You must configure wifi network before adding the accessory to HomeKit. To configure Wi-Fi settings, device generates its own Wi-Fi in AP mode. You must connect to it in order to setup your Wi-Fi network.

Simply take your iOS device, go to Setting -> Wi-Fi, and search for an SSID called HomeKid- followed by the module's MAC address and connect to it. For security reasons the AP is password protected!

Wait a few seconds until a web appears showing you all Wi-Fi networks that the device has found. Select yours, and enter password then click the Join button! The module will try to connect the selected Wi-Fi network, this will take a couple of seconds.

Note: If the given password is wrong, you can Reset the Wi-fi settings by holding the Reset button for 10sec

In your iOS device, open Home App and follow normal steps to add a new accessory.
Pairing setup takes about 30 seconds.

Default  HomeKit code is 471-12-088.

Also You can scan this HomeKit QR code:

Note: If pairing fails, you can unpower your device, repower it, and start HomeKit setup again (Wifi settings keep configured)

You can mute the alarm within the Eve app (currently not implemented)

The code has a Reset function in case of something goes wrong. Wait about 5 seconds to allow device to boot completely, and then long press the button for at least 10sec!

Note: Single pressing the same button will toggle the alert ON or OFF

All configured settings has been removed and device is restarting. This removes HomeKit and Wi-Fi settings, and your device will go to Access Point mode next time in order to reconfigure Wi-Fi.

If wifi network becomes unreachable, device will keep searching Wi-Fi automatically until it can connect again when Wi-Fi becomes available.

If your ESP8266 module doesn't have physical button attached, you can use jumper wires to connect GPIO0 and GND for 10 seconds.

Note: Resetting the accessory may not remove it from the Home app, you need to do it manually after resetting! Before resetting the LED strip will flashing red 3 times, which indicates the start of Reset process!