Update on HA integration and some suggestions for the API

[rrooggiieerr]

Hi! I thought you might be interested in the status of the HA integration so attached you'll find some screenshots. The pull request which I created yesterday is required to make the integration work. So when that's incorporated I can release the integration.

It's not entirely clear to me how the data groups work. Can you elaborate?

Also some thing I notices in your API which could use some fine tuning:
The function data_threshold expects the value to be in milliamperes while record_intensity_threshold in the UMmeterData object is converted to amperes.

In my opinion the keys record_capacity_threshold, record_energy_threshold and record_intensity_threshold don't really cover the purpose. I think recorded_capacity, recorded_energy and recording_treshold would be better fitting. What do you think?

[valletw]

Nice board !
For the data groups and record information, you can check here: Wiki RDTech_UM_series.
I used this wiki to format the data. The groups can store persistent data across device plug/unplug. I didn't used it, so I cannot help you on that point.

[rrooggiieerr]

I like how you implemented the UMmeterInterface!

Receiving response from te socket really needs to be done as follows

result = b''
while len(result) < nb:
    result += self._socket.recv(nb)
return result

and not

return bytearray(self._socket.recv(nb))

This will not read all data

I would like to add a bit more Exception handling and also some logging. Is that ok for you?

Also I need to wrap the socket in asynio to make it work with Home Assistant

[valletw]

Hi,
I pushed the interface modification (without BT support), and publish a new release.
My time will be limiting to work on the BT support for the next weeks/months. If you can make it by reusing my branch or directly from your preview PR it will be nice. I will try to follow the thread to help you and validate your modification.

I never implement asyncio on a project, so may be add the support of this first, and another PR for the BT support.