ESP8266 Community Forum

- Wed Mar 09, 2016 10:53 am #42758 i'm learning about ESP8266 and i don't know if when my arduino program has been writing in the device I lose the original commands AT. And other thing, the result that I may have depend my original commands AT?

Thank you in advance
Best Reagard

- Wed Mar 09, 2016 12:20 pm #42762 If you uploaded a new firmware on your ESP8266, the original AT firmware is gone, overwritten by the new one.