ESP8266 Community Forum

Posted: **Sun May 24, 2015 5:56 pm**

Hello I have bought some esp-12
but I have a big problem...
when I try to send some at command the blue light turn on for 1/2 sec and after turn off. But nothing appear on the terminal.
I Have tried 3 of them but nothing...
I have used also an external power source but nothing. I have tried to flash new firmware but nothing.. I can't connect to the esp-12. I have googled a lot (I have already read a lot of page of the forum) but nothing.
SOme idea?
thx

Posted: **Tue May 26, 2015 3:34 am**

Make sure you have connected the pins correctly, but since the light is blinking I assume the module is receiving something. What baud rate have you set on your terminal and are you using the right COM port?

Posted: **Tue May 26, 2015 10:31 am**

I have tried different speed. Nothing.
Gnd to Gnd
Vcc to 3.3
Tx to rx
Rx to tx
Pin 15 to Vcc
Ch pd to Vcc
Pin 00 to Gnd

Posted: **Tue May 26, 2015 11:11 am**

you need to change gpio 15 from vcc to ground

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