ESP8266 Community Forum

Wiring:
ESP8266 connected to 3.3V external supply. RX+TX connected to bi-directional level shifter 3.3 <> 5.5V to Arduino.

Screenshot of Basic communication:


CWJAP is obviously fail, but I think there is something to do with communication settings itself. all other baud rates wouldn't work apart from 115200, however I can't find why my ESP CIOBAUD? shows an error when trying to get that information.

What are possibly causes for that?

Thanks,
Tom

Hi Tom,

Depending on your version of firmware you may need to use this to change the baud rate:

AT+IPR=9600

The busy p is normal if the module is blocked on a prior command. You will need to build into your code a wait\retry logic or do a hard reset on the power. Really, by the time you get the correct process down then the module behaves as it should and you rarely ever see busy returns.

Stephen