Hi there,

I have an ESP-12E board and I was trying to upload blink programme to it through Arduino IDE. But when the programme upload completes, the blue LED is ON and the serial monitor shows continues junk. When I remove GPIO 15 from ground, this thing stops but the esp doesn't work according to the code. The upload process is uninterrupted but the esp is not doing it's job also the AT commands are not working.

Is this the problem of firmware I uploaded or something like that? Please reply soon!!!

Thanks in advance,
Yavnik

 

If you have uploaded code into the ESP-12 then the code which deals with AT commands that was in it when you bought it will probably have been overwritten. To get the AT commands to work again you will have to find a copy of the original code and re program it with that.

Les.

 

If you have uploaded code into the ESP-12 then the code which deals with AT commands that was in it when you bought it will probably have been overwritten. To get the AT commands to work again you will have to find a copy of the original code and re program it with that.

Les.

Hi,
Thanks for you reply. Can you please tell me how to get original code for the esp-12e?

Thanks

 

I think the information in this link should solve your problem.

Les.