Steps to add AirPort Express to Homekit:1.Open the Home app.2.Tap the plus button in the upper-right corner.3.Tap Add Accessory.4.Tap Don't Have a Code or Can't Scan?5.Tap the icon for your AirPort Express.6.Tap Room if you wish to assign the base station to a room.7.Tap Done to finish.Reset AirPort Express | Apple AirPort Setup