ESP8266 Community Forum

- Tue Feb 14, 2017 1:57 am #62540 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

- Tue Feb 14, 2017 12:35 pm #62564 My first guess would be simply an error in your code.
The AT commands will certainly not be working, because when you upload your sketch, that overwrites (replaces) the AT code.
Try putting the AT commands back on, to see if the ESP itself is still OK. (You can find how to do that on other posts in this forum.)