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I just installed macOS Mojave 10.14 Beta and when i connect an Arduino to the USB port, nothing appears in my Arduino IDE ports list.

if i try ls /dev/tty.* i just see /dev/tty.Bluetooth-Incoming-Port connected. On macOS 10.13 everything was working ok. I tried reinstalling the driver ( http://www.ftdichip.com/Drivers/VCP/MacOSX/FTDIUSBSerialDriver_v2_4_2.dmg ) many times, I also tried following https://learn.sparkfun.com/tutorials/how-to-install-ftdi-drivers/mac but the port never appear. Suggestions?

voidbrain
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  • It's one of the problems of upgrading your system too early on Apple. You will just have to wait for a few days for the device drivers to be fixed. I remember my printer not working when I upgraded to High Sierra. It started working a few days later. The best thing to do is to report this to Apple support. There are other people who are also reporting this bug https://stackoverflow.com/questions/50731843/arduino-ide-in-macos-mojave#50731843 – Nitro Jun 07 '18 at 01:56
  • Thank you. I had to install the Beta because I develop apps for iOS. I also tried to write to ftdichip support. – voidbrain Jun 07 '18 at 07:24
  • @voidbrain were you able to solve this? – acrogenesis Jun 29 '18 at 03:15
  • No. Not yet. They suggested me to disable the driver signature but I did not try. – voidbrain Jun 29 '18 at 06:09
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    MacOS beta 3 (8A326h) solved the problem. The port is available again. – voidbrain Jul 11 '18 at 09:39
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    Just wanted to follow up. After the Mojave public release, devices show up and software and connect to the COM ports and seems to send and receive data, but I think not all parts of the communication are working fully. I have a device that is sending data back from a request, but I think it's not seeing changes in RTS / CTS / DTR properly. – stef Oct 04 '18 at 21:37
  • Serial port appeared using a hub (AmazonBasics USB 2.0 4-Port Ultra Mini Hub; Bus-powered) between the USB-C and ESB32 Dev Module. I'm using a 2017 Mac Pro with Mojave version 10.14.1. This mod causes SLAB_USBtoUART to become available and Arduino is able to program the device. I had already installed the above drivers but this was a necessary additional step. Hope it helps someone. – KevinY Nov 13 '18 at 13:57
  • I am having similar problems, with Mojave 10.14.4 and 10.14.5. The first time I reboot after installing the driver, I can see the serial port associated with my EntTec DMX USB Pro Mk2, but then if I unplug it, the port disappears and won’t come back. Does anyone know if FTDI is woking on an updated driver? – James Elliott May 22 '19 at 04:37

1 Answers1

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Solved for me updating the driver (Use the one below):

Mac OS X 10.9 and above This driver is signed by Apple

https://www.ftdichip.com/Drivers/VCP.htm

Pepe Calixto
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