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By szymic2
#68689 I'm owner of relay board with ESP:
http://www.electrodragon.com/w/ESP_Relay_Board

and I have problem with flashing with NodeMCU. I connected relay board to FTDI232 in following way:

FTDI - Relay Board
GND - GND
3.3. VCC - 3.3 VCC
TX - RXD
RX - TXD

During starting board I'm pressing BTN2 (to enter in programing mode) but even when I execute:

esptool.py --port com3 flash_id

I've got:
Code: Select allC:\Python\Scripts>esptool.py.exe --port com3 flash_id
esptool.py v2.0.1
Connecting....
Detecting chip type... ESP8266
Chip is ESP8266
Uploading stub...

A fatal error occurred: Timed out waiting for packet header


What am I doing wrong?