ESP8266 Community Forum

Posted: **Mon Mar 28, 2016 4:31 pm**

Hello,

I have 2 ESP-12F board connected identically, one is working well but I can't communicate (serial) with the other, the blue led is is always on but dimmed. Does somebody know the cause of the dimmed led ????

Thanks.

Posted: **Tue Mar 29, 2016 9:30 am**

Bad power source? Device is continuously sending data on the serial?

Posted: **Tue Mar 29, 2016 12:38 pm**

You are right !!! THANKS

The power source is ok, it is the same power source than the working board so I have unsoldered the power wires on the board and I've seen the VCC trace was removed. thanks. New iron with temperature control ordered !!!

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