Double-click the Arduino application. (Note: if the Arduino software loads in the wrong language, you can change it in the preferences dialog. See the environment page for details.)

When the download is finished, double click the .zip fle. This will expand the Arduino application.

you will need to install the drivers for the FTDI chip on the board. You need to download the latest version of the drivers from the FTDI website. One downloaded, double click the package, and follow the instructions in the installer. You'll need to restart your computer after installing the drivers.

(:include HowtoUpload:)

Select the serial device of the Arduino board from the Tools > Serial Port menu. On the Mac, this should be something with /dev/tty.usbmodem (for the Uno or Mega 2560) or /dev/tty.usbserial (for older boards) in it.

If you're using the Arduino Uno or Arduino Mega 2560, a dialog box will appear telling you that a new network interface has been detected. Click "Network Preferences...", and when it opens, simply click "Apply". The Uno or Mega 2560 will show up as "Not Configured", but it's working properly. Quit System Preferences.

Select the serial device of the Arduino board from the Tools > Serial Port menu. On the Mac, this should be something with /dev/tty.usbmodem (for the Uno) or /dev/tty.usbmodem (for older boards) in it.

selecting an Uno, Mega2560, or newer board

selecting an older FTDI-based board

3 | Install the Software

If you're using an Arduino Uno or Mga 2560, you don't have any drivers to install. Skip ahead to the next step.

If you're using an older board (Duemilanove, Diecimila, or any board with an FTDI driver chip that looks like this:

Attach: FTDIChip.png

you will need to install the drivers for the FTDI chip on the board. Double-click the FTDIUSBSerialDriver_10_4_10_5_10_6.mpkg icon and follow the instructions in the installer. You'll need to restart your computer after installing the drivers. (The latest version of the drivers can be found on the FTDI website.)

(:*toc :)

1 | Get an Arduino board and USB cable

1. Launch the Arduino application
2. Open the blink example
3. Select your board
4. Select the serial port
5. Upload the program

5 | Launch the Arduino application

6 | Open the blink example

7 | Select your board

8 | Select your serial port

Select the serial device of the Arduino board from the Tools > Serial Port menu. On the Mac, this should be something with /dev/tty.usbserial in it.

9 | Upload the program

(:include HowtoBoard:)

6 | Upload a program

5 | Launch Arduino and open an example

Double-click the Arduino application.

1. Get an Arduino board and USB cable
2. Download the Arduino environment
3. Install the USB drivers
4. Connect the board
5. Run the Arduino environment
6. Upload a program
7. Look for the blinking LED
8. Learn to use Arduino

4 | Connect the board

Getting Started w/ Arduino on Mac OS X

The disk image (.dmg) should mount automatically. If it doesn't, double-click it. It should look like the following image.

If this is your first time using an Arduino with your computer, you will need to install the drivers for the FTDI chip on the board. Double-click the FTDIUSBSerialDriver_10_4_10_5_10_6.mpkg icon and follow the instructions in the installer. You'll need to restart your computer after installing the drivers. (The latest version of the drivers can be found on the FTDI website.)

The disk image (.dmg) should mount automatically. If it doesn't, double-click it. It should like the following image.

3 | Install the Application and USB drivers

Copy the Arduino application into the Applications folder (or elsewhere on your computer).

If this is your first time using an Arduino board on this computer, you will need to install the drivers for the FTDI chip on the board. Double-click the FTDIUSBSerialDriver_10_4_10_5_10_6.mpkg icon and follow the instructions in the installer. You'll need to restart your computer after installing the drivers. (The latest version of the drivers can be found on the FTDI website.)

2 | Download the Arduino environment

Get the latest version from the download page.

The disk image (.dmg) should mount automatically. If it doesn't, double-click it.

Select the serial device of the Arduino board from the Tools > Serial Port menu. On the Mac, this should be something with /dev/tty.usbserial in it.

Select the serial device of the Arduino board from the Tools | Serial Port menu. On the Mac, this should be something with /dev/tty.usbserial in it.

