Find Arduino Port on Windows, Mac, and Linux

Find Port Number on Windows

1. Open Device Manager, and expand the Ports (COM & LPT) list.

2. Note the number on the USB Serial Port.

   

Find Port Number on Macintosh

1. Open terminal and type: ls /dev/*.

2. Note the port number listed for /dev/tty.usbmodem* or /dev/tty.usbserial*. The port number is represented with * here.

Find Port Number on Linux

1. Open terminal and type: ls /dev/tty*.

2. Note the port number listed for /dev/ttyUSB* or /dev/ttyACM*. The port number is represented with * here.

3. Use the listed port as the serial port in MATLAB^®. For example: /dev/ttyUSB0.