Launch MacRemover in the dock or Launchpad, select Arduino 1.6.6 appearing on the interface, and click Run Analysis button to proceed. Review Arduino 1.6.6 files or folders, click Complete Uninstall button and then click Yes in the pup-up dialog box to confirm Arduino 1.6.6 removal.

These instructions describe an installation of the Arduino Software and drivers for an Arduino Uno on Mac OS X Lion, but will work the same for Leopard, Snow Leopard and Mountain Lion. Previous operating systems may require you to search the web for your specific situation.

Follow these steps to install the Arduino software on your Mac:

Arduino File Library

1Go to the Arduino downloads page and click the Mac OS X link to download a .zip file containing a copy of the Arduino application for Mac OS X.

Currently, the file is 71.1MB. That’s quite a large file, so it may take a while to download. After you’ve finished downloading, double-click the file to the Arduino application and place it in your Applications folder.

2Plug the square end of the USB cable into the Arduino and the flat end into an available port on your Mac to connect the Arduino to your computer.

As soon as the board is connected, a dialog box appears, showing the message A new network interface has been detected.

3Click Network Preferences, and in the window that appears, click Apply.

Note that your Arduino is displayed in the list on the left side of this window as Not Configured, but don’t worry, the software is installed and your Arduino board will work.

4Close the Network Preferences window.

To launch the Arduino application, go to your Applications folder, locate the Arduino application, drag it to the Dock, and then click the Arduino icon to open the Arduino application. If you prefer, you can also drag the application to the desktop to create an alias there instead.

The Library Manager is the simplest and safest way to install libraries. If possible, that is the method you should use.

If the library you want to use is not available via the library manager, you can get the source code and place it into your machine's local library folder. The location of the folder is rather specific.

See the file hierarchy below:

It is important to install your libraries in the correct location. Otherwise the compiler will not be able to locate them when you try to compile and upload your sketches.

Locate your Sketchbook Folder and the Libraries Folder Inside

Your sketchbook folder is the folder where the Arduino IDE stores your sketches. This folder is automatically created by the IDE when you install it.
On Linux machines, the folder is named 'Sketchbook' and it is typically located in /home/
On Windows and Macintosh machines, the default name of the folder is 'Arduino' and is located in your Documents folder.

User installed libraries should go in a folder named Libraries, located inside your sketchbook folder. This is where the IDE will look for user installed libraries.

How Do You Uninstall Arduino Library On Mac Windows 10

Open the Preferences Dialog Click File -> Preferences in the IDE.

Find the Sketchbook Location Usually a folder named Arduino in your Documents folder. Once you know the location, navigate to this folder in Windows Explorer or mac Finder

Create a Libraries Folder If there is no Libraries folder there, create one. Right click in Windows Explorer and select New -> Folder.

Rename to Libraries Right click on the New Folder and select Rename. Then type in Libraries.

This guide was first published on Feb 16, 2013. It was lastupdated on Feb 16, 2013.This page (Installing Libraries Manually) was last updated on Apr 10, 2020.