show battery_level as a percent vs a decimal

[chriskacerguis]

Description:

Currently the battery level for the WirelessTag component is returned as a decimal (e.g. 0.79 for 79%). This causes issues when these sensors are exposed via HomeKit (as HomeKit interoperates 0.79 as 0.79%), this fixes that issue properly return the battery_level as a percent.

Note: This is my first time working with Python, so please be gentile ;)

Related issue (if applicable): N/A

Breaking change note

The WirelessTag battery_level attribute is now reported as percent (i.e. 79, not 0.79).

Checklist:

• The code change is tested and works locally.
• Local tests pass with tox. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.

If user exposed functionality or configuration variables are added/changed: N/A

If the code communicates with devices, web services, or third-party tools: N/A

If the code does not interact with devices: N/A

[mvn23]

This will misbehave if other devices have a value between 1 and 100 for battery_remaining. Do all devices report battery_remaining as a decimal between 0 and 1?

[chriskacerguis]

When you say "other devices" do you mean outside of wireless tag devices? I can't comment what every one does, however, from what I have in my installation, other Battery values are reported as a percentage from 0 - 100 (that's what I see for my zwave / iPhone devices). So, from what I see this will make it consistent between components.

Edit: fixed word to be more specific.

[mvn23]

I mean other wireless tag devices.

[chriskacerguis]

They all report as a decimal, this will fix all WirelessTag devices to be this way.

This is from their example code:

batDisplayPc.text((tag.batteryRemaining * 100).toFixed(0));

http://wirelesstag.net/jshtmlview.aspx?html=index.html&js=styles/client.js

and you can see they all devices report as decimal and they are doing this conversion as well for their UI.