All info about the Arduino GIGA WiFi on "How Open Is This Gadget?":
https://HOITG.de/s028.htm

Table Of Contents:
00:00 Introduction
02:00 Specs GIGA board
03:06 GPOI sniffer
06:15 Microphone
06:48 Sound locating
07:45 Automatic Xylophone
08:30 WLAN Test
09:40 Conclusion