I spent some time looking the 2 button aqara wireless button switch
To make sure we talking about the same thing. its WXKG02LM
I’m afraid there is no way to discriminate which button is pressed. This is because the ST backend parser pre-processes the catchall and only returns on/off:1 without the endpoint ID.
This effectively renders the 2 button version useless. Only the single button version can be used with ST platform, until they change their backend to return more info to the device handler.
If you need a DTH with the wired switch version, to control dumb bulbs (with or without neutral), pls refer to the below link
