The Arduino Uno is programmed using the Arduino Software (IDE), our Integrated Development Environment common to all our boards and running both online and offline. For more information on how to get started with the Arduino Software visit the Getting Started page.
Use your Arduino Uno on the Arduino Web IDE
If you want to program your Arduino Uno while offline you need to install the Arduino Desktop IDE The Uno is programmed using the Arduino Software (IDE), our Integrated Development Environment common to all our boards. Before you can move on, you must have installed the Arduino Software (IDE) on your PC, as explained in the home page of our Getting Started.
Connect your Uno board with an A B USB cable; sometimes this cable is called a USB printer cable

Install the board drivers
If you used the Installer, Windows – from XP up to 10 – will install drivers automatically as soon as you connect your board.
If you downloaded and expanded the Zip package or, for some reason, the board wasn’t properly recognized, please follow the procedure below.
- 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”.
- Right click on the “Arduino UNO (COmxx)” port and choose the “Update Driver Software” option.
- Next, choose the “Browse my computer for Driver software” option.
- Finally, navigate to and select the driver file named “arduino.inf”, located in the “Drivers” folder of the Arduino Software download (not the “FTDI USB Drivers” sub-directory). If you are using an old version of the IDE (1.0.3 or older), choose the Uno driver file named “Arduino UNO.inf”
- Windows will finish up the driver installation from there.
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