Just for the records, i could successfully install the driver and use the USB-Serial adapter on Mac OS v10.8.2 (Mountain Lion). The only difference from the tutorial is that i had to alter GateKeeper configurations so a ‘non-signed' driver could be installed. The ICUSB232FTN FTDI USB to Null Modem Serial Adapter Cable (1-Port) converts an available USB 1.1 or 2.0 port into an RS232 Null Modem serial DB9 port, solving DCE/DTE conflicts directly, without requiring additional cross-wired serial cables or adapters. The best USB to Serial drivers for macOS Drivers for CP2102 / CH340 / CH341 / PL2303 Devices. Program your Arduino, ESP8266 within a couple of minutes, control your Cisco, or download your GPS tracker, our drivers enable it.
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Using screen as a serial terminal on Mac OS X
Geek Inc.If you develop on an Apple and find yourself doing any sort of device or embedded development, you will quickly find the need for a serial terminal on Mac. There are a few software apps out there, but I find it much simpler to simply use the terminal application 'screen'.
This works well particularly if you have an RS-232 serial to USB converter.
The first thing to do is determine which device you want to connect to.
Once you've determined which device you would like to use, you can execute the SCREEN command to start the serial terminal session on your Mac. Remember to specify the speed (baud rate) after the device name.
Once you've connected, you can use the terminal as you normally would.
To exit (and close the screen gracefully) press:
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Screen will then prompt you to quit and kill all of your windows. Press 'y' and you'll be back to your shell terminal.
This method works equally well if you want to connect to a serial bluetooth device. You must simply make sure that the bluetooth device is paired and active. Then you will be able to see the device in the list of devices. Once you've connected to the serial bluetooth device with screen, the connection will be held active for the length of your session.
I've used this method to connect to the sparkfun Bluetooth Mate Gold. It simply appears as a serial stream that you can communicate with exactly as you would with any other serial device.
