Add support for Amazon Indoor Air Quality Monitor

[Snid0]

These changes will create 6 new sensors for each amazon air quality sensor detected. These get updated each time the component polls the alexa API. No updates are recieved on websockets.

Indoor Air Quality
Temperature
Humidity
Particulate Matter
Carbon Monoxide
Volitile Organic Compounds

I pretty much copied the way the existing temperature sensor functionality worked. Expanding this to the extera sensors.

[alandtse]

Thanks, I do recommend you learn how to use a git client so you don't have to use the GitHub website to add files. It will also make it easier for you to experiment.

[alandtse]

Is it pretty clear the key resources will exist in instance exists? Want to avoid keyerrors for the majority of users who do not have IAQM.

[Snid0]

This code should only run if the appliance matches based on below.
if appliance["friendlyDescription"] == "Amazon Indoor Air Quality Monitor" :
I can only test against my device, but yes if instance existed there was always resources too.

[Snid0]

Is there any neater way of traversing down the keys than using get? Is get the only safe way if you are unsure if the key is there?

[alandtse]

I had missed it was nested in that if. That should be fine. But safest way is either nested gets or checking for keys before access.

Each level of nesting can be done like this with a get.

something.get("key1", {}).get("key2", DEFAULT)

[alandtse]

Thanks for this. I haven't tested it, but just have some questions for you. It doesn't necessarily mean make code changes but would like your thoughts.

[c3p0vsr2d2]

Works perfectly, thank you.
Two questions:

1. Is there any way to set the polling interval specifically for the air quality monitors? The sensor does report new values every minute, but seems that the integration polls data every 3 minutes?
2. I do not see new devices being created here, just additional entities - is this intended?

[Marcoletto]

HA see the entities but don't refresh them.
How can I solve?