Issue can be resolved by disabling the SIP on macOS High Sierra and then installing CH34x_Install_V1.5.pkg. I can now detect the Maker-UNO, Maker-Nano and UNO-CH340 on my MacBook (macOS High Sierra)
disable System Integrity Protection:
- Reboot your Mac into Recovery Mode by restarting your computer and holding down
Command+R
until the Apple logo appears on screen. - Open the Terminal (Applications > Utilities > Terminal).
- In the Terminal window, type in
csrutil enable --without kext
(or to fully disable:csrutil disable
) and pressEnter
. - Restart your Mac.