ESP8266 Community Forum

- Thu Feb 21, 2019 11:40 am #80697 I 'm using an FTDI usb cable trying to program an ESP8266-12E unsuccessfully.
I get this error:

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

Mu FTDI usb calble is this un the photo:


My circuit is in the photo.
Connections are:
FTDI...........ESP8266 ESP-12E
VCC...........VCC and GPIO_2
RTS/CTS....CH_PD
DTR...........GPIO_0
GND..........GND and GPIO_15
TX.............RX
RX............TX

I followed this tutorial.

In the arduino 's IDE I have selected in Tools>Board: Generic ESP8266 module and in Flash Mode: DIO.
What might be wrong?

- Sat Feb 23, 2019 12:14 pm #80757 Finally I made it!
What worked for me:
ESP8266-12E......................FTDI
VCC AND CH_PD................VCC
GND GPIO_15, GPIO_0.......GND
TX........................................RX
RX.......................................TX

Arduino IDE>Tools>Board>Generic ESP8266 Module (also worked with NodeMcu 1.0 but the 'Generic' is, I think, the correct choise).

Taken from this:https://www.youtube.com/watch?v=O2SSyfP6OM0&t=460s