Hello.
Help me find a datasheet for the module.
The module has a chip ar9331-al3a.
Still there are here such inscriptions: P09 1402
The module looks like this:

sc01.alicdn.com/kf/HTB1LoVQIFXXXXc9XXXXq6xXFXXXn/WiFi-Module-Atheros-AP121-AR9331-with-internal.jpg

The arrangement of the elements is exactly the same.
You need a circuit for connecting this module.