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(SOLVED) ESP8266-03 not responding

PostPosted: Tue Feb 17, 2015 2:41 pm
by Michal Stehlik
Hi Guys,

in beginning: before I decide create this topic, I already read lot of tutorials and threads, how to connect ESP8266, but nothing helpes.

This is my setup:
    FTDI 3.3V
    ESP module is soldered to breakboard, all connections are working and tested
    FTDI.VCC is connected to VCC, CH_PD
    FTDI.GND is connected to GPIO15 and GND
    FTDI.TX is connected to TX
    FTDI.RX is connected to RX
    other pins are not connected.

After FTDI was connected to my PC, baud rate was set to 9600 but ESP was not responding. Then I read about troubles with enter character but using Enter + Ctrl-J don't helps (AT command was set but not response received). I tried several baud rates recommended on internet but without luck. Do you guys have some advice what I'm doing wrong?

Thanks a lot.

Re: ESP8266-03 not responding

PostPosted: Wed Feb 18, 2015 12:16 pm
by Michal Stehlik
Hi Guys,

I have one update. It seems, ESP is not death, because when I power up the device, I can detect WIFI signal (it behaves as access point with gateway 192.168.4.1).

Re: ESP8266-03 not responding

PostPosted: Wed Feb 18, 2015 12:41 pm
by MK1888
Have you tried switching RX and TX? Some modules might be improperly labeled.

Re: ESP8266-03 not responding

PostPosted: Wed Feb 18, 2015 1:07 pm
by Michal Stehlik
MK1888 wrote:Have you tried switching RX and TX? Some modules might be improperly labeled.


I switch them and at baud rate 115200 command AT\r\n produces \0 as response. Any clue?