I’m a technician but new to ST and ZigBee,
I use several Smart Life ZigBee Power switches. 1gang and 2gang work well, but for the 3gang switch I get only 2 controls and I do not know to add a 2nd child device to control the 3rd gang.
App - add device - start connection on switch - fails but it appears as “Thing” in the device list. Then change the Type to “ZigBee Switch Power” for the 1gang and “ZigBee Multi Switch” for 2gang - everything is find. But for the 3gang I get only ONE child control so I can only control 2 of the 3 switches.
The child has the same ntwork id suffixed by :02
I tried to manually add a child device with suffix :03 or :04 but it does not help.