ESP8266 Community Forum

- Fri Feb 03, 2017 1:49 am #61948 I have a ESP 12F board that I want to flash with my own code using FTDI 232 and USB to Serial connection to a windows PC.


ESP12F <--> FTDI 232
GND <--> GND
GPIO0 <--> GND
GPIO15 <--> GND
VCC <--> VCC
EN <--> VCC
TXD0 <--> RX
RXD0 <--> TX

FTDI jumper on 3.3v obviously


I've installed Arduino ide 1.8.1 and have added the board to the board manager.

I've tried flashing the code using "Generic ESP8266 Module" as well as "NodeMCU 1.0 (ESP-12E Module)

All i get is a cannot sync error. Athere is no light coming up on ESP12F as such.

What am I doing wrong here? Can somebody suggest a solution?

Apologies if its too trivial of a question.

- Sat Feb 04, 2017 4:14 pm #62035 USB serial chips do not supply enough current for the ESP8266. See below for more details.

http://esp8266.github.io/Arduino/versio ... 66-modules

There may also be a Windows driver problem since the IDE cannot even Flash the chip. Try updating or reinstalling the USB serial driver.