Arduino Nano OS X Setup Issue – Serial Port Not Found

Recently, I purchased a Arduino Nano to learn more about the Arduino boards and platform.  I tried hooking it up to my Mac running OS X 10.6.8 but the serial port wasn’t showing up in the Arduino IDE.  After some research, I determined that I needed to install the FTDI drivers to the computer could see the Nano board.  After visiting the FTDI Driver Page, I downloaded the x64 driver and installed it.  I relaunched the Arduino IDE and the new serial port was available:

Arduino_Nano_Serial_Port_OS_X

After selecting the correct serial port, I uploaded the sample “Blink” program (use pin 13 for the on-board LED) and it worked!  I quickly wired up an external LED to test a digital pin and it also worked as expected:

Arduino_Nano_Blink_LED

One Comment

Tiago S. August 10, 2014

This solved my problem, thank you very much!

I’m also on 10.6.8 (Snow Leopard) and I’m using an Arduino Uno.

I downloaded the “x64 (64-bit)” version and installed the “FTDIUSBSerialDriver_10_4_10_5_10_6_10_7.mpkg” package from the .DMG.

After that, I reconnected the Arduino and closed/opened the IDE.