Connecting the Arduino

It is time to hook up the Arduino board. Plug in the respective USB terminals to the USB cable and the tiny LEDs on the Arduino should begin to flash.

Connecting the Arduino

Arduino UNO plugged in

If the LEDs didn't turn on, ensure that the USB port on your computer is functioning and make sure the cable isn't faulty. If it still does not light up, there is something wrong with your board and you should get it checked.


The computer will begin to install the drivers for the Arduino by itself. If it does not succeed, do the following:

  1. Open Device Manager.
  2. Click on Ports (COM & LPT).
  3. Right-click on Unknown Device and select Properties.
  4. Click on Install ...

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