I own a Min Seg.
My Min Seg model is built on an Arduino Mega 2560.
I have a Macbook running OS X 10.10.3 (Yosemite)
When I connect the board to the Macbook,
using either of the Macbook's two USB 2.0 ports,
using either of two USB A to B cables,
the board lights up, but I am unable to connect
to the tty device using the Arduino IDE.
Tools --> Port offered:
/dev/cu.Bluetooth-Incoming-Port
/dev/cu.Bluetooth-Modem
/dev/cu.usbmodem621 (Arduino Genuino Mega or Mega 2560)
I was expecting to also see:
/dev/tty.usbmodem621 (Arduino Genuino Mega or Mega 2560)
If I unplug the board, the third listed option
from Tools --> Port disappears, as expected.
I opened the System Information utility application.
USB --> USB Bus -->Arduino Mega:
Product ID: 0x0042
Vendor ID: 0x2a03
Version: 0.01
Serial Number: 75435353038351316281
Speed: Up to 12 Mb/sec
Manufacturer: Arduino Srl
Location ID: 0x06200000 / 3
Current Available (mA): 500
Current Required (mA): 100
I used the Sparkfun Terminal basics to check for the device.
I used the Terminal utility application.
ls /dev/tty.* offered:
/dev/tty.Bluetooth-Incoming-Port
/dev/tty.Bluetooth-Modem
/dev/tty.usbmodem621
screen /dev/tty.usbmodem621 9600 offered a successful connection.
[A white screen, which allowed for exit using Control+a followed by Control+/]
I have begun to try other means.
The majority of these means were sourced from other threads, such as here.
Mathworks Simulink states that a cu device is expected,
rather than a tty, when setting connection options.
I installed the FTDI drivers.
I ran the following code in the terminal: sudo nvram boot-args="kext-dev-mode=1"
Is an alternative driver worth attempting, such as that listed here?
Answer: Answer granted here.
In short, the starter guide is written incorrectly. A cu address should be used rather than a tty address.