-20PU", you would choose "atmega168"). New Arduino boards use the ATmega168, but some older ones have ATmega8s.

to:

Board

Select the board that you're using. This controls the way that your sketch is compiled and uploaded as well as the behavior of the Burn Bootloader menu items.

Deleted lines 81-88:

Burn Diecimila Bootloader

This burns the Arduino Diecimila ATmega168 bootloader to your Arduino board using an AVRISP mkII. Only available if you have ATmega168 selected in the Microcontroller submenu. For more details see the bootloader page.

Burn Mini/NG Bootloader

This burns the Arduino Mini/NG bootloader to your Arduino board using an AVRISP mkII. Only available if you have ATmega168 selected in the Microcontroller submenu. For more details see the bootloader page.

Changed lines 84-89 from:

This burns the ATmega8 bootloader to your Arduino board using an AVRISP and the serial port you've selected in the Serial Port submenu. Only available if you have ATmega8 selected in the Microcontroller submenu. For more details see the bootloader page.

Burn Bootloader (parallel)

Windows and Linux only. Burns the bootloader to your Arduino board, using a parallel programmer. This only works with the atmega8 (not the atmega168).

to:

The items in this menu allow you to burn a bootloader onto your board with a variety of programmers. This is not required for normal use of an Arduino board, but may be useful if you purchase additional ATmega's or are building a board yourself. Ensure that you've selected the correct board from the Boards menu beforehand. To burn a bootloader with the AVR ISP, you need to select the item corresponding to your programmer from the Serial Port menu. Instructions are available for building a parallel programmer.

August 07, 2007, at 05:39 PM by David A. Mellis -
Changed lines 48-49 from:

Displays serial data being sent from the Arduino board (USB or serial board). To send data to the board, enter text and click on the "send" button or press enter. Choose the baud rate from the drop-down that matches the rate passed to Serial.begin in your sketch.

to:

Displays serial data being sent from the Arduino board (USB or serial board). To send data to the board, enter text and click on the "send" button or press enter. Choose the baud rate from the drop-down that matches the rate passed to Serial.begin in your sketch. Note that on Mac or Linux, the Arduino board will reset (rerun your sketch from the beginning) when you connect with the serial monitor.

August 07, 2007, at 03:56 AM by David A. Mellis - updating burn bootloader documentation for arduino 0009
Added lines 82-89:

Burn Diecimila Bootloader

This burns the Arduino Diecimila ATmega168 bootloader to your Arduino board using an AVRISP mkII. Only available if you have ATmega168 selected in the Microcontroller submenu. For more details see the bootloader page.

Burn Mini/NG Bootloader

This burns the Arduino Mini/NG bootloader to your Arduino board using an AVRISP mkII. Only available if you have ATmega168 selected in the Microcontroller submenu. For more details see the bootloader page.

Changed lines 92-93 from:

This burns the bootloader to your Arduino board, using an an AVR-ISP connected to the serial port selected in the Serial Port submenu. This only works with the atmega8 (not the atmega168). For more details see the bootloader page.

to:

This burns the ATmega8 bootloader to your Arduino board using an AVRISP and the serial port you've selected in the Serial Port submenu. Only available if you have ATmega8 selected in the Microcontroller submenu. For more details see the bootloader page.

June 16, 2007, at 12:36 AM by David A. Mellis - removing references to ancient versions of the software
Changed lines 48-49 from:

Displays serial data being sent from the Arduino board (USB or serial board). To send data to the board, enter text and click on the "send" button or press enter (in Arduino 0005, pressing enter appends a newline to your text, this was removed in Arduino 0006). Choose the baud rate from the drop-down that matches the rate passed to Serial.begin in your sketch (in version of Arduino prior to 0006, the baud rate is specified in the Tools | Serial Monitor Baud Rate menu).

to:

Displays serial data being sent from the Arduino board (USB or serial board). To send data to the board, enter text and click on the "send" button or press enter. Choose the baud rate from the drop-down that matches the rate passed to Serial.begin in your sketch.

Deleted lines 81-86:

Serial Monitor Baud Rate (Arduino 0005 and earlier)

This menu item controls the baud rate (speed) that the serial monitor uses to communicate with a sketch running on the Arduino board. It must match the value passed to in the code of the sketch. In Arduino 0006, this baud rate is set from a drop-down in the status bar when the serial monitor is enabled.

This baud rate does not affect the process of uploading sketches to the Arduino board; see the FAQ? if you need to change that.

June 16, 2007, at 12:35 AM by David A. Mellis -
Changed lines 74-75 from:

This menu lets you choose which microcontroller you're using; it should match the name (up to the dash) of the chip on your Arduino board (e.g. if your chip says "ATMEGA8-16PI", you would choose "atmega8"). Almost all Arduino boards use the atmega8, but the new Arduino stamps use the atmega168 (which can hold programs which are twice as big).

to:

This menu lets you choose which microcontroller you're using; it should match the name (up to the dash) of the chip on your Arduino board (e.g. if your chip says "ATMEGA168-20PU", you would choose "atmega168"). New Arduino boards use the ATmega168, but some older ones have ATmega8s.

November 04, 2006, at 05:36 PM by David A. Mellis -
Changed lines 64-65 from:

Uses a library in your sketch. Works by adding #includes to the top of your code. This makes extra functionality available to your sketch, but increases its size. To stop using a library, delete the appropriate #includes from the top of your sketch. For more details, see the page on libraries.

to:

Uses a library in your sketch. Works by adding #includes to the top of your code. This makes extra functionality available to your sketch, but increases its size. To stop using a library, delete the appropriate #includes from the top of your sketch. For more details, see the page on libraries.

Changed lines 90-91 from:

This burns the bootloader to your Arduino board, using an an AVR-ISP connected to the serial port selected in the Serial Port submenu. This only works with the atmega8 (not the atmega168). For more details see the bootloader? page.

to:

This burns the bootloader to your Arduino board, using an an AVR-ISP connected to the serial port selected in the Serial Port submenu. This only works with the atmega8 (not the atmega168). For more details see the bootloader page.

Changed lines 94-95 from:

Windows and Linux only. Burns the bootloader to your Arduino board, using a parallel programmer?. This only works with the atmega8 (not the atmega168).

to:

Windows and Linux only. Burns the bootloader to your Arduino board, using a parallel programmer. This only works with the atmega8 (not the atmega168).

Changed line 100 from:

Some preferences can be set in the preferences dialog (found under the Arduino menu on the Mac, or File on Windows and Linux). The rest can be found in the preferences.txt file?.

to:

Some preferences can be set in the preferences dialog (found under the Arduino menu on the Mac, or File on Windows and Linux). The rest can be found in the preferences.txt file.

November 04, 2006, at 05:20 PM by David A. Mellis -
Deleted lines 2-3:
November 04, 2006, at 05:20 PM by David A. Mellis -
Added lines 3-4:
October 26, 2006, at 10:26 PM by David A. Mellis -
Added lines 1-100:

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