Select the serial device of the Arduino board from the Tools | Serial Port menu. On the Mac, this should be something with /dev/tty.usbserial in it.

• FTDIUSBSerialDriver_v2_1_9.dmg for older (PPC) Macs like the Powerbook, iBook, G4 or G5
• FTDIUSBSerialDriver_v2_2_9_Intel.dmg for newer (Intel) Macs like the MacBook, MacBook Pro, or Mac Pro

You'll need to select the correct drivers for your computer. Use:

• the PPC drivers FTDIUSBSerialDriver_v2_1_9.dmg for older Macs like the Powerbook, iBook, G4 or G5
• the Intel drivers FTDIUSBSerialDriver_v2_2_9_Intel.dmg for newer Macs like the MacBook, MacBook Pro, or Mac Pro

(:include HowtoIntro:)

(:include HowtoDownload:)

To program the Arduino board you need the Arduino environment.

Download: the latest version of the software from the download page

When the download finishes, unzip the downloaded file by double-clicking it. This should create a folder with the Arduino software in side. Double-click the folder to open it.

If you have an older Mac like a Powerbook, iBook, G4 or G5, you should use the the PPC drivers: FTDIUSBSerialDriver_v2_1_9.dmg. If you have a newer Mac like an MacBook, MacBook Pro, or Mac Pro, you need the Intel drivers: FTDIUSBSerialDriver_v2_2_9_Intel.dmg. Double-click to mount the disk image and run the included FTDIUSBSerialDriver.pkg.

Download: Arduino 0011

When the download finishes, unzip the downloaded file by double-clicking it. This should create a folder called arduino-0011. Double-click the folder to open it.

On the Mac, mount the FTDIUSBSerialDriver_v2_1_9.dmg (on PPC machines) or the FTDIUSBSerialDriver_v2_2_9_Intel.dmg (on Intel machines) disk image and run the included FTDIUSBSerialDriver.pkg.

Download: Arduino 0010

When the download finishes, unzip the downloaded file by double-clicking it. This should create a folder called arduino-0009. Double-click the folder to open it.

Download: Arduino 0009 for PPC or Arduino 0009 for Intel

When the download finishes, unzip the downloaded file by double-clicking it. This should create a folder called arduino-0008. Double-click the folder to open it.

Download: Arduino 0008 for PPC or Arduino 0008 for Intel

(:include HowtoLED:)

Download: Arduino 0007 for PPC or Arduino 0007 for Intel

When the download finishes, unzip the downloaded file by double-clicking it. This should create a folder called arduino-0007. Double-click the folder to open it.

When the download finishes, unzip the downloaded file by double-clicking it. This should create a folder called arduino-0006. Double-click the folder to open it.

Then, double-click macosx_setup.command. This will open a Terminal and ask you if you want to continue. Type y and press return. When prompted, type your password and press return.

If you are using a USB Arduino, you will need to install the drivers for the FTDI chip on the board. These can be found in the drivers directory of the Arduino distribution.

(The latest version of the drivers can be found on the FTDI website.)

2 | Download the Arduino environment

To program the Arduino board you need the Arduino environment. If you have an older Mac like a Powerbook, iBook, G4 or G5, you need the Arduino for PPC. If you have a newer Mac like an MacBook, MacBook Pro, or Mac Pro, you need the Intel version.

Download: Arduino 0006 for PPC or Arduino 0006 for Intel

(:include HowtoExample:)

Select the serial device of the Arduino board from the Tools | Serial Port menu. On the Mac, this should be something with /dev/tty.usbserial in it.

How To Get Arduino Running on Mac OS X (10.3.9 or later)

(:include HowtoSteps:)

(:include HowtoGet:)

(:include HowtoDownload:)

(:include HowtoConnect:)

(:include HowtoUpload:)

(:include HowtoReferences:)

Arduino Howto

These are the steps you need to follow in order to be up and running:

1. Get an Arduino board
2. Download the Arduino environment
3. Install the USB drivers
4. Connect the board
5. Upload a program

1 | Get an Arduino board

The Arduino i/o board is a simple circuit featuring the ATmega8 processor from Atmel. The board is composed of a printed circuit board (PCB) and electronic parts.

