Re: How can floating GPIO2 pin damage the controller?
Posted: Sun Sep 13, 2020 12:09 pm
Thank you all for the responses!
As I understand, it is OK to leave the GPIO2 floating, although it is best practice to pull it up to VCC with a resistor.
The note under the boot mode table probably wanted to say that you should use a resistor rather than making a direct connection to VCC.
But probably due to some unfortunate edits to the sentence, it currently says that leaving GPIO2 floating is dangerous.
As I understand, it is OK to leave the GPIO2 floating, although it is best practice to pull it up to VCC with a resistor.
The note under the boot mode table probably wanted to say that you should use a resistor rather than making a direct connection to VCC.
But probably due to some unfortunate edits to the sentence, it currently says that leaving GPIO2 floating is dangerous.