Our 32U4 family of boards can be programmed from the popular Arduino integrated development environment (IDE). The Arduino IDE is a cross-platform, open source application that integrates a C++ code editor, the GNU C++ compiler, and a program upload utility. To get started programming your device with the Arduino IDE (version 1.6.4 or later), follow these steps:
+
+
Download the Arduino IDE from the [http://arduino.cc/en/Main/Software Arduino Download page], install it, and start it.
+
+
1. In the Arduino IDE, open the '''File''' menu (Windows/Linux) or the '''Arduino''' menu (macOS) and select “Preferences”.
+
+
2. In the Preferences dialog, find the “Additional Boards Manager URLs” text box (highlighted in the picture below). Copy and paste the following URL into this box:<br /><br />'''https://files.pololu.com/arduino/package_pololu_index.json'''<br /><br />If there are already other URLs in the box, you can either add this one separated by a comma or click the button next to the box to open an input dialog where you can add the URL on a new line.