ESP8266 Community Forum

- Mon Dec 28, 2015 8:20 am #37314 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 ?

- Mon Dec 28, 2015 4:21 pm #37343 My two cents:
* Connect Tx to Rx and Rx to Tx.
* GPIO0 and GPIO2 should not be left floating.

- Tue Dec 29, 2015 12:28 pm #37388 What should be connected to GPIO0 and GPIO2 ?

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

- Tue Dec 29, 2015 1:50 pm #37393 Both GPIO2 and GPIO0 need to be pulled up to VCC using resistors.