ESP8266 Community Forum

- Fri Feb 13, 2015 10:41 pm #9712 Fellows,

I made a stupid thing on the first attempt to use the esp-03 - reversed power to the module: +3.3 volts went to the ground and ground went to the Vcc input. Needless to say, I was/am unable to communicate with it. Does the module have any protection against voltage reversal? In other words, is it still worth trying to make it work?
Thanks in advance!

- Sat Feb 14, 2015 12:59 am #9719 i tried that also in my two modules, for less than 30secs i think. and still work after.

you still have chance.

- Sat Feb 14, 2015 11:33 am #9754 Thanks! This is really encouraging, although mine was reversed for a few minutes. Guess I will try flushing new firmware next. Is there a simple way to do it?
Thanks again!