Support for NodeMCU-devkit 0.9 on Mac?

[abl]

Hi! I've got a couple of NodeMCU Devkits of the 0.9 rev (so the CH340G bridge) and I'm using the signed driver from mac-usb-serial.com. Out of the box, esptool isn't working.

These changes seem useful:

self._port.setRTS(True)
self._port.setDTR(False)
time.sleep(0.1)
self._port.setRTS(False)
self._port.setDTR(True)
time.sleep(0.1)

Doing this causes the ESP to boot in to mode (1,6) - user firmware boot identifies itself as (3,6).

The boot header is ets Jan 8 2013,rst cause:2, boot mode:(3,6) so it's a somewhat older firmware. I can't find any docs on what the second number means, but all of my working devices show a 7...

Any thoughts? :)

[abl]

Relying on USB for power, and connecting a different serial device, I boot in to (1,7) and was able to reflash without any issues. Even more mystified now...

[MacDada]

• I've had AT commands working, but it stopped when I did AT+CIUPDATE.
• I can't get any CH340G driver to work on Yosemite.
• I installed ubuntu with vagrant+virtualbox to make sure there are no OSX–specific software problems.
• I power NodeMcu from Mac using built in USB.
• I "talk" with NodeMcu through Arduino Mega serial with its Atmega chip shut down – it speaks "garbage" (because of AT+CIUPDATE).
• Flashing with esptool doesn't work.
• I've tried flashing with and without the voltage divider.

I show my setup plus what works and what doesn't here (sorry for my bad english :P): https://www.youtube.com/watch?v=AibvuZ4YB7Y

@abl How exctly did you make it work?

[abl]

@MacDada I connected a 3.3V FTDI USB->UART to the RX/TX lines and held down the flash button as I connected the onboard USB for power.

[projectgus]

I'm going to close this as I think it should be fixed as of #30. Please reopen if the nodemcu 0.9 still doesn't seem to work.