What devices are supported by NSPanel?

Please refer to the full list here:
https://sonoff.tech/blogs/news/nspanel-supported-devices-list

The screen widget supports three types of additions: single devices, device groups, and manual scenes.
Even if a device is not directly supported by NSPanel, as long as it can be used as an action in an eWeLink smart scene, it can be indirectly controlled via manual scene widgets.