I wouldn’t go for a cloud driven solution, like Tuya Wifi or Sensibo
tado has a universal LOCAL Wifi-to-infrared AC remote, but the AC remote controller must have a status screen for it to work.
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For AC’s with native Homey support:
Goto https://homey.app and search for airco
If Tuya is OK for you, yes, the Tuya Cloud app can control almost anything from Tuya Wifi, but the app is not maintained since last Januari and is looking for an other maintainer/developer:
Raw commands
You can receive all messages send for devices with trigger cards. Also there are now action cards to send commands to you device. On this way you can interact with not directly supported devices are commands. Combine it with the virtual devices app and you can control most of your devices. It’s a function for advanced users, there is no validation when sending a command to your device.
To get the device id’s, commands and possible values you can create a flow with the text event received trigger card. This card is returning device id, command and value for each action. Log the returned values to log app to know the commands of your devices, deviceid’s and possible values.
See also Howto of @Peter_Kawa : [App][Pro] Tuya Cloud - #765 by Peter_Kawa
Existing legacy devices can be used as long as they are paired, but can’t be added anymore
Legacy Light ( On/Off, some devices brightness and color)
Legacy Switch( On/Off)
Legacy Cover
The official API( non legacy devices) is using push messages, so changes to devices should be direct visible, so no more 10 minutes waiting for updates.
Scenes
This app support the use of scenes. In the mobile Tuya/Smart life app you can make ‘Tap to run’ actions( In the past they where called scenes). Those actions can be called in a flow from this app.
The scenes for the official API are not automatically updated, for now new scenes will only appear after a restart of this app.
See also howto of @Peter_Kawa : [App][Pro] Tuya Cloud - #296 by Peter_Kawa