I waited for years for a Homebrew formula for MOC. I finally found one today, but it didn't work for me. So I decided to try to compile it from source.
Here is a list of requirements, taken directly from the MOC README:
1. download and install http://www.wch.cn/download/CH341SER_MAC_ZIP.html | |
2. run `sudo nvram boot-args="kext-dev-mode=1"` | |
3. Reboot | |
4. Enjoy you port `/dev/cu.wchusbserial**` |