Meross mss310 smart switch support...

[mfabiani53]

Is there a way to add support to these smart swtiches?

[bramstroker]

You can measure it yourself and make a PR. But it's not easy to reliable measure low power values < 1W.
I have had good results with Zhurui PR10 to measure low power values.
You could try measuring with another smart plug though.