ESP8266 Community Forum

I have wired ESP12 as was stated on mysensors to my FTDI which is 3,3V (without pull up resistors - all direct connections)
VCC-VCC
ADC-3,3V
GND-GND
GPIO0-GND
GPIO1-3,3V
GPIO15-GND

Ran the ESP8266Flasher without any problems flashing NodeMCU

Than opened up ESPlorer and get
Communication with MCU...
..........
.......... going on forever...

Did i miss some steps in between?

Are you powering the ESP with your usb dongle? That's not generally a great idea. The esp8266 can draw up to 300ma and most usb dongles aren't up to the job.

Have you tried adjusting the baud rate? I forget what the default is for nodemcu firmware - it's not the same as the AT firmware.

I don't use esplorer, but I've found Termite to be a very good interface for direct serial communication with devices:

http://www.compuphase.com/software_termite.htm

Also, which flasher did you use? I didn't have good results with the nodemcu flasher (board unresponsive after flash), but the official flash tool works fine for me.