Installing Arduino IDE

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Windows

This page will show you how to install and test the Arduino software with a Windows operating system (Windows 8, Windows 7, Vista, and XP).

Windows 8, 7, Vista, and XP

  • Go to the Arduino download page and download the latest version of the Arduino software for Windows.
  • When the download is finished, un-zip it and open up the Arduino folder to confirm that yes, there are indeed some files and sub-folders inside. The file structure is important so don’t be moving any files around unless you really know what you’re doing.
  • Power up your Arduino by connecting your Arduino board to your computer with a USB cable (or FTDI connector if you’re using an Arduino pro). You should see the an LED labed ‘ON’ light up. (this diagram shows the placement of the power LED on the UNO).
  • If you’re running Windows 8, you’ll need to disable driver signing, so go see the Windows 8 section. If you’re running Windows 7, Vista, or XP, you’ll need to install some drivers, so head to the Windows 7, Vista, and XP section down below.

Windows 8

Windows 8 comes with a nice little security ‘feature’ that ‘protects’ you from unsigned driver installation. Some older versions of Arduino Uno come with unsigned drivers, so in order to use your Uno, you’ll have to tell Windows to disable driver signing. This issue has been addressed in newer releases of the Arduino IDE, but if you run into issues, you can try this fix first.

For a nice, step-by-step tutorial with pictures click here, otherwise the steps are outlined below.

To temporarily disable driver signing:

  • From the Metro Start Screen, open Settings (move your mouse to the bottom-right-corner of the screen and wait for the pop-out bar to appear, then click the Gear icon)
  • Click ‘More PC Settings’
  • Click ‘General’
  • Scroll down, and click ‘Restart now’ under ‘Advanced startup’.
  • Wait a bit.
  • Click ‘Troubleshoot’.
  • Click ‘Advanced Options’
  • Click ‘Windows Startup Settings’
  • Click Restart.
  • When your computer restarts, select ‘Disable driver signature enforcement‘ from the list.

To permanently disable driver signing (recommended, but has some minor security implications):

  • Go to the metro start screen
  • Type in “cmd”
  • Right click “Command Prompt” and select “Run as Administrator” from the buttons on the bottom of your screen
  • Type/paste in the following commands: bcdedit -set loadoptions DISABLE_INTEGRITY_CHECKS bcdedit -set TESTSIGNING ON
  • Reboot!

Windows 7, Vista, and XP

Installing the Drivers for the Arduino Uno (from Arduino.cc)

  • Plug in your board and wait for Windows to begin it’s driver installation process
  • After a few moments, the process will fail, despite its best efforts
  • Click on the Start Menu, and open up the Control Panel
  • While in the Control Panel, navigate to System and Security. Next, click on System
  • Once the System window is up, open the Device Manager
  • Look under Ports (COM & LPT). You should see an open port named “Arduino UNO (COMxx)”. If there is no COM & LPT section, look under ‘Other Devices’ for ‘Unknown Device’

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  • Right click on the “Arduino UNO (COMxx)” or “Unknown Device” port and choose the “Update Driver Software” option
  • Next, choose the “Browse my computer for Driver software” option

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  • Finally, navigate to and select the Uno’s driver file, named “ArduinoUNO.inf”, located in the “Drivers” folder of the Arduino Software download (not the “FTDI USB Drivers” sub-directory). If you cannot see the .inf file, it is probably just hidden. You can select the ‘drivers’ folder with the ‘search sub-folders’ option selected instead.
  • Windows will finish up the driver installation from there

For earlier versions of the Arduino boards (e.g.Arduino Duemilanove, Nano, or Diecimila) check out this page for specific directions.

Launch and Blink!

After following the appropriate steps for your software install, we are now ready to test your first program with your Arduino board!

  • Launch the Arduino application
  • If you disconnected your board, plug it back in
  • Open the Blink example sketch by going to: File > Examples > 1.Basics > Blink

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  • Select the type of Arduino board you’re using: Tools > Board > your board type

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  • Select the serial/COM port that your Arduino is attached to: Tools > Port > COMxx

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  • If you’re not sure which serial device is your Arduino, take a look at the available ports, then unplug your Arduino and look again. The one that disappeared is your Arduino.
  • With your Arduino board connected, and the Blink sketch open, press the ‘Upload’ button

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  • After a second, you should see some LEDs flashing on your Arduino, followed by the message ‘Done Uploading’ in the status bar of the Blink sketch.
  • If everything worked, the onboard LED on your Arduino should now be blinking! You just programmed your first Arduino!

Troubleshooting

This guide from Arduino has some more details and troubleshooting tips if you get stuck.