Requirements
- A Windows computer (Windows 10 or newer for the current IDE).
- An internet connection to download the installer.
- A USB cable and an Arduino board to use it.
Step 1: Download the Arduino IDE
Open the official Arduino website, go to the Software page and download the Windows installer.

Step 2: Install
- Run the installer.

- Accept the license agreement.

- Choose the installation options. Keep the defaults.
- Choose the install location.

- Click Install. If Windows asks to install USB drivers, allow it.

- Click Finish when it is done.

Step 3: Check the installation
Open the Arduino IDE from the Start menu. Go to Help, then About Arduino IDE to see the version.

Use the IDE

- Code editor. Where you write your sketch.
- Output window. Shows messages, errors and warnings.
- Message area. Shows information about the current action.
Write your first sketch (blink an LED)
void setup() {
pinMode(13, OUTPUT);
}
void loop() {
digitalWrite(13, HIGH); // turn the LED on
delay(1000); // wait for a second
digitalWrite(13, LOW); // turn the LED off
delay(1000); // wait for a second
}
- Connect the board with the USB cable.
- Choose your board under Tools, then Board, and the port under Tools, then Port.
- Click the Upload button (the arrow). The LED on pin 13 starts to blink.
Notes
- You must select the specific board before you upload.
- If the board is not found, install its USB driver, or try another USB cable or port.
- Add extra libraries from Sketch, then Include Library, then Manage Libraries.
Quick recap
- Download the installer from arduino.cc and run it.
- Select the board and port, then upload a sketch.
- Use the Library Manager for extra libraries.