Homekit_ESP_AC_IRemote

When your ESP starts up, it sets it up in Station mode and tries to connect to a previously saved Access Point
if this is unsuccessful (or no previous network saved) it moves the ESP into Access Point mode and spins up a DNS and WebServer (default ip 192.168.4.1)
using any wifi enabled device with a browser (computer, phone, tablet) connect to the newly created Access Point
because of the Captive Portal and the DNS server you will either get a 'Join to network' type of popup or get any domain you try to access redirected to the configuration portal
choose one of the access points scanned, enter password, click save
ESP will try to connect. If successful, it relinquishes control back to your app. If not, reconnect to AP and reconfigure.
There are options to change this behavior or manually start the configportal and webportal independantly as well as run them in non blocking mode.

In your iOS device, open Home App and follow normal steps to add a new accessory.

Apple HomeKit App Air Conditioning Features: Power on, Power off, Cooling, Heating, ~~Fan speed~~， Current ambient temperature and humidity display.
Based on HomeKit Accessory Protocol Specification(Noncommercial Version) Release R2 ，there is a disclaimer stating that This accessory has not been certified for use with HomeKit, therefore some features may not be available. .
If you need to remotely control HomeKit accessories while away from home, please Set up your HomePod, HomePod mini, Apple TV, or iPad as a home hub
Infrared Signal Feedback: When a standard air conditioner remote performs actions supported by the Apple HomeKit protocol such as power on, power off, cooling, heating, and ~~fan speed~~, the HomeKit App will synchronously update the status.

Thanks