Fixing issues with arduino and more boards that uses usb-serial.

• Version 1.4 (2017-01-11) of the OEM driver for the CH34x chipset.

SHA256: b190f612b833727b2006f362a835f7e97177b580e45cef253e164202106c48eb

Remove the old driver by issuing one of the following commands (depending on your installation):

sudo rm -rf /System/Library/Extensions/usb.kext
sudo rm -rf /Library/Extensions/usbserial.kext

• Restart your Mac.
• Double-click on the CH34x_Install_V1.4.pkg file.
• Restart your Mac.
• Plug in your device. It should now be listed under the /dev directory.