> For the complete documentation index, see [llms.txt](https://longer-vision-robot.gitbook.io/arduino-full-stack/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://longer-vision-robot.gitbook.io/arduino-full-stack/01_getting_started_with_arduino/06_ide.md).

# 1.6 Arduino IDE for Prototyping

The most recent Arduino IDE can be downloaded from <http://www.arduino.org/downloads>. The version that we are using when writing **Arduino Full Stack** is 1.8.3.

![Arduino IDE 1.8.3](/files/-LCFECGp6qkUCtcFQ0ef)

Default Arduino sketch looks like the following:

![Arduino Sketch](/files/-LCFECH6ilSLhwIlTz3G)

When Arduino board is connected to the host computer via USB cable, you will be able to see **Arduino/Genuino Uno** is automatically ticked and selected under the menu **Tools->Board**. And the users have to manually select/tick the port, here in my case is: **Tools->Port->/dev/ttyACM0(Arduino/Genuino Uno)**.

Here, **ttyACM0** is a USB communication **device** (CDC) of sub-type "**abstract control model**" (**ACM**). In UNIX, **tty** is any device that acts like a "**teletype**", ie, **terminal**.