Always download the software directly from arduino.cc . Avoid third-party sites to ensure you get the most secure and up-to-date version. 2. Choose the Correct Version You will see two main options for Mac:

Once the IDE is open, you need to tell the software which board you are using:

Go to Tools > Board and select your model (e.g., Arduino Uno).

Double-click Arduino in your Applications folder to launch it. ⚙️ Setting Up Permissions on macOS

You may need a USB-C to USB-A adapter if your Mac only has USB-C ports. 📥 How to Download and Install Arduino IDE 1. Visit the Official Website