There are a few ways to get an Arduino board:

• buy a ready made board. See how you can buy a board or just the PCB.
  • European distributor
  • US distributor
• build your own board. If you want you can build your own PCB just by downloading the CAD files from the Hardware page. Extract the .brd file and send it to a PCB manufacturer. Be aware that manufacturing a single pcb will be very expensive. It's better to get together with other people and make 20 or 30 at a time. Since you get the full CAD files you can make your own customised version of Arduino. if you make modifications or fix bugs please send us your changes!
  • purchase parts. purchase the parts from any electronics store. The Serial version in particular has been designed to use the most basic parts that can be found anywhere in the world. The USB version on the other hand requires some advanced soldering skills because of the FTDI chip that is an smd part. Here is a list? of parts for the serial board.
  • assemble the board. We put together a step by step guide on how to build an arduino board. Newbies: never soldered before? afraid of trashing thousands of boards before getting one properly soldered? fear not :) learn to master the art of soldering.
  • program the bootloader. In order for the development environment to be able to program the chip, this has to be programmed with a piece of code called bootloader. See the bootloader page on how to program it on your chip.

2 | Download the Arduino environment

To program the Arduino board you need the Arduino environment.

Download Arduino: From the software page.

After downloading the IDE, run the macosx_setup.command. It corrects permission on a few files for use with the serial port and will prompt you for your password. You may need to reboot after running this script.

For more information, see the guide to the Arduino environment.

3 | Install the USB drivers

If you are using a USB Arduino, you will need to install the drivers for the FTDI chip on the board. These can be found in the drivers directory of the Arduino distribution.

On the Mac, mount the FTDIUSBSerialDriver_v2_1_6.dmg (on PPC machines) or the FTDIUSBSerialDriver_v2_2_6_Intel.dmg (on Intel machines) disk image and run the included FTDIUSBSerialDriver.pkg.

The latest version of the drivers can be found on the FTDI website.

4 | Connect the board

If you're using a serial board, power the board with an external power supply (6 to 25 volts DC, with the core of the connector positive). Connect the board to a serial port on your computer.

On the USB boards, the power source is selected by the jumper between the USB and power plugs. To power the board from the USB port (good for controlling low power devices like LEDs), place the jumper on the two pins closest to the USB plug. To power the board from an external power supply (needed for motors and other high current devices), place the jumper on the two pins closest to the power plug. Either way, connect the board to a USB port on your computer.

The power LED should go on.

5 | Upload a program

Open the LED blink example sketch: File > Sketchbook > Examples > led_blink.

Here's what the code for the LED blink example looks like.

Select the serial device of the Arduino board from the Tools | Serial Port menu. On the Mac, this should be something like /dev/cu.usbserial-1B1 for a USB board, or something like /dev/cu.USA19QW1b1P1.1 if using a Keyspan adapter with a serial board (other USB-to-serial adapters use different names).

Push the reset button on the board then click the Upload button in the IDE. Wait a few seconds. If successful, the message "Done uploading." will appear in the status bar.

If the Arduino board doesn't show up in the Tools | Serial Port menu, or you get an error while uploading, please see the troubleshooting suggestions.

A few seconds after the upload finishes, you should see the amber (yellow) LED on the board start to blink.

Learn More

• Read about the Arduino Environment
• Learn about the parts of the Arduino board
• See the tutorials for some example programs. (There are also some examples available in the examples directory inside the arduino directory.)
• Look up specific Arduino functions and syntax in the reference
• The Arduino programming language is compatible with the Wiring language allowing porting applications from the Wiring board to Arduino. Please note the differences between the Wiring and Processing languages.
• If you're having problems, check the FAQ.
• If you don't find a solution there, try posting in the forums.