ESP8266 Community Forum

- Sun Jul 17, 2016 6:42 pm #50931 Hi,

i just finished connecting my first ESP8266 board, its an ESP12-F type but it seems not to behave like it should to

Im a total newbie when it comes to electronics and programming for it, so im a bit lost and dont exactly know what im supposed to do now.
Heres what i did so far:

when i open serial monitor on COM3 in Arduino IDE, i can send AT commands and it responds to "AT" with "Ok", but to "AT+GMR" it responds "+GMR: 7.80.5.0" and to all other AT commands it just returns "error".

So i googled my problem and found this http://arduino.stackexchange.com/questi ... -and-atgmr
but it doesnt get solved there.

I guessed that i should try to flash a different firmware and used this instructable http://www.instructables.com/id/Intro-E ... lash-mode/

but it wont connect, i just get this:
connecting ....
Failed to connect

with another tool (ESP Flash Download Tool V2.3) it says "chip sync error"

Here is my setup:
ESP-12-F QIO L4

GPIO0 and GPIO15 -> GND
GPIO2 and EN ->VCC
VCC->3V (Two AA batteries)

FTDI232->ESP
RX->TX
TX->RX
GND->GND

Can anybody help me? Did i do something wrong or could it be that these are fake modules? I got them from aliexpress for 1.56€

Thanks in advance!

- Sun Jul 17, 2016 9:32 pm #50938 shortly after making this new topic i found out that im a little bit dumb, i wasnt talking to the esp on com3 but to the built in modem of my laptop and that the esp hangs on com4

so my real problem is that the esp isnt responding anything

could the problem be my power source? i also tryed several new batteries and powering it through the ftdi232 but already read somewhere that the current might be not enough.

the wiring seems fine, but please correct me if im wrong.

- Tue Jul 19, 2016 7:45 am #51040 so after another unsatisfiying day, here is what i found out:

1. i wasnt talking to the ESP, when it responds "+GMR: 7.80.5.0", you are propably talking to your built in conexant modem (Lenovo Thinkpad)

2. my FTDI converter has an fake chip with the serial number A50285BI, even with the old drivers, it doesnt work with the ESP. Dont buy this product:

3. now im waiting for a serialconverter with CH340G Chip.

hope that helps in case anyone searches for a similar problem