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How to Set Up an Arduino Uno

So, you've just bought, or are considering buying, an Arduino Uno kit. Your mind is probably full of questions about how you can get started right away maximizing your experience. Nothing is stopping you from coding the next big thing on...
Part 1 of 4:

Setting Up on Mac OSX

  1. How to Set Up an Arduino Uno Picture 1How to Set Up an Arduino Uno Picture 1
    Download and mount the latest Arduino package.
  2. How to Set Up an Arduino Uno Picture 2How to Set Up an Arduino Uno Picture 2
    Run the FTDIUSB Serial driver included.
  3. How to Set Up an Arduino Uno Picture 3How to Set Up an Arduino Uno Picture 3
    Once that is complete, drag the application to your applications folder. You will have to restart your device to activate the new drivers.
  4. How to Set Up an Arduino Uno Picture 4How to Set Up an Arduino Uno Picture 4
    Connect the Arduino. The first time you connect the Arduino, OSX will tell you that it has detected a new interface. Simply click on 'Network Preferences' and then click 'Apply.'
Part 2 of 4:

Setting Up on Windows 7

  1. How to Set Up an Arduino Uno Picture 5How to Set Up an Arduino Uno Picture 5
    Begin by downloading the latest version of the Arduino package and unzipping it. It may be around an 80MB download, fully expanded to 230MB, so depending on your internet connection you may want to grab a coffee.
  2. How to Set Up an Arduino Uno Picture 6How to Set Up an Arduino Uno Picture 6
    Plug the Arduino into your PC with the included USB cable. Close any pop-up windows and decline any search for drivers through Windows' tool.
  3. How to Set Up an Arduino Uno Picture 7How to Set Up an Arduino Uno Picture 7
    Click on 'Start,' and then type devmgmt.msc. Press ↵ Enter and the Device Manager panel should open.
  4. How to Set Up an Arduino Uno Picture 8How to Set Up an Arduino Uno Picture 8
    Find the 'Other devices' section. You should see an Arduino Uno on the list, with one of those yellow "problem" indications. Double-click on that, select 'Update Drivers' and then select 'Browse my computer for driver software.'
  5. How to Set Up an Arduino Uno Picture 9How to Set Up an Arduino Uno Picture 9
    Select 'Let me choose a Driver,' click on 'All Devices', 'Have Disk,' and then go to the 'Downloads' folder. In the drivers folder, you should see an Arduino Uno file. Select that. The driver installation process will deem it a "communications port" and report a "mistake unsigned driver" when installing. Ignore that, proceeding with the installation anyway.
Part 3 of 4:

Configuring the Board and Port

  1. How to Set Up an Arduino Uno Picture 10How to Set Up an Arduino Uno Picture 10
    Launch the Arduino application from either the 'Download' folder or the 'Applications' folder.
  2. How to Set Up an Arduino Uno Picture 11How to Set Up an Arduino Uno Picture 11
    Set up the port and board. On either system, you may have a tools menu. Click that and ensure a matching board is chosen. The Uno is the default and may already be highlighted in your installation. Ensure the serial port is chosen correctly, too
    1. On a Mac, the port names are a bit more confusing, but it will be one of the listed USB ports. Perhaps it will be listed as cu-USB.
Part 4 of 4:

Run Your First Application

  1. How to Set Up an Arduino Uno Picture 12How to Set Up an Arduino Uno Picture 12
    Click 'Open,' and from the dialog select the example application: Basics -> Blink.
  2. How to Set Up an Arduino Uno Picture 13How to Set Up an Arduino Uno Picture 13
    Test the setup. To ensure that the board is working and is connected correctly, go ahead and click 'Upload.'
    1. After a short moment compiling the application, some orange lights that are labeled TX / RX on the Arduino will begin flashing. This means that data is being transmitted or received. When the process is done, the code will be run immediately.
  3. How to Set Up an Arduino Uno Picture 14How to Set Up an Arduino Uno Picture 14
    Start experimenting. That is as far as this tutorial will take you. You've now set up your Arduino and figured out how to upload apps to it, confirming that it works properly.
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