As for the new wifi board, we can make a preliminary judgment whether a wifi board can work normally by simply observing the display state of the LED light. But, we should note that the insertion direction when wifi board is inserted into a Arduino shield board.
when network-serial assistant is used to debug wifi module, it is noted that the wifi module should be recovery to the default factory setting and the software settings.
We should choose the wifi signal transmitted from wifi module to debug the wifi module, or we cannot use the wifi module for the wireless communication rightly.