I bought on Aliexpress a 2 way and 3 way Zigbee switch. It did not worked out of the box, but after changing Device Type to Zigbee Multi Switch it worked for the 2 way switch. Two devices appeared (Parent and child). The child device type is Child Switch health. It works just fine.
When I connect the 3-way switch, the SmartThings and do the same things - only 2 of 3 switches appear in the app. The network device of the parent device is: BB6B.
The network device ID of the Child Switch is : BB6B:02.
ANd it works for two push buttons. When I change the network device ID to BB6B:03 - the app controls the 3rd button instead of the second button.
I cannot add another child device and connect it to the parent device and make these two devices IDs : BB6B:02 and BB6B:03.
Any ideas how to do this?
Maybe a custom device handler is needed?
The switch is on Tuya chipset.