ESP8266 Community Forum

Posted: **Mon Dec 28, 2015 8:20 am**

Dear Community,

I hope you can help me out with the EPS8266-02 from DIYMall with external antenna.

I tried to connect it like this:

ESP UNO

VCC 3.3V
GND GND
TX TX
RX RX
GPIO15 3.3V
GPIO0 none
GPIO2 none
RST none

But when I type AT into the serial Monitor nothing happen!

How can I solve this problem ?

Posted: **Mon Dec 28, 2015 4:21 pm**

My two cents:
* Connect Tx to Rx and Rx to Tx.
* GPIO0 and GPIO2 should not be left floating.

Posted: **Tue Dec 29, 2015 12:28 pm**

What should be connected to GPIO0 and GPIO2 ?

Swapping RX/TX is not working... (Same Problem here)

Posted: **Tue Dec 29, 2015 1:50 pm**

Both GPIO2 and GPIO0 need to be pulled up to VCC using resistors.

ESP8266 Community Forum

ESP8266-02 Problems with the connection

ESP8266-02 Problems with the connection

Re: ESP8266-02 Problems with the connection

Re: ESP8266-02 Problems with the connection

Re: ESP8266-02 Problems with the connection