Identify the "usbserial" device name

Connect a micro-USB cable to the UART/serial micro-USB port of the Intel® Edison expansion board, and the other end to your computer.

Refer to UART/serial micro-USB cable for more detailed cable connection information.
Launch Terminal.
Option 1:
1. Launch Spotlight (type Cmd+Space).
2. Type “terminal”.
3. Select the “Terminal” app.
Option 2:
1. Go to Applications on your Mac.
2. Open Utilities.
3. Launch Terminal.app.
Use the “ls” command to list any connected devices.

ls /dev/tty.*
Look for a device that contains “usbserial”.

In this case, the device found was “/dev/tty.usbserial-A402YSYU”.

Don’t see a “usbserial” device listed?

Is your IoT board powered on?
Do you have the UART/serial cable connected? Refer to UART/serial micro-USB cable.