missing serial Port - nodeMCU 1.0 (ESP 12E Module) Arduino on Mac

Hi there,

I am trying to use my brand new nodeMCU 1.0 (ESP 12E Module) using Arduino IDE. I install the library for ESP8266 using “Installing with Boards Manager”.

When I upload the Sketch it says:

warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_open failed

Unfortunately I do not see a serial port on my Mac (10.12.6). How can I get it?

Thanks, Ingo

PS: here are some screenshots of my setup

Bildschirmfoto 2017-09-06 um 21.23.06.jpg

Bildschirmfoto 2017-09-06 um 21.22.42.jpg

Did you install the CH340G USB drivers?


hi. i have the same problem. i can't see my serial port in Arduino IDE. I installed and uninstalled several drivers, i disabled "system integrity protection"...nothing. the board was tested on another computer and works. same NodeMCU 1.0, MacOSX 10.12.6