But how do I make DeConz clear that those are the same?
From what I understand, deCONZ matches DDFs based on the Manufacturer Name and Model Identifier reported in the Basic Cluster, not the product name. So my plan would be:
Install the DDF bundle from the store linked above via the deCONZ Toolbox / integrated DDF store.
Check what my device actually reports: pair it, then read the Basic Cluster in the deCONZ GUI (or query manufacturername / modelid via the REST API) to see if the Hobeian unit identifies itself with one of the Tuya IDs already listed in the TS0222 DDF.
If the IDs don’t match: open the DDF editor (Edit → Open DDF Editor), load the TS0222 DDF and add my device’s combination to the manufacturername / modelid arrays, e.g.:
Depend of device.
Better to fist include it in deconz (you will see it on deconz but not on phoscon).
To get the correct modelID/ManufactureName and add the device to an exiting DDF if it’s a “similar” hardware.
But yes, generaly Tuya don’t create new device, it’s just clone with different ManufactureName.
Then restart deconz after editing the DDF, because Deconz load DDF only at start.
The uuid is already in the DDF
Just restart deconz after changes.
If it don’t work check the modelID and the Manufacture name in the cluster 0x0000 (Basic).